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From "Jun Bondoy" <dvbon...@gmail.com>
Subject Re: help on relationship
Date Thu, 25 Jan 2007 06:05:17 GMT
Thank you all for the help...im having a good grip already with
Cayenne..just confusing at first..

Best Regards
jun

On 1/23/07, Malcolm Edgar <malcolm.edgar@gmail.com> wrote:
>
> Hi All,
>
> I think Jun has sorted out this issue. I believe he was doing
> something strange in a service/dao class which resulted in inserts new
> objects with the same PK as an existing object.
>
> regards Malcolm Edgar
>
> On 1/23/07, Michael Gentry <blacknext@gmail.com> wrote:
> > I'm not at all familiar with Click or the CayenneForm class it
> > provides.  A quick Google search lead me to this:
> >
> > * Fixed CayenneForm duplicate insert bug. This issue was identified by
> > Bob Schellink [63].  (Version 0.19 - 8th April 2006)
> >
> > Are you using at least version 0.19 of Click?  I did look at the
> > CayenneForm JavaDoc page and it doesn't look like you have to
> > create/register your Products object since I think the CayenneForm
> > will automatically do that for you.  Also, it looks like you may want
> > to call saveChanges() on the CayenneForm instead of commitChanges() on
> > the DataContext.
> >
> > Thanks!
> >
> > /dev/mrg
> >
> >
> > On 1/21/07, Jun Bondoy <dvbondoy@gmail.com> wrote:
> > > Hi Michael,
> > >
> > > Thanks for the quick response..based on your given code..this is what
> i did
> > > with Click and Cayenne..luckily Click have a PropertySelect that
> supports
> > > Cayenne to-one relationship..so what im trying to test now is the
> > > to-many..the only option ive got is to do it manually...can you take a
> quick
> > > look with my short code to see what im missing..ive got a SQLException
> > > error, Duplicate Entry..it seems like Cayenne save a new instance of
> > > Categories which i dont intend to...thanks in advance.and hey im
> looking
> > > forward for a Cayenne Books..hope you guys release one..im willing to
> buy
> > > one..
> > >
> > > *******CODES***************************
> > > public class ManageProducts extends BorderPage {
> > >
> > >     public CayenneForm form = new CayenneForm("form",Products.class);
> > >     private QuerySelect query;
> > >
> > >     public ManageProducts(){
> > >
> > >         form.add(new TextField("name"));
> > >         form.add(new TextField("serial"));
> > >
> > >         query = new QuerySelect("categories.name");
> > >         query.setQueryValueLabel("FindCategories", "name", "name");
> > >         form.add(query);
> > >
> > >         form.add(new Submit("save"," Save ",this,"onSaveClick"));
> > >     }
> > >
> > >     public boolean onSaveClick(){
> > >         if(form.isValid()){
> > >             Categories category =
> getCategoryService().findCategoryByName(
> > > query.getValue());
> > >             Products products = (Products) form.getDataObject();
> > >
> > >             products.setCategories(category);
> > >
> > >             if(category != null){
> > >                 getDataContext().commitChanges();
> > >                 form.clearValues();
> > >                 return true;
> > >             } else {
> > >                 return false;
> > >             }
> > >         } else {
> > >             return false;
> > >         }
> > >
> > >     }
> > >
> > > }
> > >
> > > ************ERRORS******************************
> > >
> > > [Click] [debug] Form -> Products.name : preofdkjfk
> > > [Click] [debug] Form -> Products.serial : 122837
> > > [Click] [debug] Form -> Products.categories.name : Category 2
> > > [Click] [error] handleException:
> > > org.objectstyle.cayenne.CayenneRuntimeException: [v.1.2.1 September 19
> 2006]
> > > Commit Exception
> > >     at org.objectstyle.cayenne.access.DataContext.flushToParent(
> > > DataContext.java:1289)
> > >     at org.objectstyle.cayenne.access.DataContext.commitChanges(
> > > DataContext.java:1165)
> > >     at org.russagri.page.inventory.ManageProducts.onSaveClick(
> > > ManageProducts.java:40)
> > >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > >     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> > >     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> > >     at java.lang.reflect.Method.invoke(Unknown Source)
> > >     at net.sf.click.util.ClickUtils.invokeListener(ClickUtils.java
> :881)
> > >     at net.sf.click.control.Field.invokeListener(Field.java:1097)
> > >     at net.sf.click.control.Submit.onProcess(Submit.java:207)
> > >     at net.sf.click.control.Form.onProcess(Form.java:1833)
> > >     at net.sf.click.extras.cayenne.CayenneForm.onProcess(
> CayenneForm.java
> > > :467)
> > >     at net.sf.click.ClickServlet.processPage(ClickServlet.java:484)
> > >     at net.sf.click.ClickServlet.handleRequest(ClickServlet.java:357)
> > >     at net.sf.click.ClickServlet.doPost(ClickServlet.java:302)
> > >     at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
> > >     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > >     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> > > ApplicationFilterChain.java:252)
> > >     at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> > > ApplicationFilterChain.java:173)
> > >     at net.sf.click.extras.filter.CompressionFilter.doFilter(
> > > CompressionFilter.java:209)
