413 lines
11 KiB
PHP
413 lines
11 KiB
PHP
<?php
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namespace Illuminate\Database\Query\Grammars;
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use Illuminate\Database\Query\Builder;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Str;
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class PostgresGrammar extends Grammar
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{
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/**
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* All of the available clause operators.
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*
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* @var string[]
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*/
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protected $operators = [
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'=', '<', '>', '<=', '>=', '<>', '!=',
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'like', 'not like', 'between', 'ilike', 'not ilike',
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'~', '&', '|', '#', '<<', '>>', '<<=', '>>=',
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'&&', '@>', '<@', '?', '?|', '?&', '||', '-', '@?', '@@', '#-',
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'is distinct from', 'is not distinct from',
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];
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/**
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* {@inheritdoc}
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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 whereBasic(Builder $query, $where)
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{
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if (Str::contains(strtolower($where['operator']), 'like')) {
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return sprintf(
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'%s::text %s %s',
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$this->wrap($where['column']),
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$where['operator'],
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$this->parameter($where['value'])
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);
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}
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return parent::whereBasic($query, $where);
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}
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/**
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* Compile a "where date" 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 whereDate(Builder $query, $where)
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{
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$value = $this->parameter($where['value']);
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return $this->wrap($where['column']).'::date '.$where['operator'].' '.$value;
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}
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/**
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* Compile a "where time" 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 whereTime(Builder $query, $where)
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{
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$value = $this->parameter($where['value']);
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return $this->wrap($where['column']).'::time '.$where['operator'].' '.$value;
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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 = $this->parameter($where['value']);
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return 'extract('.$type.' from '.$this->wrap($where['column']).') '.$where['operator'].' '.$value;
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}
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/**
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* Compile the "select *" portion of the query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $columns
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* @return string|null
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*/
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protected function compileColumns(Builder $query, $columns)
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{
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// If the query is actually performing an aggregating select, we will let that
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// compiler handle the building of the select clauses, as it will need some
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// more syntax that is best handled by that function to keep things neat.
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if (! is_null($query->aggregate)) {
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return;
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}
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if (is_array($query->distinct)) {
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$select = 'select distinct on ('.$this->columnize($query->distinct).') ';
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} elseif ($query->distinct) {
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$select = 'select distinct ';
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} else {
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$select = 'select ';
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}
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return $select.$this->columnize($columns);
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}
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/**
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* Compile a "JSON contains" statement into SQL.
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*
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* @param string $column
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* @param string $value
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* @return string
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*/
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protected function compileJsonContains($column, $value)
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{
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$column = str_replace('->>', '->', $this->wrap($column));
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return '('.$column.')::jsonb @> '.$value;
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}
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/**
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* Compile a "JSON length" statement into SQL.
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*
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* @param string $column
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* @param string $operator
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* @param string $value
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* @return string
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*/
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protected function compileJsonLength($column, $operator, $value)
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{
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$column = str_replace('->>', '->', $this->wrap($column));
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return 'json_array_length(('.$column.')::json) '.$operator.' '.$value;
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}
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/**
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* Compile the lock into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param bool|string $value
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* @return string
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*/
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protected function compileLock(Builder $query, $value)
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{
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if (! is_string($value)) {
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return $value ? 'for update' : 'for share';
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}
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return $value;
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}
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/**
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* Compile an insert ignore 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 compileInsertOrIgnore(Builder $query, array $values)
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{
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return $this->compileInsert($query, $values).' on conflict do nothing';
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}
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/**
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* Compile an insert and get ID 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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* @param string $sequence
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* @return string
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*/
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public function compileInsertGetId(Builder $query, $values, $sequence)
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{
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return $this->compileInsert($query, $values).' returning '.$this->wrap($sequence ?: 'id');
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}
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/**
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* Compile an update 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 compileUpdate(Builder $query, array $values)
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{
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if (isset($query->joins) || isset($query->limit)) {
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return $this->compileUpdateWithJoinsOrLimit($query, $values);
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}
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return parent::compileUpdate($query, $values);
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}
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/**
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* Compile the columns for an update statement.
