squeel

I am using Ruby on Rails 3.2.2 and the Squeel gem. I have following statements and I am trying to refactoring the my_squeel_query method in a Mixin module (since it is used by many of my models): # Note: 'article_comment_associations' and 'model_as_like_article_comment_associations' # refer to database table names. class Article < ActiveRecord::Base def my_squeel_query commenters. .where{ article_comment_associations.article_id.eq(my{self.id}) & ... } end end class ModelAsLikeArticle < ActiveRecord::Base def my_squeel_query commenters. .where{ model_as_like_article_comment_associations.article

In my application, I have to models: Workflow and Step; steps belongs_to workflow and a workflow has_many steps. Steps have an index and a boolean status ('completed'). I want to retrieve workflows whose step 1 is completed and step 2 is not, i.e. something like this in SQL: SELECT * FROM workflows w INNER JOIN steps s1 ON s1.workflow_id = w.id INNER JOIN steps s2 ON s2.workflow_id = w.id WHERE s1.index = 1 AND s1.completed = 1 AND s2.index = 2 AND s2.completed = 0 I've tried to express this query with Squeel, but it seems it does not allow multiple joins on the same association: I cannot find

Short version: How do I write this query in squeel? SELECT OneTable.*, my_count FROM OneTable JOIN ( SELECT DISTINCT one_id, count(*) AS my_count FROM AnotherTable GROUP BY one_id ) counts ON OneTable.id=counts.one_id Long version: rocket_tag is a gem that adds simple tagging to models. It adds a method tagged_with . Supposing my model is User , with an id and name, I could invoke User.tagged_with ['admin','sales'] . Internally it uses this squeel code: select{count(~id).as(tags_count)} .select("#{self.table_name}.*"). joins{tags}. where{tags.name.in(my{tags_list})}. group{~id} Which generates

I'm probably doing something silly here - and I'm open to other ways of doing - but I'm trying to order my results set based on a computed field: Client.select{['clients.*', (cast((surname == matching_surname).as int) * 10 + cast((given_names == matching_given_names).as int) + cast((date_of_birth == matching_date_of_birth).as int).as(ranking)]}. where{(surname =~ matching_surname) | (given_names =~ matching_given_names) | (date_of_birth == matching_date_of_birth)}. order{`ranking`.desc} My problem is that date_of_birth could be nil. This causes the cast((...).as int) call to return three

I'm trying to order Tags by order of the descending frequency of their association with Users of a specific Group. (ActiveRecord & Rails 3.2 - I also have Squeel installed if that helps!) Users have Tags, Groups have Users. Groups thus have Tags through Users. class Group < ActiveRecord::Base has_many :users_groups # join table has_many :users, through: :users_groups has_many :tags, through: :users class User < ActiveRecord::Base has_many :users_groups # join table has_many :groups, through: :users_groups has_many :taggings # join table has_many :tags, through: taggings class Tag <