"[EMAIL PROTECTED]" wrote : as noted in other threads with the same error:
| the seam code generation does not support composite-id's (yet)
Doh- I searched the forum up and down, but didn't think I was using
composite-id's. (As an aside, I'm using JBoss 4.0.4 CR2, and Seam 1.0 beta2)
Here's the tables I was originally trying to generate from:
CREATE TABLE iplabel
| (
| ip inet,
| idns varchar(256),
| xdns varchar(256),
| sysname text
| );
| CREATE TABLE ipmap
| (
| reference_ip inet,
| ip inet
| );
I guess it doesn't like it when there's no primary key defined either (does it
just try to make all columns into a composite-id in that case?) Any thoughts on
how this will be handled (if at all) by the code generation tool? (There's
unfortunately quite a few legacy schemas out there that weren't designed all
that well- in this case it's looking like I'll be re-writing the schema
anyhow... but you can't always do that)
So, then I created a few test tables:
| CREATE TABLE users
| (
| id bigserial NOT NULL,
| username text NOT NULL,
| "password" text NOT NULL,
| fname text,
| lname text,
| email text,
| CONSTRAINT users_id_pk PRIMARY KEY (id),
| CONSTRAINT username_unq UNIQUE (username)
| );
| CREATE TABLE groups
| (
| id bigserial NOT NULL,
| name text,
| description text,
| CONSTRAINT groups_id_pk PRIMARY KEY (id)
| );
| CREATE TABLE users_groups
| (
| user_id int8 NOT NULL,
| group_id int8 NOT NULL,
| CONSTRAINT fk_group_id FOREIGN KEY (group_id)
| REFERENCES groups (id)
| ON UPDATE NO ACTION ON DELETE CASCADE,
| CONSTRAINT fk_user_id FOREIGN KEY (user_id)
| REFERENCES users (id)
| ON UPDATE NO ACTION ON DELETE CASCADE,
| CONSTRAINT user_group_unq UNIQUE (user_id, group_id)
| );
And sure enough, it generates fine when I take out the user_group table. I'm
sure you've been asked this before, but I don't think I've seen a recent
update- any thoughts on when composite-id's will be included in the generation
tool? (Either way, it's a nice jump-start for applications that need to do a
lot of CRUD ops..)
I was able to build and deploy the app fine, but when I click on any of the
links (search or add new) I get exceptions- the one below happens when clicking
on search:
| javax.servlet.ServletException: Cannot get value for expression
'#{usersFinder.example.id}'
|
org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:51)
|
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
Off to search the forums again...
Thanks for the help- and I'm looking forward to using Seam- it looks like it'll
make life much easier than just Struts and Hibernate...
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3937707#3937707
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3937707
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