653 lines
15 KiB
PHP
Executable File
653 lines
15 KiB
PHP
Executable File
<?php namespace Illuminate\Database\Schema\Grammars;
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use Illuminate\Support\Fluent;
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use Illuminate\Database\Connection;
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use Illuminate\Database\Schema\Blueprint;
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class MySqlGrammar extends Grammar {
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/**
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* The possible column modifiers.
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*
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* @var array
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*/
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protected $modifiers = array('Unsigned', 'Nullable', 'Default', 'Increment', 'Comment', 'After');
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/**
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* The possible column serials.
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*
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* @var array
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*/
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protected $serials = array('bigInteger', 'integer', 'mediumInteger', 'smallInteger', 'tinyInteger');
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/**
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* Compile the query to determine the list of tables.
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*
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* @return string
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*/
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public function compileTableExists()
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{
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return 'select * from information_schema.tables where table_schema = ? and table_name = ?';
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}
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/**
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* Compile the query to determine the list of columns.
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*
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* @return string
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*/
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public function compileColumnExists()
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{
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return "select column_name from information_schema.columns where table_schema = ? and table_name = ?";
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}
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/**
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* Compile a create table command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @param \Illuminate\Database\Connection $connection
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* @return string
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*/
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public function compileCreate(Blueprint $blueprint, Fluent $command, Connection $connection)
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{
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$columns = implode(', ', $this->getColumns($blueprint));
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$sql = 'create table '.$this->wrapTable($blueprint)." ($columns)";
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// Once we have the primary SQL, we can add the encoding option to the SQL for
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// the table. Then, we can check if a storage engine has been supplied for
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// the table. If so, we will add the engine declaration to the SQL query.
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$sql = $this->compileCreateEncoding($sql, $connection);
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if (isset($blueprint->engine))
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{
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$sql .= ' engine = '.$blueprint->engine;
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}
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return $sql;
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}
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/**
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* Append the character set specifications to a command.
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*
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* @param string $sql
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* @param \Illuminate\Database\Connection $connection
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* @return string
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*/
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protected function compileCreateEncoding($sql, Connection $connection)
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{
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if ( ! is_null($charset = $connection->getConfig('charset')))
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{
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$sql .= ' default character set '.$charset;
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}
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if ( ! is_null($collation = $connection->getConfig('collation')))
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{
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$sql .= ' collate '.$collation;
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}
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return $sql;
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}
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/**
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* Compile an add column command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileAdd(Blueprint $blueprint, Fluent $command)
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{
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$table = $this->wrapTable($blueprint);
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$columns = $this->prefixArray('add', $this->getColumns($blueprint));
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return 'alter table '.$table.' '.implode(', ', $columns);
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}
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/**
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* Compile a primary key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compilePrimary(Blueprint $blueprint, Fluent $command)
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{
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$command->name(null);
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return $this->compileKey($blueprint, $command, 'primary key');
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}
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/**
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* Compile a unique key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileUnique(Blueprint $blueprint, Fluent $command)
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{
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return $this->compileKey($blueprint, $command, 'unique');
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}
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/**
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* Compile a plain index key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileIndex(Blueprint $blueprint, Fluent $command)
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{
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return $this->compileKey($blueprint, $command, 'index');
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}
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/**
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* Compile an index creation command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @param string $type
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* @return string
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*/
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protected function compileKey(Blueprint $blueprint, Fluent $command, $type)
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{
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$columns = $this->columnize($command->columns);
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$table = $this->wrapTable($blueprint);
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return "alter table {$table} add {$type} {$command->index}($columns)";
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}
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/**
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* Compile a drop table command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDrop(Blueprint $blueprint, Fluent $command)
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{
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return 'drop table '.$this->wrapTable($blueprint);
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}
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/**
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* Compile a drop table (if exists) command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropIfExists(Blueprint $blueprint, Fluent $command)
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{
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return 'drop table if exists '.$this->wrapTable($blueprint);
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}
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/**
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* Compile a drop column command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropColumn(Blueprint $blueprint, Fluent $command)
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{
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$columns = $this->prefixArray('drop', $this->wrapArray($command->columns));
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$table = $this->wrapTable($blueprint);
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return 'alter table '.$table.' '.implode(', ', $columns);
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}
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/**
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* Compile a drop primary key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropPrimary(Blueprint $blueprint, Fluent $command)
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{
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return 'alter table '.$this->wrapTable($blueprint).' drop primary key';
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}
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/**
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* Compile a drop unique key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropUnique(Blueprint $blueprint, Fluent $command)
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{
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$table = $this->wrapTable($blueprint);
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return "alter table {$table} drop index {$command->index}";
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}
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/**
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* Compile a drop index command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropIndex(Blueprint $blueprint, Fluent $command)
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{
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$table = $this->wrapTable($blueprint);
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return "alter table {$table} drop index {$command->index}";
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}
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/**
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* Compile a drop foreign key command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileDropForeign(Blueprint $blueprint, Fluent $command)
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{
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$table = $this->wrapTable($blueprint);
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return "alter table {$table} drop foreign key {$command->index}";
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}
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/**
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* Compile a rename table command.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $command
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* @return string
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*/
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public function compileRename(Blueprint $blueprint, Fluent $command)
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{
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$from = $this->wrapTable($blueprint);
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return "rename table {$from} to ".$this->wrapTable($command->to);
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}
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/**
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* Create the column definition for a char type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeChar(Fluent $column)
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{
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return "char({$column->length})";
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}
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/**
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* Create the column definition for a string type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeString(Fluent $column)
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{
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return "varchar({$column->length})";
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}
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/**
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* Create the column definition for a text type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeText(Fluent $column)
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{
