Rails: accessing field value from model method
Where title is a field on the table in the database, why does calling @title return nil? Unbelievably, accessing model fields from inside a method on that model is undocumented. ...
model
How to model a specific many to many association
Currently I have several models set up like so, class Account < ActiveRecord::Base has_many :office_hours has_many :staff_positions end class OfficeHour < ActiveRecord::Base belongs_to :account end class StaffPosition < ActiveRecord::Base belongs_to :account end class Document < ActiveRecord::Base end Now I need to set up a...
Django save a list of items in a m2m intermediary table
I have a m2m field in a class, and a through table. I am not table to save the list of items from the through table. if i have a multi select form, like below, and i want to be able to save all the selected items, how should i do it?? My model form looks like this: class ClassroomForm(ModelForm): class Meta: model = Class...
Creating a model that references itself with Google App Engine
I tried doing the following class SomeModel(db.Model): prev = db.ReferenceProperty(SomeModel) next = db.ReferenceProperty(SomeModel) but got the following error NameError: name 'TrackPointModel' is not defined Is there a way of doing this? ...
ASP.Net MVC 2 - Model Coupling with Repository
Referring to this question, let's say we have the following scenario - A model class User that implements IUser [MetadataType(typeof(IUser))] public class User : IUser And a repository that handles saving, retrieving etc. of this from whichever datastore we want to use public class UserRepository : IRepository<User> IQueryable<User...
Cakephp, ordering associated tables.
Hi, When I search a model which "has many" of something else. For example a blog post has many categories. When searching for blog post with categories associated, how do I order the associated categories? When the array is returned it ignores the order on the category model and defaults to it's usual id order. Cheers. ...
Model-View-Presenter and Three-Tier?
What is the difference between the two architectures: Model-View-Presenter and Three-Tier? I understand the definitions of each when read individually, but I can't readily see how they're different. Is it desktop vs web? I am currently developing a simple desktop application in Python to visualize a complicated data model via a GUI. ...
How to disable Validation in ASP.net MVC2 if the parameter of the action is a model
In ASP.net MVC 2, if the parameter of the action is a model, how to disable validation to dismiss the exception like 'A potentially dangerous Request.Form value was detected from the client (Post.Title="<b>Title</b>"). '? For example, in MvcMusicStore (Which is an official demostration of ASP.net MVC2), the following code is in charge o...
Use a model as a source for a QMenu
Hi, I created a model which list the existing configurations (let's say it lists "files", as this doesn't really matter here). So far, it works well when attached to a QListView. Example: --- ListView --- - file #1 - - file #2 - - file #3 - - file #4 - ---------------- Is it possible to use the same model for a d...
desigining the domain model - need help
i know whats is happening and why its throwing an error (it does not find GetBrokenRules method because its List) but the reason i posted this question here is to ask for a better design, can anybody guide me here please? i am working on Facilities class (List..../Building/Floor) error: Error 3 'System.Collections.Generic.List' ...
How to load a model from another module with CodeIgniter
Im using the HMVC extension with CodeIgniter and i got 2 modules modules/frontpage -- controllers frontpage.php ( <- this controller needs to load the person model) -- models -- views modules/person -- controllers -- models person_model.php ( defines Person_Model extends Model ) -- views using $this->load->model('p...
Feedback wanted for my first django custom field!
Hi I've created my first custom django field. Its a social security number field (Cpr) following danish syntax. As I'm new to both python and django i would love to get some feedback on the code! import django.forms as f from datetime import datetime import json from django.utils.safestring import mark_safe from django.core.exceptions i...
CakePHP: Is there a way to include variables in the definition of hasAndBelongsToMany?
I recently started using CakePHP and am trying to define User-specific "field" preferences. Basically, I want each user to be able to specify which fields he/she wants to see in a table. To do this, I have a users table, a fields table, and a fields_users table. The last table is just a field_id and user_id, so the code knows to lin...
asp.net mvc2 - how to get model and model.something in the same way in controller?
If my Model is Contacts then I can easily get it in controller like this: [HttpPost] public ActionResult Create(Contact contact) ... But if my Model is wrapper for Contacts and something else then in View I display it using Model.contact. How to get Contact in Controller the same way like I did in first case? I don't want to use Form...
Model or Library class
Hello Im going to do an Email class for sending emails in my MVC framework. I also have a login class that just checks if the user is in the database. Should I put those classes in the library folder or should I implement them as models? I tried to do search but couldnt find straight answer.. ...
Get Model Field Name in Template
In a template for a view I would like to use the name of a field and not just the value. So for example if I have this: class Test(models.Model): name = models.CharField(max_length=2, verbose_name = 'Your name') age = models.PositiveSmallIntegerField(max_length=3) I would like to be able to do {{ name.get_field_name_display }} which...
Cakephp model associations and amount of mysql queries they require
I have a rather simple data model, but I have a centric entity called "item" which is associated to 7 other entities via 1-to-1 / 1-to-many relationships. Everything works smooth. But in most actions that work with the item model, I dont need any of the associations from the item Model - so mysql ends up issuing a many unnecessary querie...
ASP.NET MVC 2: ViewData.Model.ExecuteResult not existing
ViewData.Model.ExecuteResult does not exist in ASP.NET MVC2, but in MVC1. What is the alternative in ASP.NET MVC2? What I want to do, is to update a table after an ajax request. So I put the table in an extra View. How can I update this partial view without loading the whole page again? ...
Symfony: question about get and set methods of the base model classes.
Hi, if you go to a base class of the model you won't find any get or set method. It is because those methods is said are created "on the air". What does it mean exacltly, I suspect it just means they are created in the moment they are needed. Am i right? What are the advantages of the way rescpect of generate the methods inside the ...
How to model this in django (inherited model, where each inherited model has a unique method)
How to model this in django: 1) have a base network of manufacturers 2) under each network their might be several distributors 3) a user of the system can access items through the distributor 4) if a user access the item through the distributor we want that item to be translated where each manufacturer will have their own translation...