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New posts in models

Best way to make one model 'selected' in a Backbone.js collection?

Rails put validation in a module mixin?

Rails: how to require at least one field not to be blank

How to have two models reference each other Django

Django model instances primary keys do not reset to 1 after all instances are deleted

Could not find the association problem in Rails

Ruby on Rails: Is it better to validate in the model or the database?

guidelines for where to put classes in Rails apps that don't fit anywhere

AttributeError: 'ManyRelatedManager' object has no attribute 'add'? I do like in django website but got this error

django many-to-many models

How can I fill up form with model object data?

django forms models

Create Ruby on Rails views (only) after controllers and models are already created

Should I avoid multi-table (concrete) inheritance in Django by any means?

Class 'App\Http\Controllers\DB' not found and I also cannot use a new Model

Using multiple PostgreSQL schemas with Rails models

Rails 4: organize rails models in sub path without namespacing models?

Reusing a Model Built in R

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Django: Calling .update() on a single model instance retrieved by .get()?

python django models

models.py getting huge, what is the best way to break it up?

Create if doesn't exist

django models