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<?php

/**
 * Base class that represents a row from the 'article' table.
 *
 * 
 *
 * This class was autogenerated by Propel 1.4.2 on:
 *
 * Fri Aug  5 09:39:36 2011
 *
 * @package    lib.model.om
 */
abstract class BaseArticle extends BaseObject  implements Persistent {


        /**
         * The Peer class.
         * Instance provides a convenient way of calling static methods on a class
         * that calling code may not be able to identify.
         * @var        ArticlePeer
         */
        protected static $peer;

        /**
         * The value for the id field.
         * @var        int
         */
        protected $id;

        /**
         * The value for the title field.
         * @var        string
         */
        protected $title;

        /**
         * The value for the body field.
         * @var        string
         */
        protected $body;

        /**
         * The value for the online field.
         * @var        boolean
         */
        protected $online;

        /**
         * The value for the excerpt field.
         * @var        string
         */
        protected $excerpt;

        /**
         * The value for the category_id field.
         * @var        int
         */
        protected $category_id;

        /**
         * The value for the created_at field.
         * @var        string
         */
        protected $created_at;

        /**
         * The value for the end_date field.
         * @var        string
         */
        protected $end_date;

        /**
         * The value for the book_id field.
         * @var        int
         */
        protected $book_id;

        /**
         * @var        Category
         */
        protected $aCategory;

        /**
         * @var        Book
         */
        protected $aBook;

        /**
         * @var        array AuthorArticle[] Collection to store aggregation of AuthorArticle objects.
         */
        protected $collAuthorArticles;

        /**
         * @var        Criteria The criteria used to select the current contents of collAuthorArticles.
         */
        private $lastAuthorArticleCriteria = null;

        /**
         * @var        array Attachment[] Collection to store aggregation of Attachment objects.
         */
        protected $collAttachments;

        /**
         * @var        Criteria The criteria used to select the current contents of collAttachments.
         */
        private $lastAttachmentCriteria = null;

        /**
         * Flag to prevent endless save loop, if this object is referenced
         * by another object which falls in this transaction.
         * @var        boolean
         */
        protected $alreadyInSave = false;

        /**
         * Flag to prevent endless validation loop, if this object is referenced
         * by another object which falls in this transaction.
         * @var        boolean
         */
        protected $alreadyInValidation = false;

        // symfony behavior
        
        const PEER = 'ArticlePeer';

        /**
         * Get the [id] column value.
         * 
         * @return     int
         */
        public function getId()
        {
                return $this->id;
        }

        /**
         * Get the [title] column value.
         * 
         * @return     string
         */
        public function getTitle()
        {
                return $this->title;
        }

        /**
         * Get the [body] column value.
         * 
         * @return     string
         */
        public function getBody()
        {
                return $this->body;
        }

        /**
         * Get the [online] column value.
         * 
         * @return     boolean
         */
        public function getOnline()
        {
                return $this->online;
        }

        /**
         * Get the [excerpt] column value.
         * 
         * @return     string
         */
        public function getExcerpt()
        {
                return $this->excerpt;
        }

        /**
         * Get the [category_id] column value.
         * 
         * @return     int
         */
        public function getCategoryId()
        {
                return $this->category_id;
        }

        /**
         * Get the [optionally formatted] temporal [created_at] column value.
         * 
         *
         * @param      string $format The date/time format string (either date()-style or strftime()-style).
         *                                                      If format is NULL, then the raw DateTime object will be returned.
         * @return     mixed Formatted date/time value as string or DateTime object (if format is NULL), NULL if column is NULL
         * @throws     PropelException - if unable to parse/validate the date/time value.
         */
        public function getCreatedAt($format = 'Y-m-d H:i:s')
        {
                if ($this->created_at === null) {
                        return null;
                }



                try {
                        $dt = new DateTime($this->created_at);
                } catch (Exception $x) {
                        throw new PropelException("Internally stored date/time/timestamp value could not be converted to DateTime: " . var_export($this->created_at, true), $x);
                }

                if ($format === null) {
                        // Because propel.useDateTimeClass is TRUE, we return a DateTime object.
                        return $dt;
                } elseif (strpos($format, '%') !== false) {
                        return strftime($format, $dt->format('U'));
                } else {
                        return $dt->format($format);
                }
        }

        /**
         * Get the [optionally formatted] temporal [end_date] column value.
         * 
         *
         * @param      string $format The date/time format string (either date()-style or strftime()-style).
         *                                                      If format is NULL, then the raw DateTime object will be returned.
         * @return     mixed Formatted date/time value as string or DateTime object (if format is NULL), NULL if column is NULL
         * @throws     PropelException - if unable to parse/validate the date/time value.
         */
        public function getEndDate($format = 'Y-m-d H:i:s')
        {
                if ($this->end_date === null) {
                        return null;
                }



                try {
                        $dt = new DateTime($this->end_date);
                } catch (Exception $x) {
                        throw new PropelException("Internally stored date/time/timestamp value could not be converted to DateTime: " . var_export($this->end_date, true), $x);
                }

                if ($format === null) {
                        // Because propel.useDateTimeClass is TRUE, we return a DateTime object.
                        return $dt;
                } elseif (strpos($format, '%') !== false) {
                        return strftime($format, $dt->format('U'));
                } else {
                        return $dt->format($format);
                }
        }

        /**
         * Get the [book_id] column value.
         * 
         * @return     int
         */
        public function getBookId()
        {
                return $this->book_id;
        }

        /**
         * Set the value of [id] column.
         * 
         * @param      int $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setId($v)
        {
                if ($v !== null) {
                        $v = (int) $v;
                }

                if ($this->id !== $v) {
                        $this->id = $v;
                        $this->modifiedColumns[] = ArticlePeer::ID;
                }

                return $this;
        } // setId()

        /**
         * Set the value of [title] column.
         * 
         * @param      string $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setTitle($v)
        {
                if ($v !== null) {
                        $v = (string) $v;
                }

                if ($this->title !== $v) {
                        $this->title = $v;
                        $this->modifiedColumns[] = ArticlePeer::TITLE;
                }

                return $this;
        } // setTitle()

        /**
         * Set the value of [body] column.
         * 
         * @param      string $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setBody($v)
        {
                if ($v !== null) {
                        $v = (string) $v;
                }

                if ($this->body !== $v) {
                        $this->body = $v;
                        $this->modifiedColumns[] = ArticlePeer::BODY;
                }

                return $this;
        } // setBody()

