kraken-ua/test-task-custom-fields

Custom Fields App (test task)

Custom Fields app

Assumptions

• Each tenant can define custom fields of different types (text, number, single_select, multiple_select).
• Users belong to a tenant and can set values for custom fields defined by their tenant.
• The API endpoint for updating custom fields for a user is /users/:id and expects a custom_fields parameter with field IDs and values.

Setup

1. Clone the repository.
2. Run bundle install to install dependencies.
3. Run rails db:migrate to create the database schema.
4. Run rails server to start the application.

API Endpoint

Update User Custom Fields

PATCH /users/:id

Parameters

• custom_fields: Hash of custom field IDs and values.

Example Request

curl -X PATCH "http://localhost:3000/users/1" \
-H "Content-Type: application/json" \
-d '{
  "custom_fields": {
    "1": "Ivan Zaitsev",
    "2": "1234567890"
  }
}'

Optional Features

To make custom fields usable by other entities, you can generalize the custom fields association. This might involve creating a polymorphic association for the CustomFieldValue model. This would allow you to associate custom field values with different models, not just users.

app/models/custom_field_value.rb:

class CustomFieldValue < ApplicationRecord
  belongs_to :customizable, polymorphic: true
  belongs_to :custom_field

  validates :value, presence: true
end

And then update associations:

class User < ApplicationRecord
  belongs_to :tenant
  has_many :custom_field_values, as: :customizable

  # ... existing methods
end

class CustomField < ApplicationRecord
  belongs_to :tenant
  has_many :custom_field_values, as: :customizable

  # ... existing methods
end