Subversion-Projekte lars-tiefland.laravel_shop

<?php

namespace Illuminate\Database\Query\Grammars;

use Illuminate\Database\Query\Builder;

use Illuminate\Support\Arr;

use Illuminate\Support\Str;

class SQLiteGrammar extends Grammar

{

    /**

     * All of the available clause operators.

     *

     * @var string[]

     */

    protected $operators = [

        '=', '<', '>', '<=', '>=', '<>', '!=',

        'like', 'not like', 'ilike',

        '&', '|', '<<', '>>',

    ];

    /**

     * Compile the lock into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  bool|string  $value

     * @return string

     */

    protected function compileLock(Builder $query, $value)

    {

        return '';

    }

    /**

     * Wrap a union subquery in parentheses.

     *

     * @param  string  $sql

     * @return string

     */

    protected function wrapUnion($sql)

    {

        return 'select * from ('.$sql.')';

    }

    /**

     * Compile a "where date" clause.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function whereDate(Builder $query, $where)

    {

        return $this->dateBasedWhere('%Y-%m-%d', $query, $where);

    }

    /**

     * Compile a "where day" clause.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function whereDay(Builder $query, $where)

    {

        return $this->dateBasedWhere('%d', $query, $where);

    }

    /**

     * Compile a "where month" clause.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function whereMonth(Builder $query, $where)

    {

        return $this->dateBasedWhere('%m', $query, $where);

    }

    /**

     * Compile a "where year" clause.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function whereYear(Builder $query, $where)

    {

        return $this->dateBasedWhere('%Y', $query, $where);

    }

    /**

     * Compile a "where time" clause.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function whereTime(Builder $query, $where)

    {

        return $this->dateBasedWhere('%H:%M:%S', $query, $where);

    }

    /**

     * Compile a date based where clause.

     *

     * @param  string  $type

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $where

     * @return string

     */

    protected function dateBasedWhere($type, Builder $query, $where)

    {

        $value = $this->parameter($where['value']);

        return "strftime('{$type}', {$this->wrap($where['column'])}) {$where['operator']} cast({$value} as text)";

    }

    /**

     * Compile the index hints for the query.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  \Illuminate\Database\Query\IndexHint  $indexHint

     * @return string

     */

    protected function compileIndexHint(Builder $query, $indexHint)

    {

        return $indexHint->type === 'force'

                ? "indexed by {$indexHint->index}"

                : '';

    }

    /**

     * Compile a "JSON length" statement into SQL.

     *

     * @param  string  $column

     * @param  string  $operator

     * @param  string  $value

     * @return string

     */

    protected function compileJsonLength($column, $operator, $value)

    {

        [$field, $path] = $this->wrapJsonFieldAndPath($column);

        return 'json_array_length('.$field.$path.') '.$operator.' '.$value;

    }

    /**

     * Compile a "JSON contains key" statement into SQL.

     *

     * @param  string  $column

     * @return string

     */

    protected function compileJsonContainsKey($column)

    {

        [$field, $path] = $this->wrapJsonFieldAndPath($column);

        return 'json_type('.$field.$path.') is not null';

    }

    /**

     * Compile an update statement into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $values

     * @return string

     */

    public function compileUpdate(Builder $query, array $values)

    {

        if (isset($query->joins) || isset($query->limit)) {

            return $this->compileUpdateWithJoinsOrLimit($query, $values);

        }

        return parent::compileUpdate($query, $values);

    }

    /**

     * Compile an insert ignore statement into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $values

     * @return string

     */

    public function compileInsertOrIgnore(Builder $query, array $values)

    {

        return Str::replaceFirst('insert', 'insert or ignore', $this->compileInsert($query, $values));

    }

    /**

     * Compile the columns for an update statement.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $values

     * @return string

     */

    protected function compileUpdateColumns(Builder $query, array $values)

    {

        $jsonGroups = $this->groupJsonColumnsForUpdate($values);

        return collect($values)->reject(function ($value, $key) {

            return $this->isJsonSelector($key);

        })->merge($jsonGroups)->map(function ($value, $key) use ($jsonGroups) {

            $column = last(explode('.', $key));