        /**
         * Set the value of [online] column.
         * 
         * @param      boolean $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setOnline($v)
        {
                if ($v !== null) {
                        $v = (boolean) $v;
                }

                if ($this->online !== $v) {
                        $this->online = $v;
                        $this->modifiedColumns[] = ArticlePeer::ONLINE;
                }

                return $this;
        } // setOnline()

        /**
         * Set the value of [excerpt] column.
         * 
         * @param      string $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setExcerpt($v)
        {
                if ($v !== null) {
                        $v = (string) $v;
                }

                if ($this->excerpt !== $v) {
                        $this->excerpt = $v;
                        $this->modifiedColumns[] = ArticlePeer::EXCERPT;
                }

                return $this;
        } // setExcerpt()

        /**
         * Set the value of [category_id] column.
         * 
         * @param      int $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setCategoryId($v)
        {
                if ($v !== null) {
                        $v = (int) $v;
                }

                if ($this->category_id !== $v) {
                        $this->category_id = $v;
                        $this->modifiedColumns[] = ArticlePeer::CATEGORY_ID;
                }

                if ($this->aCategory !== null && $this->aCategory->getId() !== $v) {
                        $this->aCategory = null;
                }

                return $this;
        } // setCategoryId()

        /**
         * Sets the value of [created_at] column to a normalized version of the date/time value specified.
         * 
         * @param      mixed $v string, integer (timestamp), or DateTime value.  Empty string will
         *                                              be treated as NULL for temporal objects.
         * @return     Article The current object (for fluent API support)
         */
        public function setCreatedAt($v)
        {
                // we treat '' as NULL for temporal objects because DateTime('') == DateTime('now')
                // -- which is unexpected, to say the least.
                if ($v === null || $v === '') {
                        $dt = null;
                } elseif ($v instanceof DateTime) {
                        $dt = $v;
                } else {
                        // some string/numeric value passed; we normalize that so that we can
                        // validate it.
                        try {
                                if (is_numeric($v)) { // if it's a unix timestamp
                                        $dt = new DateTime('@'.$v, new DateTimeZone('UTC'));
                                        // We have to explicitly specify and then change the time zone because of a
                                        // DateTime bug: http://bugs.php.net/bug.php?id=43003
                                        $dt->setTimeZone(new DateTimeZone(date_default_timezone_get()));
                                } else {
                                        $dt = new DateTime($v);
                                }
                        } catch (Exception $x) {
                                throw new PropelException('Error parsing date/time value: ' . var_export($v, true), $x);
                        }
                }

                if ( $this->created_at !== null || $dt !== null ) {
                        // (nested ifs are a little easier to read in this case)

                        $currNorm = ($this->created_at !== null && $tmpDt = new DateTime($this->created_at)) ? $tmpDt->format('Y-m-d\\TH:i:sO') : null;
                        $newNorm = ($dt !== null) ? $dt->format('Y-m-d\\TH:i:sO') : null;

                        if ( ($currNorm !== $newNorm) // normalized values don't match 
                                        )
                        {
                                $this->created_at = ($dt ? $dt->format('Y-m-d\\TH:i:sO') : null);
                                $this->modifiedColumns[] = ArticlePeer::CREATED_AT;
                        }
                } // if either are not null

                return $this;
        } // setCreatedAt()

        /**
         * Sets the value of [end_date] column to a normalized version of the date/time value specified.
         * 
         * @param      mixed $v string, integer (timestamp), or DateTime value.  Empty string will
         *                                              be treated as NULL for temporal objects.
         * @return     Article The current object (for fluent API support)
         */
        public function setEndDate($v)
        {
                // we treat '' as NULL for temporal objects because DateTime('') == DateTime('now')
                // -- which is unexpected, to say the least.
                if ($v === null || $v === '') {
                        $dt = null;
                } elseif ($v instanceof DateTime) {
                        $dt = $v;
                } else {
                        // some string/numeric value passed; we normalize that so that we can
                        // validate it.
                        try {
                                if (is_numeric($v)) { // if it's a unix timestamp
                                        $dt = new DateTime('@'.$v, new DateTimeZone('UTC'));
                                        // We have to explicitly specify and then change the time zone because of a
                                        // DateTime bug: http://bugs.php.net/bug.php?id=43003
                                        $dt->setTimeZone(new DateTimeZone(date_default_timezone_get()));
                                } else {
                                        $dt = new DateTime($v);
                                }
                        } catch (Exception $x) {
                                throw new PropelException('Error parsing date/time value: ' . var_export($v, true), $x);
                        }
                }

                if ( $this->end_date !== null || $dt !== null ) {
                        // (nested ifs are a little easier to read in this case)

                        $currNorm = ($this->end_date !== null && $tmpDt = new DateTime($this->end_date)) ? $tmpDt->format('Y-m-d\\TH:i:sO') : null;
                        $newNorm = ($dt !== null) ? $dt->format('Y-m-d\\TH:i:sO') : null;

                        if ( ($currNorm !== $newNorm) // normalized values don't match 
                                        )
                        {
                                $this->end_date = ($dt ? $dt->format('Y-m-d\\TH:i:sO') : null);
                                $this->modifiedColumns[] = ArticlePeer::END_DATE;
                        }
                } // if either are not null

                return $this;
        } // setEndDate()

        /**
         * Set the value of [book_id] column.
         * 
         * @param      int $v new value
         * @return     Article The current object (for fluent API support)
         */
        public function setBookId($v)
        {
                if ($v !== null) {
                        $v = (int) $v;
                }

                if ($this->book_id !== $v) {
                        $this->book_id = $v;
                        $this->modifiedColumns[] = ArticlePeer::BOOK_ID;
                }

                if ($this->aBook !== null && $this->aBook->getId() !== $v) {
                        $this->aBook = null;
                }

                return $this;
        } // setBookId()

        /**
         * Indicates whether the columns in this object are only set to default values.
         *
         * This method can be used in conjunction with isModified() to indicate whether an object is both
         * modified _and_ has some values set which are non-default.
         *
         * @return     boolean Whether the columns in this object are only been set with default values.
         */
        public function hasOnlyDefaultValues()
        {
                // otherwise, everything was equal, so return TRUE
                return true;
        } // hasOnlyDefaultValues()

