Doctrine_manual-1-2-en

Chapter 4: Configuration 33
backtick ` MySQL
double quote "
Oracle
brackets [ or ] Access
Delimited identifiers are known to generally work correctly under the following drivers:
Mssql, Mysql, Oracle, Pgsql, Sqlite and Firebird.
When using the Doctrine_Core::ATTR_QUOTE_IDENTIFIER option, all of the field
identifiers will be automatically quoted in the resulting SQL statements:
// bootstrap.php
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// ...
$conn->setAttribute(Doctrine_Core::ATTR_QUOTE_IDENTIFIER, true);
Will result in a SQL statement that all the field names are quoted with the backtick '`'
operator (in MySQL).
SELECT
*
FROM sometable
WHERE `id` = '123'
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As opposed to:
SELECT
*
FROM sometable
WHERE id = '123'
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Hydration Overwriting
By default Doctrine is configured to overwrite any local changes you have on your objects if
you were to query for some objects which have already been queried for and modified.
$user = Doctrine_Core::getTable('User')->find(1);
$user->username = 'newusername';
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Now I have modified the above object and if I were to query for the same data again, my local
changes would be overwritten.
$user = Doctrine_Core::getTable('User')->find(1);
echo $user->username; // would output original username in database
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You can disable this behavior by using the ATTR_HYDRATE_OVERWRITE attribute:
// bootstrap.php
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// ...
$conn->setAttribute(Doctrine_Core::ATTR_HYDRATE_OVERWRITE, false);
Now if were to run the same test we ran above, the modified username would not be
overwritten.
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