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DDC-658: Reverse engineering with Oracle (DBDriver and Associations as Identifier) #810
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Originally created by @doctrinebot on GitHub (Jun 27, 2010).
Originally assigned to: @beberlei on GitHub.
Jira issue originally created by user mikaelkael:
I am playing with reverse engineering with Oracle and I have some problems:
My schema:
I obtain "Fatal error: Uncaught exception 'Doctrine\ORM\Mapping\MappingException' with message 'Property "customerId" in "PhoneNumber" was already declared, but it must be declared only once'"
It's because a foreign key is a component of the primary key.
@doctrinebot commented on GitHub (Jun 28, 2010):
Comment created by mikaelkael:
This is the continuation of http://www.doctrine-project.org/jira/browse/DDC-616. Only the schema is different.
@doctrinebot commented on GitHub (Jun 28, 2010):
Comment created by @beberlei:
just for understanding this scenario:
Is this a One-To-One relation and the TABLE_TEST2 "inherits" the primary key from its parent TABLE_TEST1?
If yes, this construct is not yet supported by Doctrine 2, we still need to include an ID-Generator that supports this kind of schema.
@doctrinebot commented on GitHub (Jun 28, 2010):
Comment created by mikaelkael:
Change for a more understandable use case. Note that it's not my real use case and that I work on legacy database on which I can't change the structure.
@doctrinebot commented on GitHub (Jan 1, 2011):
Comment created by @beberlei:
updated the issue topic to get a better grasp of what needs to be done here.
@doctrinebot commented on GitHub (Jun 9, 2011):
Comment created by waldo2188:
I have the same error with Mysql whit the same condition.
@doctrinebot commented on GitHub (Nov 28, 2011):
Comment created by @beberlei:
More details on the work to be done:
The relevant code is in Doctrine/ORM/Mapping/Driver/DatabaseDriver.php only.
The idea is currently many-to-many tables are detected by checking that the table has foreign keys on all the primary key columns (no additional columns!)
Now with the 2.1 feature of foreign key/primary key entities this is not necessarily true anymore. You can have the primary keys being foreign keys BUT have additional columns that are not part of the primary key. This has to be detected.
If a foreign key-primary-key entity is found that has additional columns a ClassMetadata has to be created and the associations have to be created with the "id" => true flag in mapManyToOne().
@doctrinebot commented on GitHub (Dec 11, 2011):
Comment created by scott459:
For what it's worth, I'm getting this error when I have a PK that is a single column and not a FK.
PRIMARY KEY (
id),UNIQUE KEY
cycle*station_id(cycle,station*id),KEY
station*id_idx(station*id),KEY
readings(readings),KEY
source(source),KEY
temperature*min_max(temperature_max,temperature*min),KEY
station*id_cycle(station_id,cycle,updated*at),CONSTRAINT
compiled*1_station_id_stations_idFOREIGN KEY (station*id) REFERENCESstations(id),CONSTRAINT
compiled*1_station_id_stations_id_1FOREIGN KEY (station*id) REFERENCESstations(id) ON DELETE CASCADE) ENGINE=InnoDB AUTO_INCREMENT=160833690 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci