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- <?php
- namespace Illuminate\Database\Query\Grammars;
- use Illuminate\Database\Query\Builder;
- use Illuminate\Database\Query\JoinLateralClause;
- use Illuminate\Support\Str;
- class MySqlGrammar extends Grammar
- {
- /**
- * The grammar specific operators.
- *
- * @var string[]
- */
- protected $operators = ['sounds like'];
- /**
- * Add a "where null" clause to the query.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param array $where
- * @return string
- */
- protected function whereNull(Builder $query, $where)
- {
- $columnValue = (string) $this->getValue($where['column']);
- if ($this->isJsonSelector($columnValue)) {
- [$field, $path] = $this->wrapJsonFieldAndPath($columnValue);
- return '(json_extract('.$field.$path.') is null OR json_type(json_extract('.$field.$path.')) = \'NULL\')';
- }
- return parent::whereNull($query, $where);
- }
- /**
- * Add a "where not null" clause to the query.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param array $where
- * @return string
- */
- protected function whereNotNull(Builder $query, $where)
- {
- $columnValue = (string) $this->getValue($where['column']);
- if ($this->isJsonSelector($columnValue)) {
- [$field, $path] = $this->wrapJsonFieldAndPath($columnValue);
- return '(json_extract('.$field.$path.') is not null AND json_type(json_extract('.$field.$path.')) != \'NULL\')';
- }
- return parent::whereNotNull($query, $where);
- }
- /**
- * Compile a "where fulltext" clause.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param array $where
- * @return string
- */
- public function whereFullText(Builder $query, $where)
- {
- $columns = $this->columnize($where['columns']);
- $value = $this->parameter($where['value']);
- $mode = ($where['options']['mode'] ?? []) === 'boolean'
- ? ' in boolean mode'
- : ' in natural language mode';
- $expanded = ($where['options']['expanded'] ?? []) && ($where['options']['mode'] ?? []) !== 'boolean'
- ? ' with query expansion'
- : '';
- return "match ({$columns}) against (".$value."{$mode}{$expanded})";
- }
- /**
- * 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, $indexHint)
- {
- return match ($indexHint->type) {
- 'hint' => "use index ({$indexHint->index})",
- 'force' => "force index ({$indexHint->index})",
- default => "ignore index ({$indexHint->index})",
- };
- }
- /**
- * Compile a group limit clause.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @return string
- */
- protected function compileGroupLimit(Builder $query)
- {
- return $this->useLegacyGroupLimit($query)
- ? $this->compileLegacyGroupLimit($query)
- : parent::compileGroupLimit($query);
- }
- /**
- * Determine whether to use a legacy group limit clause for MySQL < 8.0.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @return bool
- */
- public function useLegacyGroupLimit(Builder $query)
- {
- $version = $query->getConnection()->getServerVersion();
- return ! $query->getConnection()->isMaria() && version_compare($version, '8.0.11') < 0;
- }
- /**
- * Compile a group limit clause for MySQL < 8.0.
- *
- * Derived from https://softonsofa.com/tweaking-eloquent-relations-how-to-get-n-related-models-per-parent/.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @return string
- */
- protected function compileLegacyGroupLimit(Builder $query)
- {
- $limit = (int) $query->groupLimit['value'];
- $offset = $query->offset;
- if (isset($offset)) {
- $offset = (int) $offset;
- $limit += $offset;
- $query->offset = null;
- }
- $column = last(explode('.', $query->groupLimit['column']));
- $column = $this->wrap($column);
- $partition = ', @laravel_row := if(@laravel_group = '.$column.', @laravel_row + 1, 1) as `laravel_row`';
- $partition .= ', @laravel_group := '.$column;
- $orders = (array) $query->orders;
- array_unshift($orders, [
- 'column' => $query->groupLimit['column'],
- 'direction' => 'asc',
- ]);
- $query->orders = $orders;
- $components = $this->compileComponents($query);
- $sql = $this->concatenate($components);
- $from = '(select @laravel_row := 0, @laravel_group := 0) as `laravel_vars`, ('.$sql.') as `laravel_table`';
- $sql = 'select `laravel_table`.*'.$partition.' from '.$from.' having `laravel_row` <= '.$limit;
- if (isset($offset)) {
- $sql .= ' and `laravel_row` > '.$offset;
- }
- return $sql.' order by `laravel_row`';
- }
- /**
- * 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 ignore', $this->compileInsert($query, $values));
- }
- /**
- * Compile an insert ignore statement using a subquery into SQL.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param array $columns
- * @param string $sql
- * @return string
- */
- public function compileInsertOrIgnoreUsing(Builder $query, array $columns, string $sql)
- {
- return Str::replaceFirst('insert', 'insert ignore', $this->compileInsertUsing($query, $columns, $sql));
- }
- /**
- * Compile a "JSON contains" statement into SQL.
- *
- * @param string $column
- * @param string $value
- * @return string
- */
- protected function compileJsonContains($column, $value)
- {
- [$field, $path] = $this->wrapJsonFieldAndPath($column);
- return 'json_contains('.$field.', '.$value.$path.')';
- }
- /**
- * Compile a "JSON overlaps" statement into SQL.
- *
- * @param string $column
- * @param string $value
- * @return string
- */
- protected function compileJsonOverlaps($column, $value)
- {
- [$field, $path] = $this->wrapJsonFieldAndPath($column);
- return 'json_overlaps('.$field.', '.$value.$path.')';
- }
- /**
- * Compile a "JSON contains key" statement into SQL.
