Re: multiple model usage example
Re: multiple model usage example
- Subject: Re: multiple model usage example
- From: "Joe Little" <email@hidden>
- Date: Mon, 28 Jul 2008 11:19:34 -0700
On Mon, Jul 28, 2008 at 11:18 AM, Joe Little <email@hidden> wrote:
> On Mon, Jul 28, 2008 at 11:03 AM, Kieran Kelleher <email@hidden> wrote:
>> Hi Joe,
>>
>> AFAIK, if you just define properties below for each model using the syntax
>> <modelname>.URL, <modelname>.DBUser, etc., all the models and their entities
>> will be automatically loaded at startup by Wonder which checks for such
>> properties at startup.
>>
>> In your Application constructor, after super(), all the models and entities
>> will have been loaded by Wonder, so you can iterate thru models and/or
>> entities and do what you like with them, for example ......
>>
>> // Make demography eomodel readonly
>> boolean demographyIsReadOnly =
>> ERXProperties.booleanForKeyWithDefault("demography.isReadOnlyEntities",
>> false);
>>
>> if (demographyIsReadOnly) {
>>
>> EOModel demography =
>> EOModelGroup.defaultGroup().modelNamed("demography");
>>
>> for (java.util.Enumeration demographyEntityEnumerator =
>> demography.entities().objectEnumerator(); demographyEntityEnumerator
>> .hasMoreElements();) {
>> EOEntity entity = (EOEntity)
>> demographyEntityEnumerator.nextElement();
>> entity.setReadOnly(true);
>> }
>>
>> }
>
> So, I presume you'd want ERXModelGroup there. The above was not in
> Application.java I presume. When asking for a objects for a specific
> entity, has done one use the usual utilities to call on the specific
> model?
Blah.. How does one use.. My mind is getting screwy trying to glean
something from the Wonder examples :)
>
> ie.. NSArray items = EOUtilities.objectsForEntityNamed (new
> EOEditingContext(), "Item");
>
> I guess I'm only missing the link between auto-loaded models and the
> above style call, which I did with this:
>
> admitModel = ERXModelGroup.defaultGroup().modelNamed("admit");
> admitArchModel = ERXModelGroup.defaultGroup().modelNamed("admitarch");
>
> Does it just look for an Item across both models?
>
>
>
>
>>
>> Kieran
>>
>> On Jul 28, 2008, at 1:38 PM, Joe Little wrote:
>>
>>> On Mon, Jul 28, 2008 at 5:08 AM, Kieran Kelleher <email@hidden>
>>> wrote:
>>>>
>>>> Hi Joe,
>>>>
>>>> Not sure if this is what you are looking for .... here is an example of
>>>> entries in Properties for access to different databases:
>>>>
>>>> <snip>
>>>> #########################################################################
>>>> # ERExtensions - ERXModelGroup properties
>>>> #########################################################################
>>>>
>>>> er.extensions.ERXModelGroup.prototypeModelNames=WKPrototypes
>>>>
>>>> cheetah.URL = jdbc:mysql://host1/cheetah?capitalizeTypenames=true
>>>> cheetah.DBUser = @@cheetah.dbuser@@
>>>> cheetah.DBPassword = @@cheetah.dbpassword@@
>>>> cheetah.DBDriver =
>>>> cheetah.DBPlugin =
>>>> cheetah.DBJDBCInfo =
>>>>
>>>>
>>>> demography.URL = jdbc:mysql://host2/demography?capitalizeTypenames=true
>>>> demography.DBUser = @@demography.dbuser@@
>>>> demography.DBPassword = @@demography.dbpassword@@
>>>> demography.DBDriver =
>>>> demography.DBPlugin =
>>>> demography.DBJDBCInfo =
>>>> </snip>
>>>>
>>>> IIRC, ERXModelGroup is where a lot of model startup entity loading
>>>> munging
>>>> happens, so examining the source there can indicate what is happening,
>>>> how
>>>> it works, and what Properties entries affect what.
>>>>
>>>
>>> I'll look into the code. Never looked inside Wonder source and was
>>> hoping for examples on how to use it. So, there isn't posted anyway
>>> examples on using ERXModelGroup and loading models into an app within
>>> Application? Again, I've been limited to the stuff that WO just gives
>>> you to date, which is all automatic. My understanding currently ends
>>> there.
>>>
>>>
>>>> HTH,
>>>>
>>>> Kieran
>>>>
>>>> On Jul 28, 2008, at 2:22 AM, Joe Little wrote:
>>>>
>>>>> That would need to be an ER Model I take it. Again, do you happen to
>>>>> have a snippet of code taking multiple entity modeler defined models,
>>>>> overriding those settings, etc, and then having a joined model group..
>>>>> or should this not be in a model group. I'm confused as to how this is
>>>>> all done w/ Wonder as I've also been trying to use ModelConnector and
>>>>> other PracticalWO Frameworks solutions to the same.
>>>>>
>>>>>
>>>>> On Sun, Jul 27, 2008 at 10:48 PM, Guido Neitzer <email@hidden>
>>>>> wrote:
>>>>>>
>>>>>> On 27.07.2008, at 23:28, Joe Little wrote:
>>>>>>
>>>>>>> Ok. I've banged my head on this one a lot. ConfigurationManager allows
>>>>>>> you to change anything except for the database itself.
>>>>>>
>>>>>> ??
>>>>>>
>>>>>> dbConnectURLGLOBAL=jdbc:postgresql://localhost/meetings
>>>>>>
>>>>>> That can also be set on a per model base.
>>>>>>
>>>>>> cug
>>>>>>
>>>>>> --
>>>>>> http://www.event-s.net
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Do not post admin requests to the list. They will be ignored.
>>>>> Webobjects-dev mailing list (email@hidden)
>>>>> Help/Unsubscribe/Update your Subscription:
>>>>>
>>>>>
>>>>>
>>>>> This email sent to email@hidden
>>>>
>>>>
>>
>>
>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden