Commit e647cdbb authored by zYne's avatar zYne

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--no commit message
parent 4eee98d5
...@@ -10,32 +10,36 @@ When compared to using raw SQL, DQL has several benefits: ...@@ -10,32 +10,36 @@ When compared to using raw SQL, DQL has several benefits:
If the power of DQL isn't enough, you should consider using the rawSql API for object population. If the power of DQL isn't enough, you should consider using the rawSql API for object population.
You may already be familiar with the following syntax:
<code type="php"> <code type="php">
// DO NOT USE THE FOLLOWING CODE // DO NOT USE THE FOLLOWING CODE
// (using many sql queries for object population): // (uses many sql queries for object population)
$users = $conn->getTable('User')->findAll(); $users = $conn->getTable('User')->findAll();
foreach($users as $user) { foreach($users as $user) {
print $user->name." print $user->name . ' has phonenumbers: ';
";
foreach($user->Phonenumber as $phonenumber) { foreach($user->Phonenumber as $phonenumber) {
print $phonenumber." print $phonenumber . ' ';
";
} }
} }
<code>
However you should not use it. Above is the same behaviour implemented much more efficiently:
// same thing implemented much more efficiently: <code type="php">
// same thing implemented much more efficiently:
// (using only one sql query for object population) // (using only one sql query for object population)
$users = $conn->query("FROM User.Phonenumber"); $users = $conn->query('FROM User u LEFT JOIN u.Phonenumber p');
foreach($users as $user) { foreach($users as $user) {
print $user->name." print $user->name . ' has phonenumbers: ';
";
foreach($user->Phonenumber as $phonenumber) { foreach($user->Phonenumber as $phonenumber) {
print $phonenumber." print $phonenumber . ' ';
";
} }
} }
</code> </code>
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