User id is 0 by default

[cupakromer]

Related to this Stackoverflow comment.

From what I can see you've setup your system to generate 0 ids.

Your schema is stating that you do not want Rails to tell the database to set the id field as auto incrementing. You also are telling Rails to tell the database to set the id value to be 0 by default if one is not provided.

create_table "users_view", id: false, force: :cascade do |t|
  t.integer  "id",         limit: 4, default: 0, null: false

In your model you tell Rails to use the id as the primary key and to use a custom table. Based on your schema it's an actual table, not a view.

self.table_name = "users_view"
self.primary_key = "id"

Based on all that I would expect the following to be true:

u = User.create!
u.id
# => 0