        /**
         * Hydrates (populates) the object variables with values from the database resultset.
         *
         * An offset (0-based "start column") is specified so that objects can be hydrated
         * with a subset of the columns in the resultset rows.  This is needed, for example,
         * for results of JOIN queries where the resultset row includes columns from two or
         * more tables.
         *
         * @param      array $row The row returned by PDOStatement->fetch(PDO::FETCH_NUM)
         * @param      int $startcol 0-based offset column which indicates which restultset column to start with.
         * @param      boolean $rehydrate Whether this object is being re-hydrated from the database.
         * @return     int next starting column
         * @throws     PropelException  - Any caught Exception will be rewrapped as a PropelException.
         */
        public function hydrate($row, $startcol = 0, $rehydrate = false)
        {
                try {

                        $this->id = ($row[$startcol + 0] !== null) ? (int) $row[$startcol + 0] : null;
                        $this->title = ($row[$startcol + 1] !== null) ? (string) $row[$startcol + 1] : null;
                        $this->body = ($row[$startcol + 2] !== null) ? (string) $row[$startcol + 2] : null;
                        $this->online = ($row[$startcol + 3] !== null) ? (boolean) $row[$startcol + 3] : null;
                        $this->excerpt = ($row[$startcol + 4] !== null) ? (string) $row[$startcol + 4] : null;
                        $this->category_id = ($row[$startcol + 5] !== null) ? (int) $row[$startcol + 5] : null;
                        $this->created_at = ($row[$startcol + 6] !== null) ? (string) $row[$startcol + 6] : null;
                        $this->end_date = ($row[$startcol + 7] !== null) ? (string) $row[$startcol + 7] : null;
                        $this->book_id = ($row[$startcol + 8] !== null) ? (int) $row[$startcol + 8] : null;
                        $this->resetModified();

                        $this->setNew(false);

                        if ($rehydrate) {
                                $this->ensureConsistency();
                        }

                        // FIXME - using NUM_COLUMNS may be clearer.
                        return $startcol + 9; // 9 = ArticlePeer::NUM_COLUMNS - ArticlePeer::NUM_LAZY_LOAD_COLUMNS).

                } catch (Exception $e) {
                        throw new PropelException("Error populating Article object", $e);
                }
        }

        /**
         * Checks and repairs the internal consistency of the object.
         *
         * This method is executed after an already-instantiated object is re-hydrated
         * from the database.  It exists to check any foreign keys to make sure that
         * the objects related to the current object are correct based on foreign key.
         *
         * You can override this method in the stub class, but you should always invoke
         * the base method from the overridden method (i.e. parent::ensureConsistency()),
         * in case your model changes.
         *
         * @throws     PropelException
         */
        public function ensureConsistency()
        {

                if ($this->aCategory !== null && $this->category_id !== $this->aCategory->getId()) {
                        $this->aCategory = null;
                }
                if ($this->aBook !== null && $this->book_id !== $this->aBook->getId()) {
                        $this->aBook = null;
                }
        } // ensureConsistency

        /**
         * Reloads this object from datastore based on primary key and (optionally) resets all associated objects.
         *
         * This will only work if the object has been saved and has a valid primary key set.
         *
         * @param      boolean $deep (optional) Whether to also de-associated any related objects.
         * @param      PropelPDO $con (optional) The PropelPDO connection to use.
         * @return     void
         * @throws     PropelException - if this object is deleted, unsaved or doesn't have pk match in db
         */
        public function reload($deep = false, PropelPDO $con = null)
        {
                if ($this->isDeleted()) {
                        throw new PropelException("Cannot reload a deleted object.");
                }

                if ($this->isNew()) {
                        throw new PropelException("Cannot reload an unsaved object.");
                }

                if ($con === null) {
                        $con = Propel::getConnection(ArticlePeer::DATABASE_NAME, Propel::CONNECTION_READ);
                }

                // We don't need to alter the object instance pool; we're just modifying this instance
                // already in the pool.

                $stmt = ArticlePeer::doSelectStmt($this->buildPkeyCriteria(), $con);
                $row = $stmt->fetch(PDO::FETCH_NUM);
                $stmt->closeCursor();
                if (!$row) {
                        throw new PropelException('Cannot find matching row in the database to reload object values.');
                }
                $this->hydrate($row, 0, true); // rehydrate

                if ($deep) {  // also de-associate any related objects?

                        $this->aCategory = null;
                        $this->aBook = null;
                        $this->collAuthorArticles = null;
                        $this->lastAuthorArticleCriteria = null;

                        $this->collAttachments = null;
                        $this->lastAttachmentCriteria = null;

                } // if (deep)
        }

        /**
         * Removes this object from datastore and sets delete attribute.
         *
         * @param      PropelPDO $con
         * @return     void
         * @throws     PropelException
         * @see        BaseObject::setDeleted()
         * @see        BaseObject::isDeleted()
         */
        public function delete(PropelPDO $con = null)
        {
                if ($this->isDeleted()) {
                        throw new PropelException("This object has already been deleted.");
                }

                if ($con === null) {
                        $con = Propel::getConnection(ArticlePeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
                }
                
                $con->beginTransaction();
                try {
                        $ret = $this->preDelete($con);
                        // symfony_behaviors behavior
                        foreach (sfMixer::getCallables('BaseArticle:delete:pre') as $callable)
                        {
                          if (call_user_func($callable, $this, $con))
                          {
                            $con->commit();
                        
                            return;
                          }
                        }

                        if ($ret) {
                                ArticlePeer::doDelete($this, $con);
                                $this->postDelete($con);
                                // symfony_behaviors behavior
                                foreach (sfMixer::getCallables('BaseArticle:delete:post') as $callable)
                                {
                                  call_user_func($callable, $this, $con);
                                }

                                $this->setDeleted(true);
                                $con->commit();
                        } else {
                                $con->commit();
                        }
                } catch (PropelException $e) {
                        $con->rollBack();
                        throw $e;
                }
        }

        /**
         * Persists this object to the database.
         *
         * If the object is new, it inserts it; otherwise an update is performed.
         * All modified related objects will also be persisted in the doSave()
         * method.  This method wraps all precipitate database operations in a
         * single transaction.
         *
         * @param      PropelPDO $con
         * @return     int The number of rows affected by this insert/update and any referring fk objects' save() operations.
         * @throws     PropelException
         * @see        doSave()
         */
        public function save(PropelPDO $con = null)
        {
                if ($this->isDeleted()) {
                        throw new PropelException("You cannot save an object that has been deleted.");
                }

                if ($con === null) {
                        $con = Propel::getConnection(ArticlePeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
                }
                
                $con->beginTransaction();
                $isInsert = $this->isNew();
                try {
                        $ret = $this->preSave($con);
                        // symfony_behaviors behavior
                        foreach (sfMixer::getCallables('BaseArticle:save:pre') as $callable)
                        {
                          if (is_integer($affectedRows = call_user_func($callable, $this, $con)))
                          {
                            $con->commit();
                        