- *
- * @param string $column
- * @return string
- */
- protected function compileJsonContainsKey($column)
- {
- [$field, $path] = $this->wrapJsonFieldAndPath($column);
- return 'ifnull(json_contains_path('.$field.', \'one\''.$path.'), 0)';
- }
- /**
- * 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_length('.$field.$path.') '.$operator.' '.$value;
- }
- /**
- * Compile a "JSON value cast" statement into SQL.
- *
- * @param string $value
- * @return string
- */
- public function compileJsonValueCast($value)
- {
- return 'cast('.$value.' as json)';
- }
- /**
- * Compile the random statement into SQL.
- *
- * @param string|int $seed
- * @return string
- */
- public function compileRandom($seed)
- {
- return 'RAND('.$seed.')';
- }
- /**
- * Compile the lock into SQL.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param bool|string $value
- * @return string
- */
- protected function compileLock(Builder $query, $value)
- {
- if (! is_string($value)) {
- return $value ? 'for update' : 'lock in share mode';
- }
- return $value;
- }
- /**
- * Compile an insert statement into SQL.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param array $values
- * @return string
- */
- public function compileInsert(Builder $query, array $values)
- {
- if (empty($values)) {
- $values = [[]];
- }
- return parent::compileInsert($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 $values)
- {
- return collect($values)->map(function ($value, $key) {
- if ($this->isJsonSelector($key)) {
- return $this->compileJsonUpdateColumn($key, $value);
- }
- return $this->wrap($key).' = '.$this->parameter($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)
- {
- $useUpsertAlias = $query->connection->getConfig('use_upsert_alias');
- $sql = $this->compileInsert($query, $values);
- if ($useUpsertAlias) {
- $sql .= ' as laravel_upsert_alias';
- }
- $sql .= ' on duplicate key update ';
- $columns = collect($update)->map(function ($value, $key) use ($useUpsertAlias) {
- if (! is_numeric($key)) {
- return $this->wrap($key).' = '.$this->parameter($value);
- }
- return $useUpsertAlias
- ? $this->wrap($value).' = '.$this->wrap('laravel_upsert_alias').'.'.$this->wrap($value)
- : $this->wrap($value).' = values('.$this->wrap($value).')';
- })->implode(', ');
- return $sql.$columns;
- }
- /**
- * Compile a "lateral join" clause.
- *
- * @param \Illuminate\Database\Query\JoinLateralClause $join
- * @param string $expression
- * @return string
- */
- public function compileJoinLateral(JoinLateralClause $join, string $expression): string
- {
- return trim("{$join->type} join lateral {$expression} on true");
- }
- /**
- * Prepare a JSON column being updated using the JSON_SET function.
- *
- * @param string $key
- * @param mixed $value
- * @return string
- */
- protected function compileJsonUpdateColumn($key, $value)
- {
- if (is_bool($value)) {
- $value = $value ? 'true' : 'false';
- } elseif (is_array($value)) {
- $value = 'cast(? as json)';
- } else {
- $value = $this->parameter($value);
- }
- [$field, $path] = $this->wrapJsonFieldAndPath($key);
- return "{$field} = json_set({$field}{$path}, {$value})";
- }
- /**
- * Compile an update statement without joins into SQL.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param string $table
- * @param string $columns
- * @param string $where
- * @return string
- */
- protected function compileUpdateWithoutJoins(Builder $query, $table, $columns, $where)
- {
- $sql = parent::compileUpdateWithoutJoins($query, $table, $columns, $where);
- if (! empty($query->orders)) {
- $sql .= ' '.$this->compileOrders($query, $query->orders);
- }
- if (isset($query->limit)) {
- $sql .= ' '.$this->compileLimit($query, $query->limit);
- }
- return $sql;
- }
- /**
- * Prepare the bindings for an update statement.
- *
- * Booleans, integers, and doubles are inserted into JSON updates as raw values.
- *
- * @param array $bindings
- * @param array $values
- * @return array
- */
- public function prepareBindingsForUpdate(array $bindings, array $values)
- {
- $values = collect($values)->reject(function ($value, $column) {
- return $this->isJsonSelector($column) && is_bool($value);
- })->map(function ($value) {
- return is_array($value) ? json_encode($value) : $value;
- })->all();
- return parent::prepareBindingsForUpdate($bindings, $values);
- }
- /**
- * Compile a delete query that does not use joins.
- *
- * @param \Illuminate\Database\Query\Builder $query
- * @param string $table
- * @param string $where
- * @return string
- */
- protected function compileDeleteWithoutJoins(Builder $query, $table, $where)
- {
- $sql = parent::compileDeleteWithoutJoins($query, $table, $where);
- // When using MySQL, delete statements may contain order by statements and limits
- // so we will compile both of those here. Once we have finished compiling this
- // we will return the completed SQL statement so it will be executed for us.
- if (! empty($query->orders)) {
- $sql .= ' '.$this->compileOrders($query, $query->orders);
- }
- if (isset($query->limit)) {
- $sql .= ' '.$this->compileLimit($query, $query->limit);
- }
- return $sql;
- }
- /**
- * 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_unquote(json_extract('.$field.$path.'))';
- }
- /**
- * Wrap the given JSON selector for boolean values.
- *
- * @param string $value
- * @return string
- */
- protected function wrapJsonBooleanSelector($value)
- {
- [$field, $path] = $this->wrapJsonFieldAndPath($value);
- return 'json_extract('.$field.$path.')';
- }
- }
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