Rename de la colonne admin de la table user en is_admin

app/controllers/api/v1/users_controller.rb

 
   # Only allow a trusted parameter "white list" through.
   def user_params
-    if current_user&.admin
-      params.require(:user).permit(:email, :username, :password, :admin)
+    if current_user&.is_admin
+      params.require(:user).permit(:email, :username, :password, :is_admin)
     else
       params.require(:user).permit(:email, :username, :password)
     end
   end
 
   def check_owner_or_admin
-    head :forbidden unless @user.id == current_user&.id || current_user&.admin
+    head :forbidden unless @user.id == current_user&.id || current_user&.is_admin
   end
 end

app/controllers/concerns/authenticable.rb

   end
 
   def is_admin?
-    head :forbidden unless self.current_user.admin    
+    head :forbidden unless self.current_user.is_admin    
   end
 end

app/serializers/user_serializer.rb

 class UserSerializer
   include JSONAPI::Serializer
-  attributes :email, :username, :admin
+  attributes :email, :username, :is_admin
   has_many :activities
 
   cache_options store: Rails.cache, namespace: 'jsonapi-serializer', expires_in: 1.hour

db/migrate/20210413093535_create_users.rb

       t.string :username, null: false
       t.index :username, unique: true
       t.string :password_digest
-      t.boolean :admin, default: false   
+      t.boolean :is_admin, default: false   
 
       t.timestamps
     end

db/schema.rb

     t.string "email", null: false
     t.string "username", null: false
     t.string "password_digest"
-    t.boolean "admin", default: false
+    t.boolean "is_admin", default: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
     t.index ["email"], name: "index_users_on_email", unique: true

db/seeds.rb

   end
 end
 
-User.create! username: "admin", email: "admin@email.com", password: "azerty", admin: true
+User.create! username: "admin", email: "admin@email.com", password: "azerty", is_admin: true
 puts "Created Admin"
 
 30.times do |i|

test/fixtures/users.yml

 one:
   email: one@one.com
   username: OneUsername
-  admin: false
+  is_admin: false
   password_digest: <%= BCrypt::Password.create('g00d_pa$$') %>
 
 two:
   email: two@two.com
   username: TwoUsername
-  admin: false
+  is_admin: false
   password_digest: <%= BCrypt::Password.create('g00d_pa$$') %>