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Re: [propel] Many-to-Many Relationship Problem

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Author hlellelid
Full name Hans Lellelid
Date 2004-04-12 11:53:52 PDT
Message Hi Matt,

Yes, I believe this is a known issue (and in the bug tracker for me to
tackle). I believe the error you got had something to do with lack of
indexes on the fkey constraints, correct? This seems to be a mysql/innodb
issue -- well, not an issue, just a difference between mysql and other dbs
that use fkeys. This should be no problem to fix, since we have
individual templates for all the db systems. I just haven't done it yet
:) I think there's even some code on the dev list.... I'll try to get
this done ASAP.

If I'm wrong about the problem, let me know.

Thanks,
Hans

> Hello,
>
> I have never used Foreign Keys before and on Saturday I found a
> problem. I'm not sure if there is a problem in propel or maybe I missed
> something in my schema file. The schema is attached below.
>
> I created the first query after seeing a working example in the mysql
> manual.
>
> The following CREATE TABLE works:
> CREATE TABLE account_priv_ref(
>
> account INTEGER NOT NULL ,
>
> privilege INTEGER NOT NULL ,
>
> PRIMARY KEY(account,privilege),
> INDEX(account),
> FOREIGN KEY (account) REFERENCES account (id),
> INDEX(privilege),
> FOREIGN KEY (privilege) REFERENCES privilege (id)) Type=InnoDB;
>
> This query was created by the propel build file.
> This CREATE TABLE fails: (errno: 150 [foreign-key problem])
> CREATE TABLE account_priv_ref(
>
> account INTEGER NOT NULL ,
>
> privilege INTEGER NOT NULL ,
>
> PRIMARY KEY(account,privilege),
> FOREIGN KEY (account) REFERENCES account (id),
> FOREIGN KEY (privilege) REFERENCES privilege (id)) Type=InnoDB;
>
> Here are the other two related tables:
> CREATE TABLE account(
>
> id INTEGER NOT NULL ,
>
> firstName VARCHAR(30) NOT NULL ,
>
> lastName VARCHAR(30) NOT NULL ,
>
> email VARCHAR(100) ,
>
> username VARCHAR(30) NOT NULL ,
>
> password VARCHAR(30) NOT NULL ,
>
> externalId VARCHAR(30) ,
>
> PRIMARY KEY(id)) Type=InnoDB;
>
> CREATE TABLE privilege(
>
> id INTEGER NOT NULL ,
>
> name VARCHAR(50) NOT NULL ,
>
> namepsace VARCHAR(200) NOT NULL ,
>
> PRIMARY KEY(id)) Type=InnoDB;
>
> Mysql version is 4.1.0-max-alpha, binary distribution, on freebsd 4.9.
>
> Schema
> ---
> <?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
> <!DOCTYPE database SYSTEM "../dtd/database.dtd">
>
> <database name="athena" defaultIdMethod="native">
> <table name="account" description="User Table">
> <column name="id" required="true" primaryKey="true" type="INTEGER"
> description="id" />
> <column name="firstName" required="true" type="VARCHAR" size="30"
> description="First Name of User" />
> <column name="lastName" required="true" type="VARCHAR" size="30"
> description="Last Name of User" />
> <column name="email" required="false" type="VARCHAR" size="100"
> description="Email Address of User" />
> <column name="username" required="true" type="VARCHAR" size="30"
> description="Account username" />
> <column name="password" required="true" type="VARCHAR" size="30"
> description="Account password" />
> <column name="externalId" required="false" type="VARCHAR" size="30"
> description="External Account Id" />
> </table>
>
> <table name="privilege" description="List of all Privileges">
> <column name="id" required="true" primaryKey="true" type="INTEGER"
> description="id" />
> <column name="name" required="true" type="VARCHAR" size="50"
> description="Name of Privilege" />
> <column name="namepsace" required="true" type="VARCHAR" size="200"
> description="Namespace the privilege resides in" />
> </table>
>
> <table name="account_priv_ref" description="Maps Accounts to Available
> Privileges" />
> <column name="account" type="INTEGER" required="true" primaryKey="true"
> />
> <column name="privilege" type="INTEGER" required="true"
> primaryKey="true" />
> <foreign-key foreignTable="account">
> <reference local="account" foreign="id"/>
> </foreign-key>
> <foreign-key foreignTable="privilege">
> <reference local="privilege" foreign="id"/>
> </foreign-key>
> </table>
>
> </database>
>
> Thanks,
>
> Matt


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[propel] Syntax error in the manual. matthewh Matthew Hershberger 2004-04-09 07:10:13 PDT
     Re: [propel] Syntax error in the manual. hlellelid Hans Lellelid 2004-04-09 07:20:30 PDT
         Re: [propel] Syntax error in the manual. matthewh Matthew Hershberger 2004-04-09 09:46:16 PDT
             Re: [propel] Syntax error in the manual. hlellelid Hans Lellelid 2004-04-09 12:05:36 PDT
                 [propel] Many-to-Many Relationship Problem matthewh Matthew Hershberger 2004-04-12 10:30:16 PDT
                     Re: [propel] Many-to-Many Relationship Problem hlellelid Hans Lellelid 2004-04-12 11:53:52 PDT
                         Re: [propel] Many-to-Many Relationship Problem matthewh Matthew Hershberger 2004-04-12 12:20:37 PDT
                             RE: [propel] Many-to-Many Relationship Problem "Denny H dot Shimkoski" <dhs at hamfish dot org> "Denny H dot Shimkoski" <dhs at hamfish dot org> 2004-04-12 12:15:32 PDT
                                 RE: [propel] Many-to-Many Relationship Problem hlellelid Hans Lellelid 2004-04-12 12:31:33 PDT
                             [propel] Many-to-Many Relationship Problem Fix matthewh Matthew Hershberger 2004-04-12 12:31:19 PDT
                                 Re: [propel] Many-to-Many Relationship Problem Fix hlellelid Hans Lellelid 2004-04-12 12:34:14 PDT
                                     RE: [propel] Many-to-Many Relationship Problem "Denny H dot Shimkoski" <dhs at hamfish dot org> "Denny H dot Shimkoski" <dhs at hamfish dot org> 2004-04-12 12:27:38 PDT
                                 [propel] Fix applied -- Re: [propel] Many-to-Many Relationship Problem Fix hlellelid Hans Lellelid 2004-04-12 12:42:38 PDT
                                     [propel] Duplicate primaryKey in column does not through error until insert-sql matthewh Matthew Hershberger 2004-04-12 13:16:02 PDT
                                         Re: [propel] Duplicate primaryKey in column does not through error until insert-sql hlellelid Hans Lellelid 2004-04-12 13:25:27 PDT
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