                            return $affectedRows;
                          }
                        }

                        // symfony_timestampable behavior
                        
                        if ($isInsert) {
                                $ret = $ret && $this->preInsert($con);
                                // symfony_timestampable behavior
                                if (!$this->isColumnModified(ArticlePeer::CREATED_AT))
                                {
                                  $this->setCreatedAt(time());
                                }

                        } else {
                                $ret = $ret && $this->preUpdate($con);
                        }
                        if ($ret) {
                                $affectedRows = $this->doSave($con);
                                if ($isInsert) {
                                        $this->postInsert($con);
                                } else {
                                        $this->postUpdate($con);
                                }
                                $this->postSave($con);
                                // symfony_behaviors behavior
                                foreach (sfMixer::getCallables('BaseArticle:save:post') as $callable)
                                {
                                  call_user_func($callable, $this, $con, $affectedRows);
                                }

                                ArticlePeer::addInstanceToPool($this);
                        } else {
                                $affectedRows = 0;
                        }
                        $con->commit();
                        return $affectedRows;
                } catch (PropelException $e) {
                        $con->rollBack();
                        throw $e;
                }
        }

        /**
         * Performs the work of inserting or updating the row in the database.
         *
         * If the object is new, it inserts it; otherwise an update is performed.
         * All related objects are also updated in this method.
         *
         * @param      PropelPDO $con
         * @return     int The number of rows affected by this insert/update and any referring fk objects' save() operations.
         * @throws     PropelException
         * @see        save()
         */
        protected function doSave(PropelPDO $con)
        {
                $affectedRows = 0; // initialize var to track total num of affected rows
                if (!$this->alreadyInSave) {
                        $this->alreadyInSave = true;

                        // We call the save method on the following object(s) if they
                        // were passed to this object by their coresponding set
                        // method.  This object relates to these object(s) by a
                        // foreign key reference.

                        if ($this->aCategory !== null) {
                                if ($this->aCategory->isModified() || $this->aCategory->isNew()) {
                                        $affectedRows += $this->aCategory->save($con);
                                }
                                $this->setCategory($this->aCategory);
                        }

                        if ($this->aBook !== null) {
                                if ($this->aBook->isModified() || $this->aBook->isNew()) {
                                        $affectedRows += $this->aBook->save($con);
                                }
                                $this->setBook($this->aBook);
                        }

                        if ($this->isNew() ) {
                                $this->modifiedColumns[] = ArticlePeer::ID;
                        }

                        // If this object has been modified, then save it to the database.
                        if ($this->isModified()) {
                                if ($this->isNew()) {
                                        $pk = ArticlePeer::doInsert($this, $con);
                                        $affectedRows += 1; // we are assuming that there is only 1 row per doInsert() which
                                                                                 // should always be true here (even though technically
                                                                                 // BasePeer::doInsert() can insert multiple rows).

                                        $this->setId($pk);  //[IMV] update autoincrement primary key

                                        $this->setNew(false);
                                } else {
                                        $affectedRows += ArticlePeer::doUpdate($this, $con);
                                }

                                $this->resetModified(); // [HL] After being saved an object is no longer 'modified'
                        }

                        if ($this->collAuthorArticles !== null) {
                                foreach ($this->collAuthorArticles as $referrerFK) {
                                        if (!$referrerFK->isDeleted()) {
                                                $affectedRows += $referrerFK->save($con);
                                        }
                                }
                        }

                        if ($this->collAttachments !== null) {
                                foreach ($this->collAttachments as $referrerFK) {
                                        if (!$referrerFK->isDeleted()) {
                                                $affectedRows += $referrerFK->save($con);
                                        }
                                }
                        }

                        $this->alreadyInSave = false;

                }
                return $affectedRows;
        } // doSave()

        /**
         * Array of ValidationFailed objects.
         * @var        array ValidationFailed[]
         */
        protected $validationFailures = array();

        /**
         * Gets any ValidationFailed objects that resulted from last call to validate().
         *
         *
         * @return     array ValidationFailed[]
         * @see        validate()
         */
        public function getValidationFailures()
        {
                return $this->validationFailures;
        }

        /**
         * Validates the objects modified field values and all objects related to this table.
         *
         * If $columns is either a column name or an array of column names
         * only those columns are validated.
         *
         * @param      mixed $columns Column name or an array of column names.
         * @return     boolean Whether all columns pass validation.
         * @see        doValidate()
         * @see        getValidationFailures()
         */
        public function validate($columns = null)
        {
                $res = $this->doValidate($columns);
                if ($res === true) {
                        $this->validationFailures = array();
                        return true;
                } else {
                        $this->validationFailures = $res;
                        return false;
                }
        }

        /**
         * This function performs the validation work for complex object models.
         *
         * In addition to checking the current object, all related objects will
         * also be validated.  If all pass then <code>true</code> is returned; otherwise
         * an aggreagated array of ValidationFailed objects will be returned.
         *
         * @param      array $columns Array of column names to validate.
         * @return     mixed <code>true</code> if all validations pass; array of <code>ValidationFailed</code> objets otherwise.
         */
        protected function doValidate($columns = null)
        {
                if (!$this->alreadyInValidation) {
                        $this->alreadyInValidation = true;
                        $retval = null;

                        $failureMap = array();


                        // We call the validate method on the following object(s) if they
                        // were passed to this object by their coresponding set
                        // method.  This object relates to these object(s) by a
                        // foreign key reference.

                        if ($this->aCategory !== null) {
                                if (!$this->aCategory->validate($columns)) {
                                        $failureMap = array_merge($failureMap, $this->aCategory->getValidationFailures());
                                }
                        }

                        if ($this->aBook !== null) {
                                if (!$this->aBook->validate($columns)) {
                                        $failureMap = array_merge($failureMap, $this->aBook->getValidationFailures());
                                }
                        }


                        if (($retval = ArticlePeer::doValidate($this, $columns)) !== true) {
                                $failureMap = array_merge($failureMap, $retval);
                        }


                                if ($this->collAuthorArticles !== null) {
                                        foreach ($this->collAuthorArticles as $referrerFK) {
                                                if (!$referrerFK->validate($columns)) {
                                                        $failureMap = array_merge($failureMap, $referrerFK->getValidationFailures());
                                                }
                                        }
                                }

                                if ($this->collAttachments !== null) {
                                        foreach ($this->collAttachments as $referrerFK) {
                                                if (!$referrerFK->validate($columns)) {
                                                        $failureMap = array_merge($failureMap, $referrerFK->getValidationFailures());
                                                }
                                        }
                                }


