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Questions tagged [rails-models]

a component of the Rails framework that holds the state of an object and is responsible for enforcing business rules and persisting the object.

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How do I model a table tennis match in rails

I am attempting to model a table tennis match in rails. Here is what I have: Game Model: team_1_score team_2_score team_1_id team_2_id Team Model: game_id player_id Player Model: Name So each game will consist of 2 teams (of either 1 or 2 players…
thargor
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Rails relationship between three models confusing

I know there is a plenty of tutorials explaining how to create a 'has_many through' relationship between models, but I think my question is both technical and conceptual. The objective is to create an online food ordering website I created the…
Bruno Farias
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How to count unvoted Options powered by "thumbs_up" gem WITHOUT RETURNING AN ARRAY

Poll has_many Questions, Question has_many Options, Option acts_as_voter I tried to count unvoted options BY SQL, WITHOUT RETURNING AN ARRAY this work [22] pry(main)> unvoted = Option.tally.where('question_id = ?', 3).having('COUNT(votes.id) = 0') …
srghma
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How do I get a Rails association to use a certain name to access a model of a different name?

Let's say I have a user model and a movie model as well as tables to store them. Let's say I want to add a watchlist feature by adding a third table called watchlist_movies that simply maps a user_id to a movie_id. I now want to add a…
Captain Stack
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Rails - How to call values from one model into another model form

I'm working on some app and I have 2 models. Categories in which I create category names and Question. Category has_many questions and Question belongs_to Category. I've added category_id to Question model. Now I need to take all Category_names…
RubyDigger19
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Mutual relationships in rails 4

I'm trying to allow users in my app to be mutual friends with one another via friend requests and I'm a little confused with the how the relationships work... When a friendship is created by one user and accepted by the other, I would like the…
Riptyde4
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Rails 4 Duplicating Model Objects and Merging New Object attribtues (Amoeba Gem)

What I'm doing: Duplicating a record of my Project model then overwriting the modified attributes from an object submitted by a form. The new record should be modified but have all the associations as the original. The first step I took was to…
JerryA
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Rails. Multiple instances of same foreign key in a single table

I'm not sure how to model the following requirements: We send packs of 3 different beers to our users. The users are divided in 4 categories of tasting_profiles. Then, we prepare 4 different packs of beers for all our users. Then the users rate the…
Lastimoso
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Rails - four tables associations -

a rails newbie here, looking at doing some work with 4 tables and not totally sure how to structure the associations. Below topic involves real estate, probably helpful to keep that in mind. I have four models: Property - a physical house Project…
Anthony
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Relationships in Ruby on Rails: what is the proper model building method for a list?

I'm trying to figure out what is the proper way to setup my model and database if I have a list under itineraries... Database Table `users` id `itinerary` id user_id items Model class User < ActiveRecord::Base has_many :itineraries end class…
hellomello
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touch should not updated `updated_at` on destroy in Rails3

I am working on touch in Rails but facing on issue here. class User < ActiveRecord::Base belongs_to :company, touch: true end But I want this should not update the updated_at of company model only when I delete the user but other case it should…
Vinay
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A Very Specific ActiveRecord Validation

I'm will try to explain my dilemma as best I can. I have a 2 models Users and Devices Devices has a type column. For example it can be a Tablet or a Smart Phone. I then have another model Ownership This model belongs to both Users and Devices so…
Dan
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how to setup two user_id columns in one model in rails?

I have two models class User has_many :disputes end class Dispute belongs_to :user end So Dispute has :user_id, but my problem is that a Dispute has 2 sides - the claimant and the indicted, both of which are users. I tried to solve this…
anndrew78
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Issue with saving and validating temporary virtual attributes which come from form inputs

I have two models: Project. Item. A project has many items, and an item belong to a project. class Project < ActiveRecord::Base attr_accessor :main_color, :secondary_color, :tertiary_color has_many :items accepts_nested_attributes_for…
Ehsan
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Connecting two models belongs_to/has_many and selecting via dropdown in form

I am rails beginner and I am facing a basic problem. I have found a couple of solutions but none of them fully describe my problem. I have two models: Contact and Group Group has_many :contacts Contact belongs_to :group (Through devise there is a…
Jan
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