Extract Field
Basics
Extract Field refactoring declares a new field and initializes it with the selected expression. The original expression is replaced with the usage of the field.
Example
Before | After |
---|---|
public static function find($params){
if (isset($params['param_query'])) {
$result = MyDatabase::execute($params['param_query']);
}
}
public static function findAll($params){
if (isset($params['param_query'])) {
$result = MyDatabase::executeAll($params['param_query']);
}
} | public static $query = 'param_query';
public static function find($params){
if (isset($params[self::$query])) {
$result = MyDatabase::execute($params[self::$query]);
}
}
public static function findAll($params){
if(isset($params[self::$query])){
$result = MyDatabase::executeAll($params[self::$query]);
}
} |
Extracting a field using the dialog box
To extract a field using the dialog box
If the Enable in place refactorings checkbox is cleared on the Editor settings, the Extract Field refactoring is performed by means of the introduce field.
- In the editor, select the expression or variable to be replaced with a field, or just place the cursor within such an expression or variable declaration.
- In the main menu, or the context menu of the selection, choose , or press Ctrl+Alt+F.
- In the Expressions pop-up menu, select the expression to be replaced. Note that PhpStorm highlights the selected expression in the editor.
- In the dialog that opens, specify the type and name of the new field.
- To automatically replace all occurrences of the selected expression (if it is found more than once),select the option Replace all occurrences.
- Click OK to create the field.
Last modified: 29 March 2018