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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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protected function compileUpdateColumns(Builder $query, array $values)
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{
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return collect($values)->map(function ($value, $key) {
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$column = last(explode('.', $key));
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if ($this->isJsonSelector($key)) {
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return $this->compileJsonUpdateColumn($column, $value);
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}
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return $this->wrap($column).' = '.$this->parameter($value);
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})->implode(', ');
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}
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/**
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* Compile an "upsert" 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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* @param array $uniqueBy
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* @param array $update
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* @return string
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*/
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public function compileUpsert(Builder $query, array $values, array $uniqueBy, array $update)
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{
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$sql = $this->compileInsert($query, $values);
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$sql .= ' on conflict ('.$this->columnize($uniqueBy).') do update set ';
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$columns = collect($update)->map(function ($value, $key) {
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return is_numeric($key)
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? $this->wrap($value).' = '.$this->wrapValue('excluded').'.'.$this->wrap($value)
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: $this->wrap($key).' = '.$this->parameter($value);
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})->implode(', ');
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return $sql.$columns;
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}
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/**
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* Prepares a JSON column being updated using the JSONB_SET function.
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*
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* @param string $key
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* @param mixed $value
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* @return string
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*/
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protected function compileJsonUpdateColumn($key, $value)
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{
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$segments = explode('->', $key);
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$field = $this->wrap(array_shift($segments));
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$path = '\'{"'.implode('","', $segments).'"}\'';
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return "{$field} = jsonb_set({$field}::jsonb, {$path}, {$this->parameter($value)})";
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}
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/**
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* Compile an update statement with joins or limit 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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protected function compileUpdateWithJoinsOrLimit(Builder $query, array $values)
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{
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$table = $this->wrapTable($query->from);
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$columns = $this->compileUpdateColumns($query, $values);
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$alias = last(preg_split('/\s+as\s+/i', $query->from));
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$selectSql = $this->compileSelect($query->select($alias.'.ctid'));
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return "update {$table} set {$columns} where {$this->wrap('ctid')} in ({$selectSql})";
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}
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/**
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* Prepare the bindings for an update statement.
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*
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* @param array $bindings
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* @param array $values
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* @return array
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*/
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public function prepareBindingsForUpdate(array $bindings, array $values)
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{
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$values = collect($values)->map(function ($value, $column) {
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return is_array($value) || ($this->isJsonSelector($column) && ! $this->isExpression($value))
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? json_encode($value)
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: $value;
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})->all();
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$cleanBindings = Arr::except($bindings, 'select');
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return array_values(
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array_merge($values, Arr::flatten($cleanBindings))
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);
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}
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/**
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* Compile a delete statement into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return string
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*/
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public function compileDelete(Builder $query)
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{
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if (isset($query->joins) || isset($query->limit)) {
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return $this->compileDeleteWithJoinsOrLimit($query);
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}
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return parent::compileDelete($query);
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}
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/**
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* Compile a delete statement with joins or limit into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return string
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*/
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protected function compileDeleteWithJoinsOrLimit(Builder $query)
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{
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$table = $this->wrapTable($query->from);
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$alias = last(preg_split('/\s+as\s+/i', $query->from));
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$selectSql = $this->compileSelect($query->select($alias.'.ctid'));
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return "delete from {$table} where {$this->wrap('ctid')} in ({$selectSql})";
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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 $query)
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{
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return ['truncate '.$this->wrapTable($query->from).' restart identity cascade' => []];
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}
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/**
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* Wrap the given JSON selector.
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*
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* @param string $value
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* @return string
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*/
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protected function wrapJsonSelector($value)
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{
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$path = explode('->', $value);
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$field = $this->wrapSegments(explode('.', array_shift($path)));
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$wrappedPath = $this->wrapJsonPathAttributes($path);
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$attribute = array_pop($wrappedPath);
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if (! empty($wrappedPath)) {
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return $field.'->'.implode('->', $wrappedPath).'->>'.$attribute;
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}
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return $field.'->>'.$attribute;
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}
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/**
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*Wrap the given JSON selector for boolean values.
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*
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* @param string $value
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* @return string
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*/
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protected function wrapJsonBooleanSelector($value)
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{
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$selector = str_replace(
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'->>', '->',
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$this->wrapJsonSelector($value)
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);
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return '('.$selector.')::jsonb';
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}
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/**
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* Wrap the given JSON boolean value.
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*
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* @param string $value
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* @return string
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*/
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protected function wrapJsonBooleanValue($value)
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{
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return "'".$value."'::jsonb";
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}
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/**
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* Wrap the attributes of the give JSON path.
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*
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* @param array $path
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* @return array
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*/
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protected function wrapJsonPathAttributes($path)
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{
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return array_map(function ($attribute) {
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return filter_var($attribute, FILTER_VALIDATE_INT) !== false
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? $attribute
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: "'$attribute'";
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}, $path);
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}
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}
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