131 lines
3.4 KiB
PHP
Executable File
131 lines
3.4 KiB
PHP
Executable File
<?php namespace Illuminate\Database\Query\Grammars;
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use Illuminate\Database\Query\Builder;
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class SQLiteGrammar extends Grammar {
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/**
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* All of the available clause operators.
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*
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* @var array
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*/
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protected $operators = array(
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'=', '<', '>', '<=', '>=', '<>', '!=',
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'like', 'not like', 'between', 'ilike',
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'&', '|', '<<', '>>',
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);
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/**
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* Compile an insert statement into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $values
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* @return string
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*/
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public function compileInsert(Builder $query, array $values)
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{
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// Essentially we will force every insert to be treated as a batch insert which
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// simply makes creating the SQL easier for us since we can utilize the same
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// basic routine regardless of an amount of records given to us to insert.
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$table = $this->wrapTable($query->from);
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if ( ! is_array(reset($values)))
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{
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$values = array($values);
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}
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// If there is only one record being inserted, we will just use the usual query
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// grammar insert builder because no special syntax is needed for the single
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// row inserts in SQLite. However, if there are multiples, we'll continue.
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if (count($values) == 1)
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{
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return parent::compileInsert($query, reset($values));
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}
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$names = $this->columnize(array_keys(reset($values)));
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$columns = array();
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// SQLite requires us to build the multi-row insert as a listing of select with
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// unions joining them together. So we'll build out this list of columns and
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// then join them all together with select unions to complete the queries.
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foreach (array_keys(reset($values)) as $column)
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{
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$columns[] = '? as '.$this->wrap($column);
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}
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$columns = array_fill(0, count($values), implode(', ', $columns));
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return "insert into $table ($names) select ".implode(' union all select ', $columns);
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}
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/**
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* Compile a truncate table statement into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return array
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*/
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public function compileTruncate(Builder $query)
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{
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$sql = array('delete from sqlite_sequence where name = ?' => array($query->from));
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$sql['delete from '.$this->wrapTable($query->from)] = array();
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return $sql;
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}
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/**
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* Compile a "where day" clause.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $where
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* @return string
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*/
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protected function whereDay(Builder $query, $where)
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{
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return $this->dateBasedWhere('%d', $query, $where);
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}
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/**
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* Compile a "where month" clause.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $where
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* @return string
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*/
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protected function whereMonth(Builder $query, $where)
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{
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return $this->dateBasedWhere('%m', $query, $where);
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}
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/**
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* Compile a "where year" clause.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $where
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* @return string
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*/
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protected function whereYear(Builder $query, $where)
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{
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return $this->dateBasedWhere('%Y', $query, $where);
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}
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/**
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* Compile a date based where clause.
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*
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* @param string $type
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $where
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* @return string
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*/
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protected function dateBasedWhere($type, Builder $query, $where)
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{
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$value = str_pad($where['value'], 2, '0', STR_PAD_LEFT);
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$value = $this->parameter($value);
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return 'strftime(\''.$type.'\', '.$this->wrap($where['column']).') '.$where['operator'].' '.$value;
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}
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}
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