Doctrine_manual-1-2-en

Chapter 9: DQL (Doctrine Query Language) 125
// test.php
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9-18
// ...
$q = Doctrine_Query::create()
->select('u.username, p.*')
->from('User u')
->leftJoin('u.Phonenumbers p')
echo $q->getSqlQuery();
The above call to getSql() would output the following SQL query:
SELECT
u.id AS u__id,
u.username AS u__username,
p.id AS p__id,
p.user_id AS p__user_id,
p.phonenumber AS p__phonenumber
FROM user u
LEFT JOIN phonenumber p ON u.id = p.user_id
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9-19
The WHERE clause, if given, indicates the condition or conditions that the records must satisfy
to be selected. where_condition is an expression that evaluates to true for each row to be
selected. The statement selects all rows if there is no WHERE clause.
// test.php
Listing
9-20
// ...
$q = Doctrine_Query::create()
->select('a.name')
->from('Account a')
->where('a.amount > 2000');
echo $q->getSqlQuery();
The above call to getSql() would output the following SQL query:
SELECT
a.id AS a__id,
a.name AS a__name
FROM account a
WHERE a.amount > 2000
Listing
9-21
In the WHERE clause, you can use any of the functions and operators that DQL supports,
except for aggregate (summary) functions. The HAVING clause can be used for narrowing the
results with aggregate functions:
// test.php
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9-22
// ...
$q = Doctrine_Query::create()
->select('u.username')
->from('User u')
->leftJoin('u.Phonenumbers p')
->having('COUNT(p.id) > 3');
echo $q->getSqlQuery();
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