protected Schema::createFieldSql($name, $spec)
Create an SQL string for a field to be used in table creation or alteration.
Before passing a field out of a schema definition into this function it has to be processed by _db_process_field().
Parameters
string $name: Name of the field.
array $spec: The field specification, as per the schema data structure format.
File
- core/lib/Drupal/Core/Database/Driver/mysql/Schema.php, line 147
Class
- Schema
- MySQL implementation of \Drupal\Core\Database\Schema.
Namespace
Drupal\Core\Database\Driver\mysql
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | protected function createFieldSql($name, $spec) { $sql = "`" . $name . "` " . $spec['mysql_type']; if (in_array($spec['mysql_type'], $this->mysqlStringTypes)) { if (isset($spec['length'])) { $sql .= '(' . $spec['length'] . ')'; } if (!empty($spec['binary'])) { $sql .= ' BINARY'; } // Note we check for the "type" key here. "mysql_type" is VARCHAR: if (isset($spec['type']) && $spec['type'] == 'varchar_ascii') { $sql .= ' CHARACTER SET ascii COLLATE ascii_general_ci'; } } elseif (isset($spec['precision']) && isset($spec['scale'])) { $sql .= '(' . $spec['precision'] . ', ' . $spec['scale'] . ')'; } if (!empty($spec['unsigned'])) { $sql .= ' unsigned'; } if (isset($spec['not null'])) { if ($spec['not null']) { $sql .= ' NOT NULL'; } else { $sql .= ' NULL'; } } if (!empty($spec['auto_increment'])) { $sql .= ' auto_increment'; } // $spec['default'] can be NULL, so we explicitly check for the key here. if (array_key_exists('default', $spec)) { $sql .= ' DEFAULT ' . $this->escapeDefaultValue($spec['default']); } if (empty($spec['not null']) && !isset($spec['default'])) { $sql .= ' DEFAULT NULL'; } // Add column comment. if (!empty($spec['description'])) { $sql .= ' COMMENT ' . $this->prepareComment($spec['description'], self::COMMENT_MAX_COLUMN); } return $sql;} |
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