Question

I have these tables:
questions, question_sets.

So it’s along with convention to do:
questions_question_sets.

Right? Next, I have this table:
answers.

Every questions_question_sets has many answers so I need to build a column name as singular. Is it going to be:
1. questions_question_set_id or
2. question_question_set_id?

I guess it should be the 1st but who knows…

Answer 1

TLDR:

questions_question_set_id

Further details in case next person is trying to do something like this:

Based on what you’re trying to do, I’m going to assume a Question can belong to more than one QuestionSet, and an Answer is specific to a Question within a specific QuestionSet (as opposed to what seems logical to me – an Answer belongs to a Question regardless of which QuestionSet it’s in).

Models

Question
QuestionSet
Answer
QuestionsQuestionsSet

Tables

questions
    id
question_sets
    id
answers
    id
    questions_question_set_id
questions_question_sets
    id
    question_id
    question_set_id

Associations

Question hasAndBelongsToMany QuestionSet
QuestionSet hasAndBelongsToMany Questions
Answer belongsTo QuestionsQuestionSet
QuestionsQuestionSet hasMany Answer

Fields