635 lines
17 KiB
PHP
635 lines
17 KiB
PHP
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<?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 SqlServerGrammar 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', 'ilike',
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'&', '&=', '|', '|=', '^', '^=',
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];
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/**
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* Compile a select query 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 compileSelect(Builder $query)
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{
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if (! $query->offset) {
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return parent::compileSelect($query);
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}
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if (is_null($query->columns)) {
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$query->columns = ['*'];
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}
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$components = $this->compileComponents($query);
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if (! empty($components['orders'])) {
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return parent::compileSelect($query)." offset {$query->offset} rows fetch next {$query->limit} rows only";
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}
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// If an offset is present on the query, we will need to wrap the query in
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// a big "ANSI" offset syntax block. This is very nasty compared to the
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// other database systems but is necessary for implementing features.
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return $this->compileAnsiOffset(
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$query, $components
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);
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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, $columns)
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{
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if (! is_null($query->aggregate)) {
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return;
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}
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$select = $query->distinct ? 'select distinct ' : 'select ';
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// If there is a limit on the query, but not an offset, we will add the top
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// clause to the query, which serves as a "limit" type clause within the
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// SQL Server system similar to the limit keywords available in MySQL.
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if (is_numeric($query->limit) && $query->limit > 0 && $query->offset <= 0) {
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$select .= 'top '.((int) $query->limit).' ';
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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 the "from" portion of the query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param string $table
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* @return string
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*/
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protected function compileFrom(Builder $query, $table)
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{
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$from = parent::compileFrom($query, $table);
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if (is_string($query->lock)) {
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return $from.' '.$query->lock;
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}
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if (! is_null($query->lock)) {
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return $from.' with(rowlock,'.($query->lock ? 'updlock,' : '').'holdlock)';
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}
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return $from;
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}
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/**
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* Compile the index hints for the query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param \Illuminate\Database\Query\IndexHint $indexHint
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* @return string
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*/
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protected function compileIndexHint(Builder $query, $indexHint)
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{
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return $indexHint->type === 'force'
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? "with (index({$indexHint->index}))"
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: '';
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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 whereBitwise(Builder $query, $where)
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{
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$value = $this->parameter($where['value']);
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$operator = str_replace('?', '??', $where['operator']);
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return '('.$this->wrap($where['column']).' '.$operator.' '.$value.') != 0';
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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 'cast('.$this->wrap($where['column']).' as 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 'cast('.$this->wrap($where['column']).' as time) '.$where['operator'].' '.$value;
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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, $value)
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{
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[$field, $path] = $this->wrapJsonFieldAndPath($column);
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return $value.' in (select [value] from openjson('.$field.$path.'))';
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}
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/**
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* Prepare the binding for a "JSON contains" statement.
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*
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* @param mixed $binding
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* @return string
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*/
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public function prepareBindingForJsonContains($binding)
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{
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return is_bool($binding) ? json_encode($binding) : $binding;
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}
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/**
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* Compile a "JSON contains key" statement into SQL.
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*
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* @param string $column
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* @return string
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*/
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protected function compileJsonContainsKey($column)
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{
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$segments = explode('->', $column);
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$lastSegment = array_pop($segments);
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if (preg_match('/\[([0-9]+)\]$/', $lastSegment, $matches)) {
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$segments[] = Str::beforeLast($lastSegment, $matches[0]);
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$key = $matches[1];
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} else {
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$key = "'".str_replace("'", "''", $lastSegment)."'";
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}
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[$field, $path] = $this->wrapJsonFieldAndPath(implode('->', $segments));
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return $key.' in (select [key] from openjson('.$field.$path.'))';
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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, $value)
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{
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[$field, $path] = $this->wrapJsonFieldAndPath($column);
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return '(select count(*) from openjson('.$field.$path.')) '.$operator.' '.$value;
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}
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/**
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* Compile a "JSON value cast" statement into SQL.
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*
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* @param string $value
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* @return string
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*/
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public function compileJsonValueCast($value)
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{
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return 'json_query('.$value.')';
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}
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/**
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* Compile a single having clause.
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*
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* @param array $having
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* @return string
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*/
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protected function compileHaving(array $having)
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{
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if ($having['type'] === 'Bitwise') {
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return $this->compileHavingBitwise($having);
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}
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return parent::compileHaving($having);
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}
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/**
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* Compile a having clause involving a bitwise operator.
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*
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* @param array $having
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* @return string
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*/
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protected function compileHavingBitwise($having)
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{
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$column = $this->wrap($having['column']);
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$parameter = $this->parameter($having['value']);
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return '('.$column.' '.$having['operator'].' '.$parameter.') != 0';
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}
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/**
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* Create a full ANSI offset clause for the query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param array $components
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* @return string
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*/
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protected function compileAnsiOffset(Builder $query, $components)
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{
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// An ORDER BY clause is required to make this offset query work, so if one does
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// not exist we'll just create a dummy clause to trick the database and so it
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// does not complain about the queries for not having an "order by" clause.
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if (empty($components['orders'])) {
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$components['orders'] = 'order by (select 0)';
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}
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// We need to add the row number to the query so we can compare it to the offset
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// and limit values given for the statements. So we will add an expression to
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// the "select" that will give back the row numbers on each of the records.
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$components['columns'] .= $this->compileOver($components['orders']);
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unset($components['orders']);
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if ($this->queryOrderContainsSubquery($query)) {
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$query->bindings = $this->sortBindingsForSubqueryOrderBy($query);
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}
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// Next we need to calculate the constraints that should be placed on the query
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// to get the right offset and limit from our query but if there is no limit
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// set we will just handle the offset only since that is all that matters.
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$sql = $this->concatenate($components);
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return $this->compileTableExpression($sql, $query);
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}
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/**
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* Compile the over statement for a table expression.
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*
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* @param string $orderings
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* @return string
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*/
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protected function compileOver($orderings)
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{
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return ", row_number() over ({$orderings}) as row_num";
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}
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/**
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* Determine if the query's order by clauses contain a subquery.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return bool
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*/
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protected function queryOrderContainsSubquery($query)
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{
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if (! is_array($query->orders)) {
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return false;
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}
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return Arr::first($query->orders, function ($value) {
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return $this->isExpression($value['column'] ?? null);
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}, false) !== false;
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}
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/**
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* Move the order bindings to be after the "select" statement to account for an order by subquery.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return array
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*/
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protected function sortBindingsForSubqueryOrderBy($query)
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{
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return Arr::sort($query->bindings, function ($bindings, $key) {
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return array_search($key, ['select', 'order', 'from', 'join', 'where', 'groupBy', 'having', 'union', 'unionOrder']);
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});
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}
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/**
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* Compile a common table expression for a query.
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*
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* @param string $sql
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* @param \Illuminate\Database\Query\Builder $query
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* @return string
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*/
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protected function compileTableExpression($sql, $query)
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{
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$constraint = $this->compileRowConstraint($query);
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return "select * from ({$sql}) as temp_table where row_num {$constraint} order by row_num";
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}
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/**
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* Compile the limit / offset row constraint for a query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @return string
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*/
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protected function compileRowConstraint($query)
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{
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$start = (int) $query->offset + 1;
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if ($query->limit > 0) {
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$finish = (int) $query->offset + (int) $query->limit;
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return "between {$start} and {$finish}";
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}
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return ">= {$start}";
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}
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/**
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* Compile a delete statement without joins into SQL.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param string $table
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* @param string $where
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* @return string
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*/
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protected function compileDeleteWithoutJoins(Builder $query, $table, $where)
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{
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$sql = parent::compileDeleteWithoutJoins($query, $table, $where);
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return ! is_null($query->limit) && $query->limit > 0 && $query->offset <= 0
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? Str::replaceFirst('delete', 'delete top ('.$query->limit.')', $sql)
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: $sql;
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}
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/**
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* Compile the random statement into SQL.
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*
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* @param string|int $seed
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* @return string
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*/
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public function compileRandom($seed)
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{
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return 'NEWID()';
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}
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/**
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* Compile the "limit" portions of the query.
