I guess that I do not know the right terminology yet, thus find it difficult to find the right answer.
My models: class Contact < ActiveRecord::Base has_many :addresses has_man开发者_开发问答y :emails
I am seeking a way to do the opp开发者_如何学JAVAosite of : Model.where(:name => \'julian\') Something like :
I would like to sort forum\'s users by total_content_length. To get the top n writers in the forum I do:
I am trying my first join and the sql that it\'s generating is very odd. I have a Recipient belongs to a User. I am trying to query all the recipients by a user that are also not read and not deleted
Consider a simple example, where we have 2 models, Article and Category. class Article < ActiveRecord::Base
I seem to have this error, and I\'m not doing anything special: NameError (undefined method `message_id_equals\' for class `ActiveRecord::Relation\')
I have some scopes definied in a Model called Events. Now I need join them using OR operator. I’m using Rails3 and I’m a bit confused with ActiveRelation & Arel and how and how I should use this
This is related to a question a year and change ago. I put up an example of the question that should work out of the box, provided you have sqlite3 available: https://github.com/cairo140/rails-eager-
I would like to perform an ActiveRecord query that returns all records except those records that have certain ids.The ids I would like excluded are stored in an array.So:
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