            $value = isset($jsonGroups[$key]) ? $this->compileJsonPatch($column, $value) : $this->parameter($value);

            return $this->wrap($column).' = '.$value;

        })->implode(', ');

    }

    /**

     * Compile an "upsert" statement into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $values

     * @param  array  $uniqueBy

     * @param  array  $update

     * @return string

     */

    public function compileUpsert(Builder $query, array $values, array $uniqueBy, array $update)

    {

        $sql = $this->compileInsert($query, $values);

        $sql .= ' on conflict ('.$this->columnize($uniqueBy).') do update set ';

        $columns = collect($update)->map(function ($value, $key) {

            return is_numeric($key)

                ? $this->wrap($value).' = '.$this->wrapValue('excluded').'.'.$this->wrap($value)

                : $this->wrap($key).' = '.$this->parameter($value);

        })->implode(', ');

        return $sql.$columns;

    }

    /**

     * Group the nested JSON columns.

     *

     * @param  array  $values

     * @return array

     */

    protected function groupJsonColumnsForUpdate(array $values)

    {

        $groups = [];

        foreach ($values as $key => $value) {

            if ($this->isJsonSelector($key)) {

                Arr::set($groups, str_replace('->', '.', Str::after($key, '.')), $value);

            }

        }

        return $groups;

    }

    /**

     * Compile a "JSON" patch statement into SQL.

     *

     * @param  string  $column

     * @param  mixed  $value

     * @return string

     */

    protected function compileJsonPatch($column, $value)

    {

        return "json_patch(ifnull({$this->wrap($column)}, json('{}')), json({$this->parameter($value)}))";

    }

    /**

     * Compile an update statement with joins or limit into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @param  array  $values

     * @return string

     */

    protected function compileUpdateWithJoinsOrLimit(Builder $query, array $values)

    {

        $table = $this->wrapTable($query->from);

        $columns = $this->compileUpdateColumns($query, $values);

        $alias = last(preg_split('/\s+as\s+/i', $query->from));

        $selectSql = $this->compileSelect($query->select($alias.'.rowid'));

        return "update {$table} set {$columns} where {$this->wrap('rowid')} in ({$selectSql})";

    }

    /**

     * Prepare the bindings for an update statement.

     *

     * @param  array  $bindings

     * @param  array  $values

     * @return array

     */

    public function prepareBindingsForUpdate(array $bindings, array $values)

    {

        $groups = $this->groupJsonColumnsForUpdate($values);

        $values = collect($values)->reject(function ($value, $key) {

            return $this->isJsonSelector($key);

        })->merge($groups)->map(function ($value) {

            return is_array($value) ? json_encode($value) : $value;

        })->all();

        $cleanBindings = Arr::except($bindings, 'select');

        return array_values(

            array_merge($values, Arr::flatten($cleanBindings))

        );

    }

    /**

     * Compile a delete statement into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @return string

     */

    public function compileDelete(Builder $query)

    {

        if (isset($query->joins) || isset($query->limit)) {

            return $this->compileDeleteWithJoinsOrLimit($query);

        }

        return parent::compileDelete($query);

    }

    /**

     * Compile a delete statement with joins or limit into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @return string

     */

    protected function compileDeleteWithJoinsOrLimit(Builder $query)

    {

        $table = $this->wrapTable($query->from);

        $alias = last(preg_split('/\s+as\s+/i', $query->from));

        $selectSql = $this->compileSelect($query->select($alias.'.rowid'));

        return "delete from {$table} where {$this->wrap('rowid')} in ({$selectSql})";

    }

    /**

     * Compile a truncate table statement into SQL.

     *

     * @param  \Illuminate\Database\Query\Builder  $query

     * @return array

     */

    public function compileTruncate(Builder $query)

    {

        return [

            'delete from sqlite_sequence where name = ?' => [$query->from],

            'delete from '.$this->wrapTable($query->from) => [],

        ];

    }

    /**

     * Wrap the given JSON selector.

     *

     * @param  string  $value

     * @return string

     */

    protected function wrapJsonSelector($value)

    {

        [$field, $path] = $this->wrapJsonFieldAndPath($value);

        return 'json_extract('.$field.$path.')';

    }

}