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*
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* @param \Illuminate\Database\Query\Builder $query
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* @param int $limit
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* @return string
|
||
|
|
*/
|
||
|
|
protected function compileLimit(Builder $query, $limit)
|
||
|
|
{
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile the "offset" portions of the query.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Query\Builder $query
|
||
|
|
* @param int $offset
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function compileOffset(Builder $query, $offset)
|
||
|
|
{
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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 ('.$sql.') as '.$this->wrapTable('temp_table');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile an exists statement into SQL.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Query\Builder $query
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function compileExists(Builder $query)
|
||
|
|
{
|
||
|
|
$existsQuery = clone $query;
|
||
|
|
|
||
|
|
$existsQuery->columns = [];
|
||
|
|
|
||
|
|
return $this->compileSelect($existsQuery->selectRaw('1 [exists]')->limit(1));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile an update statement with joins into SQL.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Query\Builder $query
|
||
|
|
* @param string $table
|
||
|
|
* @param string $columns
|
||
|
|
* @param string $where
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function compileUpdateWithJoins(Builder $query, $table, $columns, $where)
|
||
|
|
{
|
||
|
|
$alias = last(explode(' as ', $table));
|
||
|
|
|
||
|
|
$joins = $this->compileJoins($query, $query->joins);
|
||
|
|
|
||
|
|
return "update {$alias} set {$columns} from {$table} {$joins} {$where}";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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)
|
||
|
|
{
|
||
|
|
$columns = $this->columnize(array_keys(reset($values)));
|
||
|
|
|
||
|
|
$sql = 'merge '.$this->wrapTable($query->from).' ';
|
||
|
|
|
||
|
|
$parameters = collect($values)->map(function ($record) {
|
||
|
|
return '('.$this->parameterize($record).')';
|
||
|
|
})->implode(', ');
|
||
|
|
|
||
|
|
$sql .= 'using (values '.$parameters.') '.$this->wrapTable('laravel_source').' ('.$columns.') ';
|
||
|
|
|
||
|
|
$on = collect($uniqueBy)->map(function ($column) use ($query) {
|
||
|
|
return $this->wrap('laravel_source.'.$column).' = '.$this->wrap($query->from.'.'.$column);
|
||
|
|
})->implode(' and ');
|
||
|
|
|
||
|
|
$sql .= 'on '.$on.' ';
|
||
|
|
|
||
|
|
if ($update) {
|
||
|
|
$update = collect($update)->map(function ($value, $key) {
|
||
|
|
return is_numeric($key)
|
||
|
|
? $this->wrap($value).' = '.$this->wrap('laravel_source.'.$value)
|
||
|
|
: $this->wrap($key).' = '.$this->parameter($value);
|
||
|
|
})->implode(', ');
|
||
|
|
|
||
|
|
$sql .= 'when matched then update set '.$update.' ';
|
||
|
|
}
|
||
|
|
|
||
|
|
$sql .= 'when not matched then insert ('.$columns.') values ('.$columns.');';
|
||
|
|
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepare the bindings for an update statement.
|
||
|
|
*
|
||
|
|
* @param array $bindings
|
||
|
|
* @param array $values
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function prepareBindingsForUpdate(array $bindings, array $values)
|
||
|
|
{
|
||
|
|
$cleanBindings = Arr::except($bindings, 'select');
|
||
|
|
|
||
|
|
return array_values(
|
||
|
|
array_merge($values, Arr::flatten($cleanBindings))
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile the SQL statement to define a savepoint.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function compileSavepoint($name)
|
||
|
|
{
|
||
|
|
return 'SAVE TRANSACTION '.$name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile the SQL statement to execute a savepoint rollback.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function compileSavepointRollBack($name)
|
||
|
|
{
|
||
|
|
return 'ROLLBACK TRANSACTION '.$name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the format for database stored dates.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getDateFormat()
|
||
|
|
{
|
||
|
|
return 'Y-m-d H:i:s.v';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrap a single string in keyword identifiers.
|
||
|
|
*
|
||
|
|
* @param string $value
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function wrapValue($value)
|
||
|
|
{
|
||
|
|
return $value === '*' ? $value : '['.str_replace(']', ']]', $value).']';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrap the given JSON selector.
|
||
|
|
*
|
||
|
|
* @param string $value
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function wrapJsonSelector($value)
|
||
|
|
{
|
||
|
|
[$field, $path] = $this->wrapJsonFieldAndPath($value);
|
||
|
|
|
||
|
|
return 'json_value('.$field.$path.')';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrap the given JSON boolean value.
|
||
|
|
*
|
||
|
|
* @param string $value
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function wrapJsonBooleanValue($value)
|
||
|
|
{
|
||
|
|
return "'".$value."'";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrap a table in keyword identifiers.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Query\Expression|string $table
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function wrapTable($table)
|
||
|
|
{
|
||
|
|
if (! $this->isExpression($table)) {
|
||
|
|
return $this->wrapTableValuedFunction(parent::wrapTable($table));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->getValue($table);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrap a table in keyword identifiers.
|
||
|
|
*
|
||
|
|
* @param string $table
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function wrapTableValuedFunction($table)
|
||
|
|
{
|
||
|
|
if (preg_match('/^(.+?)(\(.*?\))]$/', $table, $matches) === 1) {
|
||
|
|
$table = $matches[1].']'.$matches[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $table;
|
||
|
|
}
|
||
|
|
}
|