                        $this->alreadyInValidation = false;
                }

                return (!empty($failureMap) ? $failureMap : true);
        }

        /**
         * Retrieves a field from the object by name passed in as a string.
         *
         * @param      string $name name
         * @param      string $type The type of fieldname the $name is of:
         *                     one of the class type constants BasePeer::TYPE_PHPNAME, BasePeer::TYPE_STUDLYPHPNAME
         *                     BasePeer::TYPE_COLNAME, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_NUM
         * @return     mixed Value of field.
         */
        public function getByName($name, $type = BasePeer::TYPE_PHPNAME)
        {
                $pos = ArticlePeer::translateFieldName($name, $type, BasePeer::TYPE_NUM);
                $field = $this->getByPosition($pos);
                return $field;
        }

        /**
         * Retrieves a field from the object by Position as specified in the xml schema.
         * Zero-based.
         *
         * @param      int $pos position in xml schema
         * @return     mixed Value of field at $pos
         */
        public function getByPosition($pos)
        {
                switch($pos) {
                        case 0:
                                return $this->getId();
                                break;
                        case 1:
                                return $this->getTitle();
                                break;
                        case 2:
                                return $this->getBody();
                                break;
                        case 3:
                                return $this->getOnline();
                                break;
                        case 4:
                                return $this->getExcerpt();
                                break;
                        case 5:
                                return $this->getCategoryId();
                                break;
                        case 6:
                                return $this->getCreatedAt();
                                break;
                        case 7:
                                return $this->getEndDate();
                                break;
                        case 8:
                                return $this->getBookId();
                                break;
                        default:
                                return null;
                                break;
                } // switch()
        }

        /**
         * Exports the object as an array.
         *
         * You can specify the key type of the array by passing one of the class
         * type constants.
         *
         * @param      string $keyType (optional) One of the class type constants BasePeer::TYPE_PHPNAME, BasePeer::TYPE_STUDLYPHPNAME
         *                        BasePeer::TYPE_COLNAME, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_NUM. Defaults to BasePeer::TYPE_PHPNAME.
         * @param      boolean $includeLazyLoadColumns (optional) Whether to include lazy loaded columns.  Defaults to TRUE.
         * @return     an associative array containing the field names (as keys) and field values
         */
        public function toArray($keyType = BasePeer::TYPE_PHPNAME, $includeLazyLoadColumns = true)
        {
                $keys = ArticlePeer::getFieldNames($keyType);
                $result = array(
                        $keys[0] => $this->getId(),
                        $keys[1] => $this->getTitle(),
                        $keys[2] => $this->getBody(),
                        $keys[3] => $this->getOnline(),
                        $keys[4] => $this->getExcerpt(),
                        $keys[5] => $this->getCategoryId(),
                        $keys[6] => $this->getCreatedAt(),
                        $keys[7] => $this->getEndDate(),
                        $keys[8] => $this->getBookId(),
                );
                return $result;
        }

        /**
         * Sets a field from the object by name passed in as a string.
         *
         * @param      string $name peer name
         * @param      mixed $value field value
         * @param      string $type The type of fieldname the $name is of:
         *                     one of the class type constants BasePeer::TYPE_PHPNAME, BasePeer::TYPE_STUDLYPHPNAME
         *                     BasePeer::TYPE_COLNAME, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_NUM
         * @return     void
         */
        public function setByName($name, $value, $type = BasePeer::TYPE_PHPNAME)
        {
                $pos = ArticlePeer::translateFieldName($name, $type, BasePeer::TYPE_NUM);
                return $this->setByPosition($pos, $value);
        }

        /**
         * Sets a field from the object by Position as specified in the xml schema.
         * Zero-based.
         *
         * @param      int $pos position in xml schema
         * @param      mixed $value field value
         * @return     void
         */
        public function setByPosition($pos, $value)
        {
                switch($pos) {
                        case 0:
                                $this->setId($value);
                                break;
                        case 1:
                                $this->setTitle($value);
                                break;
                        case 2:
                                $this->setBody($value);
                                break;
                        case 3:
                                $this->setOnline($value);
                                break;
                        case 4:
                                $this->setExcerpt($value);
                                break;
                        case 5:
                                $this->setCategoryId($value);
                                break;
                        case 6:
                                $this->setCreatedAt($value);
                                break;
                        case 7:
                                $this->setEndDate($value);
                                break;
                        case 8:
                                $this->setBookId($value);
                                break;
                } // switch()
        }

        /**
         * Populates the object using an array.
         *
         * This is particularly useful when populating an object from one of the
         * request arrays (e.g. $_POST).  This method goes through the column
         * names, checking to see whether a matching key exists in populated
         * array. If so the setByName() method is called for that column.
         *
         * You can specify the key type of the array by additionally passing one
         * of the class type constants BasePeer::TYPE_PHPNAME, BasePeer::TYPE_STUDLYPHPNAME,
         * BasePeer::TYPE_COLNAME, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_NUM.
         * The default key type is the column's phpname (e.g. 'AuthorId')
         *
         * @param      array  $arr     An array to populate the object from.
         * @param      string $keyType The type of keys the array uses.
         * @return     void
         */
        public function fromArray($arr, $keyType = BasePeer::TYPE_PHPNAME)
        {
                $keys = ArticlePeer::getFieldNames($keyType);

                if (array_key_exists($keys[0], $arr)) $this->setId($arr[$keys[0]]);
                if (array_key_exists($keys[1], $arr)) $this->setTitle($arr[$keys[1]]);
                if (array_key_exists($keys[2], $arr)) $this->setBody($arr[$keys[2]]);
                if (array_key_exists($keys[3], $arr)) $this->setOnline($arr[$keys[3]]);
                if (array_key_exists($keys[4], $arr)) $this->setExcerpt($arr[$keys[4]]);
                if (array_key_exists($keys[5], $arr)) $this->setCategoryId($arr[$keys[5]]);
                if (array_key_exists($keys[6], $arr)) $this->setCreatedAt($arr[$keys[6]]);
                if (array_key_exists($keys[7], $arr)) $this->setEndDate($arr[$keys[7]]);
                if (array_key_exists($keys[8], $arr)) $this->setBookId($arr[$keys[8]]);
        }

