How could I do a simple join using LLBLGen? table1 - clientTable (address, phone, etc) table2 - employeeTable (name, etc) table3 - clientEmployeeTable (clientid, employeeid) I'm filling out a datagrid using the employeeId with fields for the client information (address, phone, etc) and I'm not sure how I could retrieve this using LLBL...
{ MESSAGE = LoginWelcomeBackMessage; SUCCESS = 1; USER = { AcceptAllFriendRequests = 0; CreateDate = "June, 07 2010 00:00:00"; DayOfBirth = "April, 24 1974 00:00:00"; UserName = "Erik Madsen"; }; } My CFC defines all the columns in my database table, but when a column is NULL, the field isn't returned as a property ...
I'm using Kohana 3.0.6 with ORM. I have a model named "truck" and in his table there's a column with the id of his maker ("maker"). Then I have the "maker" model with the id and the name in his table. I'm trying to do a simple LEFT-JOIN when I display the listing of the trucks so I can get directly the names of their maker. Here is my...
I have a Doctrine_Collection object that was created with code that looks something like. $collection = Doctrine_Query::create() ->from('FooBazBar') ->where('widget_id = ?',$some_var) ->execute(); Short of writing it down somewhere, is it possible to to retrieve the where clause that was used to create the collection? That is, I want...
Possible Duplicate: Why should you use an ORM? This quote is from the book "Asp.net mvc framework unleashed" by Walther and so far is a very good book. The Entity Framework shields you from needing to interact directly with the database. By taking advantage of the Entity Framework, you never need to write SQL queries aga...
Hi. I'm studying django. In my project I'm having trouble with making a query with django ORM: SELECT MIN( id ) AS id, domain, COUNT( * ) AS cnt FROM app_competition WHERE word_id = 1545 GROUP BY domain Help me please make this query ...
When I use the maven-hibernate3-plugin (aka hbm2ddl) to generate my database schema, it creates many database constraints with terrifically hard-to-remember constraint names like FK7770538AEE7BC70 . Is there any way to provide a more useful name such as FOO_FK_BAR_ID ? If so, it would make it a tad easier to track down issues in the lo...
Env: Seam 2.2.0, JPA, Hibernate 3.3.x, ehcache-core 2.0.1 Here are some observations on using a cache along with Hibernate. We are already using the 2nd level cache but not quite comfortable with the response times. The third option mentioned in the above reference (Direct access to EHCache, only use Hibernate on a cache miss: 20 secon...
Hi all, I'm wondering what the best feature(s) of the orm framework you use and what features you find yourself using most? What is the reason you chose the framework you use? I'm just trying to compare them and wondered if any offers advantages over the other. (it's all very well googling this but you can't beat first hand user exper...
Hi all, I've been looking into various ORM frameworks lately (mostly .net) and see that the Active Record design pattern is commonly used to persist data. I just wondered what everyone's take on the active record pattern is? Personally I think it puts too much responsibility on the data object, be it just a data container or an entity...
Consider a relation with a candidate key of three attributes: I was wondering if someone could give me an example of a config file for Hibernate? ...
How do I sort out some data according to an where clause and a order by clause using object query language this is the query that I'm using but i'm not sure if it is working or not. SELECT user from user.User as user WHERE user.status=1 order by user.username Thanks. ...
I'm not sure if the title is the best way to describe this question. This book - http://apress.com/book/view/9781590599099 - illustrates an implementation of the Unit of Work pattern. It goes a little something like this. class UoW(){ private array $dirty; private array $clean; private array $new; private array $delete; ...
I am currently researching the best practises (at a reasonably high level) for application design for highly maintainable systems which result in minimal friction to change. By "Data Tier" I mean database design, Object Relation Mappers (ORMs) and general data access technologies. From your experiences, what have you found to be the com...
Hi All, Let's say I have two tables, employee and department where emp has a @ManyToOne key to dept. Now I want to be able to delete rows from the dept table but keep the emp records pointing to it; basically saving the relationship so that when the dept table is recreated the relationship is restored. (This actually happens in our syst...
I couldn't find a reference on how to switch hbm2ddl off. ...
Hi, I have a model which looks like this: class MyModel(models.Model) value = models.DecimalField() date = models.DatetimeField() I'm doing this request: MyModel.objects.aggregate(Min("value")) and I'm getting the expected result: {"mymodel__min": the_actual_minimum_value} However, I can't figure out a way to get at the ...
Hi, I've just been assigned to a ORM mapping project (data-centric app with C# code and SQL Server database) for which the requirement is explicitly that POCO will be used, and that the ORM will autogenerate the database from the C# objects - so the C# object model is in effect king of the data. I'd not heard of POCO before and I'm inst...
Hi, Im writing a simple editor for a game, to manage the relationships between creatures. The creatures table is setup with a id, name etc. and a boolean is_prey column; what I need is to figure out how a) an ORM relation can be defined between id's from the same table b) how to limit the 'available' other-nodes to only include the ones...
I am creating a website that will have articles; each article will have comments. These comments will be stored in a "comment" table with a field called "parent_id" that is a foreign key to the field "id" in the same table. I am hoping to use Hibernate to recursively grab all of the comments for a specific article. Here is my Entity:...