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New posts in models

Roll back all rails migrations or drop tables and modify migrations (start from scratch)

Django models filter by foreignkey

How do I specify shared attributes translations between models in I18n locale file?

Error in admin: __str__ returned non-string (type NoneType)

django admin models typeerror

Compare two lists of object for new, changed, updated on a specific property

c# list object compare models

Creation of dynamic model fields in django

django dynamic models

Restrict django FloatField to 2 decimal places

python django forms models

How to use different authentication_keys for two devise 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?