545 lines
12 KiB
PHP
Executable File
545 lines
12 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\Schema\Blueprint;
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class PostgresGrammar 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('Increment', 'Nullable', 'Default');
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/**
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* The columns available as 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 if a table exists.
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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_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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* @param string $table
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* @return string
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*/
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public function compileColumnExists($table)
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{
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return "select column_name from information_schema.columns where table_name = '$table'";
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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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* @return string
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*/
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public function compileCreate(Blueprint $blueprint, Fluent $command)
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{
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$columns = implode(', ', $this->getColumns($blueprint));
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return 'create table '.$this->wrapTable($blueprint)." ($columns)";
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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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* @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 column', $this->getColumns($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 $command)
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{
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$columns = $this->columnize($command->columns);
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return 'alter table '.$this->wrapTable($blueprint)." add primary key ({$columns})";
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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 $command)
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{
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$table = $this->wrapTable($blueprint);
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$columns = $this->columnize($command->columns);
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return "alter table $table add constraint {$command->index} unique ($columns)";
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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 $command)
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{
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$columns = $this->columnize($command->columns);
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return "create index {$command->index} on ".$this->wrapTable($blueprint)." ({$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 column', $this->wrapArray($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 $command)
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{
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$table = $blueprint->getTable();
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return 'alter table '.$this->wrapTable($blueprint)." drop constraint {$table}_pkey";
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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 {$table} drop constraint {$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 $command)
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{
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return "drop index {$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 {$table} drop constraint {$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 "alter table {$from} rename to ".$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 'text';
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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 'text';
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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 $column->autoIncrement ? 'serial' : 'integer';
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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 $column->autoIncrement ? 'bigserial' : 'bigint';
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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 $column->autoIncrement ? 'serial' : 'integer';
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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 $column->autoIncrement ? 'smallserial' : 'smallint';
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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 $column->autoIncrement ? 'smallserial' : '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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return 'double precision';
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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 'boolean';
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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 $column)
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{
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$allowed = array_map(function($a) { return "'".$a."'"; }, $column->allowed);
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return "varchar(255) check (\"{$column->name}\" in (".implode(', ', $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 "json";
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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 "jsonb";
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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 'timestamp(0) without time zone';
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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 'timestamp(0) with time zone';
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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(0) without time zone';
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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(0) with time zone';
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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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return 'timestamp(0) without time zone';
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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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return 'timestamp(0) with time zone';
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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 'bytea';
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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 ' primary key';
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}
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}
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}
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