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return 'text';
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}
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/**
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* Create the column definition for a medium text type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeMediumText(Fluent $column)
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{
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return 'mediumtext';
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}
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/**
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* Create the column definition for a long text type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeLongText(Fluent $column)
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{
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return 'longtext';
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}
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/**
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* Create the column definition for a big integer type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeBigInteger(Fluent $column)
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{
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return 'bigint';
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}
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/**
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* Create the column definition for a integer type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeInteger(Fluent $column)
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{
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return 'int';
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}
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/**
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* Create the column definition for a medium integer type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeMediumInteger(Fluent $column)
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{
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return 'mediumint';
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}
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/**
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* Create the column definition for a tiny integer type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeTinyInteger(Fluent $column)
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{
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return 'tinyint';
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}
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/**
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* Create the column definition for a small integer type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeSmallInteger(Fluent $column)
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{
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return 'smallint';
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}
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/**
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* Create the column definition for a float type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeFloat(Fluent $column)
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{
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return $this->typeDouble($column);
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}
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/**
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* Create the column definition for a double type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeDouble(Fluent $column)
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{
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if ($column->total && $column->places)
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{
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return "double({$column->total}, {$column->places})";
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}
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return 'double';
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}
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/**
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* Create the column definition for a decimal type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeDecimal(Fluent $column)
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{
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return "decimal({$column->total}, {$column->places})";
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}
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/**
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* Create the column definition for a boolean type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeBoolean(Fluent $column)
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{
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return 'tinyint(1)';
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}
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/**
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* Create the column definition for an enum type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeEnum(Fluent $column)
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{
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return "enum('".implode("', '", $column->allowed)."')";
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}
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/**
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* Create the column definition for a json type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeJson(Fluent $column)
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{
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return 'text';
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}
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/**
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* Create the column definition for a jsonb type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeJsonb(Fluent $column)
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{
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return "text";
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}
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/**
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* Create the column definition for a date type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeDate(Fluent $column)
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{
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return 'date';
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}
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/**
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* Create the column definition for a date-time type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeDateTime(Fluent $column)
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{
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return 'datetime';
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}
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/**
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* Create the column definition for a date-time type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeDateTimeTz(Fluent $column)
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{
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return 'datetime';
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}
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/**
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* Create the column definition for a time type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeTime(Fluent $column)
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{
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return 'time';
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}
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/**
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* Create the column definition for a time type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeTimeTz(Fluent $column)
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{
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return 'time';
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}
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/**
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* Create the column definition for a timestamp type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeTimestamp(Fluent $column)
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{
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if ( ! $column->nullable) return 'timestamp default 0';
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return 'timestamp';
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}
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/**
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* Create the column definition for a timestamp type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeTimestampTz(Fluent $column)
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{
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if ( ! $column->nullable) return 'timestamp default 0';
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return 'timestamp';
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}
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/**
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* Create the column definition for a binary type.
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*
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* @param \Illuminate\Support\Fluent $column
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* @return string
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*/
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protected function typeBinary(Fluent $column)
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{
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return 'blob';
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}
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/**
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* Get the SQL for an unsigned column modifier.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $column
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* @return string|null
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*/
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protected function modifyUnsigned(Blueprint $blueprint, Fluent $column)
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{
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if ($column->unsigned) return ' unsigned';
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}
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/**
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* Get the SQL for a nullable column modifier.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $column
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* @return string|null
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*/
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protected function modifyNullable(Blueprint $blueprint, Fluent $column)
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{
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return $column->nullable ? ' null' : ' not null';
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}
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/**
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* Get the SQL for a default column modifier.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $column
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* @return string|null
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*/
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protected function modifyDefault(Blueprint $blueprint, Fluent $column)
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{
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if ( ! is_null($column->default))
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{
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return " default ".$this->getDefaultValue($column->default);
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}
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}
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/**
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* Get the SQL for an auto-increment column modifier.
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*
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* @param \Illuminate\Database\Schema\Blueprint $blueprint
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* @param \Illuminate\Support\Fluent $column
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* @return string|null
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*/
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protected function modifyIncrement(Blueprint $blueprint, Fluent $column)
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{
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if (in_array($column->type, $this->serials) && $column->autoIncrement)
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{
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return ' auto_increment primary key';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the SQL for an "after" column modifier.
|
|
*
|
|
* @param \Illuminate\Database\Schema\Blueprint $blueprint
|
|
* @param \Illuminate\Support\Fluent $column
|
|
* @return string|null
|
|
*/
|
|
protected function modifyAfter(Blueprint $blueprint, Fluent $column)
|
|
{
|
|
if ( ! is_null($column->after))
|
|
{
|
|
return ' after '.$this->wrap($column->after);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the SQL for an "comment" column modifier.
|
|
*
|
|
* @param \Illuminate\Database\Schema\Blueprint $blueprint
|
|
* @param \Illuminate\Support\Fluent $column
|
|
* @return string|null
|
|
*/
|
|
protected function modifyComment(Blueprint $blueprint, Fluent $column)
|
|
{
|
|
if ( ! is_null($column->comment))
|
|
{
|
|
return ' comment "'.$column->comment.'"';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wrap a single string in keyword identifiers.
|
|
*
|
|
* @param string $value
|
|
* @return string
|
|
*/
|
|
protected function wrapValue($value)
|
|
{
|
|
if ($value === '*') return $value;
|
|
|
|
return '`'.str_replace('`', '``', $value).'`';
|
|
}
|
|
|
|
}
|