        /**
         * Build a Criteria object containing the values of all modified columns in this object.
         *
         * @return     Criteria The Criteria object containing all modified values.
         */
        public function buildCriteria()
        {
                $criteria = new Criteria(ArticlePeer::DATABASE_NAME);

                if ($this->isColumnModified(ArticlePeer::ID)) $criteria->add(ArticlePeer::ID, $this->id);
                if ($this->isColumnModified(ArticlePeer::TITLE)) $criteria->add(ArticlePeer::TITLE, $this->title);
                if ($this->isColumnModified(ArticlePeer::BODY)) $criteria->add(ArticlePeer::BODY, $this->body);
                if ($this->isColumnModified(ArticlePeer::ONLINE)) $criteria->add(ArticlePeer::ONLINE, $this->online);
                if ($this->isColumnModified(ArticlePeer::EXCERPT)) $criteria->add(ArticlePeer::EXCERPT, $this->excerpt);
                if ($this->isColumnModified(ArticlePeer::CATEGORY_ID)) $criteria->add(ArticlePeer::CATEGORY_ID, $this->category_id);
                if ($this->isColumnModified(ArticlePeer::CREATED_AT)) $criteria->add(ArticlePeer::CREATED_AT, $this->created_at);
                if ($this->isColumnModified(ArticlePeer::END_DATE)) $criteria->add(ArticlePeer::END_DATE, $this->end_date);
                if ($this->isColumnModified(ArticlePeer::BOOK_ID)) $criteria->add(ArticlePeer::BOOK_ID, $this->book_id);

                return $criteria;
        }

        /**
         * Builds a Criteria object containing the primary key for this object.
         *
         * Unlike buildCriteria() this method includes the primary key values regardless
         * of whether or not they have been modified.
         *
         * @return     Criteria The Criteria object containing value(s) for primary key(s).
         */
        public function buildPkeyCriteria()
        {
                $criteria = new Criteria(ArticlePeer::DATABASE_NAME);

                $criteria->add(ArticlePeer::ID, $this->id);

                return $criteria;
        }

        /**
         * Returns the primary key for this object (row).
         * @return     int
         */
        public function getPrimaryKey()
        {
                return $this->getId();
        }

        /**
         * Generic method to set the primary key (id column).
         *
         * @param      int $key Primary key.
         * @return     void
         */
        public function setPrimaryKey($key)
        {
                $this->setId($key);
        }

        /**
         * Sets contents of passed object to values from current object.
         *
         * If desired, this method can also make copies of all associated (fkey referrers)
         * objects.
         *
         * @param      object $copyObj An object of Article (or compatible) type.
         * @param      boolean $deepCopy Whether to also copy all rows that refer (by fkey) to the current row.
         * @throws     PropelException
         */
        public function copyInto($copyObj, $deepCopy = false)
        {

                $copyObj->setTitle($this->title);

                $copyObj->setBody($this->body);

                $copyObj->setOnline($this->online);

                $copyObj->setExcerpt($this->excerpt);

                $copyObj->setCategoryId($this->category_id);

                $copyObj->setCreatedAt($this->created_at);

                $copyObj->setEndDate($this->end_date);

                $copyObj->setBookId($this->book_id);


                if ($deepCopy) {
                        // important: temporarily setNew(false) because this affects the behavior of
                        // the getter/setter methods for fkey referrer objects.
                        $copyObj->setNew(false);

                        foreach ($this->getAuthorArticles() as $relObj) {
                                if ($relObj !== $this) {  // ensure that we don't try to copy a reference to ourselves
                                        $copyObj->addAuthorArticle($relObj->copy($deepCopy));
                                }
                        }

                        foreach ($this->getAttachments() as $relObj) {
                                if ($relObj !== $this) {  // ensure that we don't try to copy a reference to ourselves
                                        $copyObj->addAttachment($relObj->copy($deepCopy));
                                }
                        }

                } // if ($deepCopy)


                $copyObj->setNew(true);

                $copyObj->setId(NULL); // this is a auto-increment column, so set to default value

        }

        /**
         * Makes a copy of this object that will be inserted as a new row in table when saved.
         * It creates a new object filling in the simple attributes, but skipping any primary
         * keys that are defined for the table.
         *
         * If desired, this method can also make copies of all associated (fkey referrers)
         * objects.
         *
         * @param      boolean $deepCopy Whether to also copy all rows that refer (by fkey) to the current row.
         * @return     Article Clone of current object.
         * @throws     PropelException
         */
        public function copy($deepCopy = false)
        {
                // we use get_class(), because this might be a subclass
                $clazz = get_class($this);
                $copyObj = new $clazz();
                $this->copyInto($copyObj, $deepCopy);
                return $copyObj;
        }

        /**
         * Returns a peer instance associated with this om.
         *
         * Since Peer classes are not to have any instance attributes, this method returns the
         * same instance for all member of this class. The method could therefore
         * be static, but this would prevent one from overriding the behavior.
         *
         * @return     ArticlePeer
         */
        public function getPeer()
        {
                if (self::$peer === null) {
                        self::$peer = new ArticlePeer();
                }
                return self::$peer;
        }

        /**
         * Declares an association between this object and a Category object.
         *
         * @param      Category $v
         * @return     Article The current object (for fluent API support)
         * @throws     PropelException
         */
        public function setCategory(Category $v = null)
        {
                if ($v === null) {
                        $this->setCategoryId(NULL);
                } else {
                        $this->setCategoryId($v->getId());
                }

                $this->aCategory = $v;

                // Add binding for other direction of this n:n relationship.
                // If this object has already been added to the Category object, it will not be re-added.
                if ($v !== null) {
                        $v->addArticle($this);
                }

                return $this;
        }


        /**
         * Get the associated Category object
         *
         * @param      PropelPDO Optional Connection object.
         * @return     Category The associated Category object.
         * @throws     PropelException
         */
        public function getCategory(PropelPDO $con = null)
        {
                if ($this->aCategory === null && ($this->category_id !== null)) {
                        $this->aCategory = CategoryPeer::retrieveByPk($this->category_id);
                        /* The following can be used additionally to
                           guarantee the related object contains a reference
                           to this object.  This level of coupling may, however, be
                           undesirable since it could result in an only partially populated collection
                           in the referenced object.
                           $this->aCategory->addArticles($this);
                         */
                }
                return $this->aCategory;
        }

        /**
         * Declares an association between this object and a Book object.
         *
         * @param      Book $v
         * @return     Article The current object (for fluent API support)
         * @throws     PropelException
         */
        public function setBook(Book $v = null)
        {
                if ($v === null) {
                        $this->setBookId(NULL);
                } else {
                        $this->setBookId($v->getId());
                }

                $this->aBook = $v;

