isOldMssql() protected method protected boolean isOldMssql ( )return boolean Whether the version of the MSSQL being used is older than 2012. throws yii\base\InvalidConfigException throws yii\db\Exception

$interactive public property Whether to run the command interactively. public boolean $interactive = true

$includeContext public property If true, context will be included in every message. This is convenient if you log application errors and analyze them with tools like Kibana. public boolean $includeContext = false

export() public method Exports log $messages to a specific destination. Child classes must implement this method. public void export ( )

createColumn() protected method Creates ColumnSchema instance protected yii\db\ColumnSchema createColumn ( $column )$column array

prepareKeys() protected method Prepares the keys associated with the currently available data models. protected array prepareKeys ( $models )$models array The available data models return array The keys

findConstraints() protected method Collects the foreign key column details for the given table. protected void findConstraints ( $table )$table yii\db\TableSchema The table metadata

loadTableSchema() public method Loads the metadata for the specified table. public yii\db\TableSchema|null loadTableSchema ( $name )$name string Table name return yii\db\TableSchema|null Driver dependent table metadata. Null if the table does not exist.

alterColumn() public method Builds a SQL statement for changing the definition of a column. public string alterColumn ( $table, $column, $type )$table string The table whose column is to be changed. The table name will be properly quoted by the method. $column string The name of the column to be changed. The name will be properly quoted by the method. $type string The new column type. The getColumnType() method will be invoked to convert abstract column type (if any) into the physica

loadColumnSchema() protected method Loads the column information into a yii\db\ColumnSchema object. protected yii\db\ColumnSchema loadColumnSchema ( $info )$info array Column information return yii\db\ColumnSchema The column schema object