->selectAdd()
->selectAdd() – Add selected columns
Synopsis
void $DB_DataObject->selectAdd
(
string $condition
)
Описание
Adds a selected columns. By default a select query will request all items (eg. SELECT * FROM table), to change this behavior you can first call selectAdd() without any arguments to clear the current request and then add the specific items you require.
You can also set up a default selection query by adding SelectAdd() method calls in the object constructor method (the one with the same name as the class)
Parameter
-
resource $key- table column name
Замечание
This function can not be called statically.
Пример
Using selectAdd()
<?php
$person = new DataObjects_Person;
$person->selectAdd();
$person->selectAdd('id,name');
while ($person->fetch()) {
echo "{$person->id} {$person->name}<BR>";
}
$person = new DataObjects_Person;
$person->selectAdd("DATE_FORMAT(birthday,'%d %m %Y') as birthday_formated ");
$person->id = 12;
$person->find(TRUE);
echo "{$person->name} {$person->birthday_formated}<BR>";
?>
Resulting SQL
SELECT id,name FROM person
SELECT *, DATE_FORMAT(birthday,'%d %m %Y') as birthday_formated FROM person WHERE id=12