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Support foreign key #14

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Support foreign key #14

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7a947c4
Was added foreign key support.
robson-gupy Dec 16, 2013
57cb801
Doc
robson-gupy Dec 16, 2013
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3 changes: 3 additions & 0 deletions README.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,9 @@ rename_column($table_name, $column_name, $new_column_name)
change_column($table_name, $column_name, $params)
remove_column($table_name, $column_name)

add_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name)
remove_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name)

add_index($table_name, $index_name, $columns, $index_type = 'normal')
remove_index($table_name, $index_name)
```
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26 changes: 26 additions & 0 deletions classes/Drivers/Driver.php
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Expand Up @@ -134,6 +134,32 @@ abstract public function change_column($table_name, $column_name, $params);
*/
abstract public function remove_column($table_name, $column_name);

/**
* Add a foreign key to a table
*
* @example add_foreign_key ( "client", "city_id", "city", "id");
*
* @param string Name of the table
* @param string Name of the column
* @param string Name of referenced table
* @param string Name of referenced column
* @return boll Returns true if no errors
*/
abstract public function add_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name);

/**
* Remove a foreign key from a table
*
* @example remove_foreign_key ( "client", "city_id", "city", "id");
*
* @param string Name of the table
* @param string Name of the column
* @param string Name of referenced table
* @param string Name of referenced column
* @return boll Returns true if no errors
*/
abstract public function remove_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name);

/**
* Add an index
*
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12 changes: 12 additions & 0 deletions classes/Drivers/Mysql.php
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Expand Up @@ -91,6 +91,18 @@ public function remove_column($table_name, $column_name)
return $this->run_query("ALTER TABLE $table_name DROP COLUMN $column_name ;");
}

public function add_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name)
{
$fk = 'fk'.$table_name.$column_name.$referenced_table_name.$referenced_column_name;
return $this->run_query("ALTER TABLE $table_name ADD CONSTRAINT $fk "
."FOREIGN KEY ( `$column_name` ) REFERENCES `$referenced_table_name` ( `$referenced_column_name` ); ");
}

public function remove_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name){
$fk = 'fk'.$table_name.$column_name.$referenced_table_name.$referenced_column_name;
return $this->run_query("ALTER TABLE $table_name DROP FOREIGN KEY $fk;");
}

public function add_index($table_name, $index_name, $columns, $index_type = 'normal')
{
switch ($index_type)
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34 changes: 34 additions & 0 deletions classes/Migration.php
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Expand Up @@ -199,6 +199,40 @@ public function remove_column($table_name, $column_name)
return $ret;
}

/**
* Add a foreign key to a table
*
* @example add_foreign_key ( "client", "city_id", "city", "id");
*
* @param string Name of the table
* @param string Name of the column
* @param string Name of referenced table
* @param string Name of referenced column
* @return boll Returns true if no errors
*/
public function add_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name)
{
$ret = $this->driver->add_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name);
return $ret;
}

/**
* Add a foreign key to a table
*
* @example remove_foreign_key ( "client", "city_id", "city", "id");
*
* @param string Name of the table
* @param string Name of the column
* @param string Name of referenced table
* @param string Name of referenced column
* @return boll Returns true if no errors
*/
public function remove_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name)
{
$ret = $this->driver->remove_foreign_key($table_name, $column_name, $referenced_table_name, $referenced_column_name);
return $ret;
}

/**
* Add an index
*
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