                // Add binding for other direction of this n:n relationship.
                // If this object has already been added to the Book object, it will not be re-added.
                if ($v !== null) {
                        $v->addArticle($this);
                }

                return $this;
        }


        /**
         * Get the associated Book object
         *
         * @param      PropelPDO Optional Connection object.
         * @return     Book The associated Book object.
         * @throws     PropelException
         */
        public function getBook(PropelPDO $con = null)
        {
                if ($this->aBook === null && ($this->book_id !== null)) {
                        $this->aBook = BookPeer::retrieveByPk($this->book_id);
                        /* The following can be used additionally to
                           guarantee the related object contains a reference
                           to this object.  This level of coupling may, however, be
                           undesirable since it could result in an only partially populated collection
                           in the referenced object.
                           $this->aBook->addArticles($this);
                         */
                }
                return $this->aBook;
        }

        /**
         * Clears out the collAuthorArticles collection (array).
         *
         * This does not modify the database; however, it will remove any associated objects, causing
         * them to be refetched by subsequent calls to accessor method.
         *
         * @return     void
         * @see        addAuthorArticles()
         */
        public function clearAuthorArticles()
        {
                $this->collAuthorArticles = null; // important to set this to NULL since that means it is uninitialized
        }

        /**
         * Initializes the collAuthorArticles collection (array).
         *
         * By default this just sets the collAuthorArticles collection to an empty array (like clearcollAuthorArticles());
         * however, you may wish to override this method in your stub class to provide setting appropriate
         * to your application -- for example, setting the initial array to the values stored in database.
         *
         * @return     void
         */
        public function initAuthorArticles()
        {
                $this->collAuthorArticles = array();
        }

        /**
         * Gets an array of AuthorArticle objects which contain a foreign key that references this object.
         *
         * If this collection has already been initialized with an identical Criteria, it returns the collection.
         * Otherwise if this Article has previously been saved, it will retrieve
         * related AuthorArticles from storage. If this Article is new, it will return
         * an empty collection or the current collection, the criteria is ignored on a new object.
         *
         * @param      PropelPDO $con
         * @param      Criteria $criteria
         * @return     array AuthorArticle[]
         * @throws     PropelException
         */
        public function getAuthorArticles($criteria = null, PropelPDO $con = null)
        {
                if ($criteria === null) {
                        $criteria = new Criteria(ArticlePeer::DATABASE_NAME);
                }
                elseif ($criteria instanceof Criteria)
                {
                        $criteria = clone $criteria;
                }

                if ($this->collAuthorArticles === null) {
                        if ($this->isNew()) {
                           $this->collAuthorArticles = array();
                        } else {

                                $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                                AuthorArticlePeer::addSelectColumns($criteria);
                                $this->collAuthorArticles = AuthorArticlePeer::doSelect($criteria, $con);
                        }
                } else {
                        // criteria has no effect for a new object
                        if (!$this->isNew()) {
                                // the following code is to determine if a new query is
                                // called for.  If the criteria is the same as the last
                                // one, just return the collection.


                                $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                                AuthorArticlePeer::addSelectColumns($criteria);
                                if (!isset($this->lastAuthorArticleCriteria) || !$this->lastAuthorArticleCriteria->equals($criteria)) {
                                        $this->collAuthorArticles = AuthorArticlePeer::doSelect($criteria, $con);
                                }
                        }
                }
                $this->lastAuthorArticleCriteria = $criteria;
                return $this->collAuthorArticles;
        }

        /**
         * Returns the number of related AuthorArticle objects.
         *
         * @param      Criteria $criteria
         * @param      boolean $distinct
         * @param      PropelPDO $con
         * @return     int Count of related AuthorArticle objects.
         * @throws     PropelException
         */
        public function countAuthorArticles(Criteria $criteria = null, $distinct = false, PropelPDO $con = null)
        {
                if ($criteria === null) {
                        $criteria = new Criteria(ArticlePeer::DATABASE_NAME);
                } else {
                        $criteria = clone $criteria;
                }

                if ($distinct) {
                        $criteria->setDistinct();
                }

                $count = null;

                if ($this->collAuthorArticles === null) {
                        if ($this->isNew()) {
                                $count = 0;
                        } else {

                                $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                                $count = AuthorArticlePeer::doCount($criteria, false, $con);
                        }
                } else {
                        // criteria has no effect for a new object
                        if (!$this->isNew()) {
                                // the following code is to determine if a new query is
                                // called for.  If the criteria is the same as the last
                                // one, just return count of the collection.


                                $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                                if (!isset($this->lastAuthorArticleCriteria) || !$this->lastAuthorArticleCriteria->equals($criteria)) {
                                        $count = AuthorArticlePeer::doCount($criteria, false, $con);
                                } else {
                                        $count = count($this->collAuthorArticles);
                                }
                        } else {
                                $count = count($this->collAuthorArticles);
                        }
                }
                return $count;
        }

        /**
         * Method called to associate a AuthorArticle object to this object
         * through the AuthorArticle foreign key attribute.
         *
         * @param      AuthorArticle $l AuthorArticle
         * @return     void
         * @throws     PropelException
         */
        public function addAuthorArticle(AuthorArticle $l)
        {
                if ($this->collAuthorArticles === null) {
                        $this->initAuthorArticles();
                }
                if (!in_array($l, $this->collAuthorArticles, true)) { // only add it if the **same** object is not already associated
                        array_push($this->collAuthorArticles, $l);
                        $l->setArticle($this);
                }
        }


        /**
         * If this collection has already been initialized with
         * an identical criteria, it returns the collection.
         * Otherwise if this Article is new, it will return
         * an empty collection; or if this Article has previously
         * been saved, it will retrieve related AuthorArticles from storage.
         *
         * This method is protected by default in order to keep the public
         * api reasonable.  You can provide public methods for those you
         * actually need in Article.
         */
        public function getAuthorArticlesJoinAuthor($criteria = null, $con = null, $join_behavior = Criteria::LEFT_JOIN)
        {
                if ($criteria === null) {
                        $criteria = new Criteria(ArticlePeer::DATABASE_NAME);
                }
                elseif ($criteria instanceof Criteria)
                {
                        $criteria = clone $criteria;
                }

                if ($this->collAuthorArticles === null) {
                        if ($this->isNew()) {
                                $this->collAuthorArticles = array();
                        } else {

                                $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                                $this->collAuthorArticles = AuthorArticlePeer::doSelectJoinAuthor($criteria, $con, $join_behavior);
                        }
                } else {
                        // the following code is to determine if a new query is
                        // called for.  If the criteria is the same as the last
                        // one, just return the collection.