> > >     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> > > ApplicationFilterChain.java:202)
> > >     at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> > > ApplicationFilterChain.java:173)
> > >     at net.sf.click.extras.cayenne.DataContextFilter.doFilter(
> > > DataContextFilter.java:125)
> > >     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> > > ApplicationFilterChain.java:202)
> > >     at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> > > ApplicationFilterChain.java:173)
> > >     at org.apache.catalina.core.StandardWrapperValve.invoke(
> > > StandardWrapperValve.java:213)
> > >     at org.apache.catalina.core.StandardContextValve.invoke(
> > > StandardContextValve.java:178)
> > >     at org.apache.catalina.core.StandardHostValve.invoke(
> > > StandardHostValve.java:126)
> > >     at org.apache.catalina.valves.ErrorReportValve.invoke(
> > > ErrorReportValve.java:105)
> > >     at org.apache.catalina.core.StandardEngineValve.invoke(
> > > StandardEngineValve.java:107)
> > >     at org.apache.catalina.connector.CoyoteAdapter.service(
> > > CoyoteAdapter.java:148)
> > >     at org.apache.coyote.http11.Http11Processor.process(
> Http11Processor.java
> > > :869)
> > >     at
> > >
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
> > > (Http11BaseProtocol.java:664)
> > >     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
> > > PoolTcpEndpoint.java:527)
> > >     at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
> > > LeaderFollowerWorkerThread.java:80)
> > >     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
> > > ThreadPool.java:684)
> > >     at java.lang.Thread.run(Unknown Source)
> > > Caused by: java.sql.SQLException: Duplicate entry 'Category 2' for key
> 2
> > >     at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2975)
> > >     at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1600)
> > >     at com.mysql.jdbc.ServerPreparedStatement.serverExecute(
> > > ServerPreparedStatement.java:1125)
> > >     at com.mysql.jdbc.ServerPreparedStatement.executeInternal(
> > > ServerPreparedStatement.java:677)
> > >     at com.mysql.jdbc.PreparedStatement.executeUpdate(
> PreparedStatement.java
> > > :1357)
> > >     at com.mysql.jdbc.PreparedStatement.executeUpdate(
> PreparedStatement.java
> > > :1274)
> > >     at com.mysql.jdbc.PreparedStatement.executeUpdate(
> PreparedStatement.java
> > > :1259)
> > >     at
> > > org.objectstyle.cayenne.access.jdbc.BatchAction.runAsIndividualQueries
> (
> > > BatchAction.java:224)
> > >     at org.objectstyle.cayenne.access.jdbc.BatchAction.performAction(
> > > BatchAction.java:117)
> > >     at org.objectstyle.cayenne.access.DataNodeQueryAction.runQuery(
> > > DataNodeQueryAction.java:95)
> > >     at org.objectstyle.cayenne.access.DataNode.performQueries(
> DataNode.java
> > > :309)
> > >     at org.objectstyle.cayenne.access.DataDomainFlushAction.runQueries
> (
> > > DataDomainFlushAction.java:255)
> > >     at org.objectstyle.cayenne.access.DataDomainFlushAction.flush(
> > > DataDomainFlushAction.java:177)
> > >     at org.objectstyle.cayenne.access.DataDomain.onSyncFlush(
> DataDomain.java
> > > :830)
> > >     at org.objectstyle.cayenne.access.DataDomain$2.transform(
> DataDomain.java
> > > :801)
> > >     at org.objectstyle.cayenne.access.DataDomain.runInTransaction(
> > > DataDomain.java:856)
> > >     at org.objectstyle.cayenne.access.DataDomain.onSync(
> DataDomain.java:798)
> > >     at org.objectstyle.cayenne.access.DataContext.flushToParent(
> > > DataContext.java:1261)
> > >     ... 36 more
> > > [Click] [info ] renderTemplate: /click/error.htm - 15 ms
> > > [Click] [info ] handleRequest:  /inventory/manage-products.htm - 1047
> ms
> > > [Click] [debug] Uncommitted data objects:
> > > [Click] [debug]    {<ObjectId:Categories, TEMP:0000017ADC440001>; new;
> > > [products=>(..); name=>Category 2]}
> > > [Click] [debug]    {<ObjectId:Products, TEMP:0000007ADC060001>; new;
> > > [categories=>{<ObjectId:Categories, id=201>}; name=>preofdkjfk;
> > > serial=>122837]}
> > >
> > >
> > > On 1/20/07, Michael Gentry <blacknext@gmail.com> wrote:
> > > >
> > > > When you model the relationships in Cayenne Modeler and then
> generate
> > > > the Java classes, it'll create set* methods and addTo* methods for
> > > > your relationships.
> > > >
> > > > So in your case, something similar to this should work:
> > > >
> > > > Category category = [code to get your Category object];
> > > > Product product = dataContext.createAndRegisterNewObject(
> Product.class);
> > > > product.setCategory(category);
> > > > ...
> > > >
> > > > /dev/mrg
> > > >
> > > >
> > > > On 1/20/07, Jun Bondoy <dvbondoy@gmail.com> wrote:
> > > > > Hi list,
> > > > >
> > > > > can somebody help me please. i have a products object with to-one
> > > > > relationship with my categories object. what i want to do is
> create a
> > > > new
> > > > > products and use an existing categories object. below are the
> steps i
> > > > did...
> > > > >
> > > > > 1. lookup for my existing categories via query
> > > > > 2. create a new product object
> > > > >
> > > > > how can i set the product object on the categories object before
i
> > > > commit?
> > > > >
> > > > > thanks in advance..
> > > > >
> > > > > Best Regards
> > > > > -jun
> > > > >
> > > > >
> > > >
> > >
> > >
> >
>

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