                        $criteria->add(AuthorArticlePeer::ARTICLE_ID, $this->id);

                        if (!isset($this->lastAuthorArticleCriteria) || !$this->lastAuthorArticleCriteria->equals($criteria)) {
                                $this->collAuthorArticles = AuthorArticlePeer::doSelectJoinAuthor($criteria, $con, $join_behavior);
                        }
                }
                $this->lastAuthorArticleCriteria = $criteria;

                return $this->collAuthorArticles;
        }

        /**
         * Clears out the collAttachments collection (array).
         *
         * This does not modify the database; however, it will remove any associated objects, causing
         * them to be refetched by subsequent calls to accessor method.
         *
         * @return     void
         * @see        addAttachments()
         */
        public function clearAttachments()
        {
                $this->collAttachments = null; // important to set this to NULL since that means it is uninitialized
        }

        /**
         * Initializes the collAttachments collection (array).
         *
         * By default this just sets the collAttachments collection to an empty array (like clearcollAttachments());
         * however, you may wish to override this method in your stub class to provide setting appropriate
         * to your application -- for example, setting the initial array to the values stored in database.
         *
         * @return     void
         */
        public function initAttachments()
        {
                $this->collAttachments = array();
        }

        /**
         * Gets an array of Attachment objects which contain a foreign key that references this object.
         *
         * If this collection has already been initialized with an identical Criteria, it returns the collection.
         * Otherwise if this Article has previously been saved, it will retrieve
         * related Attachments from storage. If this Article is new, it will return
         * an empty collection or the current collection, the criteria is ignored on a new object.
         *
         * @param      PropelPDO $con
         * @param      Criteria $criteria
         * @return     array Attachment[]
         * @throws     PropelException
         */
        public function getAttachments($criteria = null, PropelPDO $con = null)
        {
                if ($criteria === null) {
                        $criteria = new Criteria(ArticlePeer::DATABASE_NAME);
                }
                elseif ($criteria instanceof Criteria)
                {
                        $criteria = clone $criteria;
                }

                if ($this->collAttachments === null) {
                        if ($this->isNew()) {
                           $this->collAttachments = array();
                        } else {

                                $criteria->add(AttachmentPeer::ARTICLE_ID, $this->id);

                                AttachmentPeer::addSelectColumns($criteria);
                                $this->collAttachments = AttachmentPeer::doSelect($criteria, $con);
                        }
                } else {
                        // criteria has no effect for a new object
                        if (!$this->isNew()) {
                                // the following code is to determine if a new query is
                                // called for.  If the criteria is the same as the last
                                // one, just return the collection.


                                $criteria->add(AttachmentPeer::ARTICLE_ID, $this->id);

                                AttachmentPeer::addSelectColumns($criteria);
                                if (!isset($this->lastAttachmentCriteria) || !$this->lastAttachmentCriteria->equals($criteria)) {
                                        $this->collAttachments = AttachmentPeer::doSelect($criteria, $con);
                                }
                        }
                }
                $this->lastAttachmentCriteria = $criteria;
                return $this->collAttachments;
        }

        /**
         * Returns the number of related Attachment objects.
         *
         * @param      Criteria $criteria
         * @param      boolean $distinct
         * @param      PropelPDO $con
         * @return     int Count of related Attachment objects.
         * @throws     PropelException
         */
        public function countAttachments(Criteria $criteria = null, $distinct = false, PropelPDO $con = null)
        {
                if ($criteria === null) {
                        $criteria = new Criteria(ArticlePeer::DATABASE_NAME);
                } else {
                        $criteria = clone $criteria;
                }

                if ($distinct) {
                        $criteria->setDistinct();
                }

                $count = null;

                if ($this->collAttachments === null) {
                        if ($this->isNew()) {
                                $count = 0;
                        } else {

                                $criteria->add(AttachmentPeer::ARTICLE_ID, $this->id);

                                $count = AttachmentPeer::doCount($criteria, false, $con);
                        }
                } else {
                        // criteria has no effect for a new object
                        if (!$this->isNew()) {
                                // the following code is to determine if a new query is
                                // called for.  If the criteria is the same as the last
                                // one, just return count of the collection.


                                $criteria->add(AttachmentPeer::ARTICLE_ID, $this->id);

                                if (!isset($this->lastAttachmentCriteria) || !$this->lastAttachmentCriteria->equals($criteria)) {
                                        $count = AttachmentPeer::doCount($criteria, false, $con);
                                } else {
                                        $count = count($this->collAttachments);
                                }
                        } else {
                                $count = count($this->collAttachments);
                        }
                }
                return $count;
        }

        /**
         * Method called to associate a Attachment object to this object
         * through the Attachment foreign key attribute.
         *
         * @param      Attachment $l Attachment
         * @return     void
         * @throws     PropelException
         */
        public function addAttachment(Attachment $l)
        {
                if ($this->collAttachments === null) {
                        $this->initAttachments();
                }
                if (!in_array($l, $this->collAttachments, true)) { // only add it if the **same** object is not already associated
                        array_push($this->collAttachments, $l);
                        $l->setArticle($this);
                }
        }

        /**
         * Resets all collections of referencing foreign keys.
         *
         * This method is a user-space workaround for PHP's inability to garbage collect objects
         * with circular references.  This is currently necessary when using Propel in certain
         * daemon or large-volumne/high-memory operations.
         *
         * @param      boolean $deep Whether to also clear the references on all associated objects.
         */
        public function clearAllReferences($deep = false)
        {
                if ($deep) {
                        if ($this->collAuthorArticles) {
                                foreach ((array) $this->collAuthorArticles as $o) {
                                        $o->clearAllReferences($deep);
                                }
                        }
                        if ($this->collAttachments) {
                                foreach ((array) $this->collAttachments as $o) {
                                        $o->clearAllReferences($deep);
                                }
                        }
                } // if ($deep)

                $this->collAuthorArticles = null;
                $this->collAttachments = null;
                        $this->aCategory = null;
                        $this->aBook = null;
        }

        // symfony_behaviors behavior
        
        /**
         * Calls methods defined via {@link sfMixer}.
         */
        public function __call($method, $arguments)
        {
          if (!$callable = sfMixer::getCallable('BaseArticle:'.$method))
          {
            throw new sfException(sprintf('Call to undefined method BaseArticle::%s', $method));
          }
        
          array_unshift($arguments, $this);
        
          return call_user_func_array($callable, $arguments);
        }

} // BaseArticle