Merge pull request #163 from travis-ci/rkh-v3-separate-models

API v3: No longer use models from travis-core

Gemfile.lock

@@ -50,7 +50,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-core.git
-  revision: a82f25fb00a39c3c64b8c09c716c206e6f4c6fad
+  revision: 4cfa414b1d384e518d567c70d572b34a74cbf0bf
   specs:
     travis-core (0.0.1)
       actionmailer (~> 3.2.19)

lib/travis/api/v3.rb

@@ -21,6 +21,7 @@ module Travis
       end
 
       extend self
+      load_dir("#{__dir__}/v3/extensions")
       load_dir("#{__dir__}/v3")
 
       ClientError        = Error        .create(status: 400)

lib/travis/api/v3/access_control/generic.rb

@@ -52,8 +52,17 @@ module Travis::API::V3
     private
 
     def dispatch(object, method = caller_locations.first.base_label)
-      method = object.class.name.underscore + ?_.freeze + method
+      method = method_for(object.class, method)
       send(method, object) if respond_to?(method, true)
     end
+
+    @@method_for_cache = Tool::ThreadLocal.new
+
+    def method_for(type, method)
+      @@method_for_cache[[type, method]] ||= begin
+        prefix = type.name.sub(/^Travis::API::V3::Models::/, ''.freeze).underscore
+        "#{prefix}_#{method}"
+      end
+    end
   end
 end

lib/travis/api/v3/access_control/user.rb

@@ -5,6 +5,7 @@ module Travis::API::V3
     attr_reader :user, :permissions
 
     def initialize(user)
+      user         = Models::User.find(user.id) if user.is_a? ::User
       @user        = user
       @permissions = user.permissions.where(user_id: user.id)
       super()

lib/travis/api/v3/extensions/belongs_to.rb

@@ -0,0 +1,49 @@
+module Travis::API::V3
+  module Extensions
+    # This is a patch to ActiveRecord to allow classes for polymorphic relations to be nested in a module without the
+    # module name being part of the type field.
+    #
+    # Example:
+    #
+    #     # Without this patch
+    #     Repository.find(2).owner.class                          # => User
+    #     Travis::API::V3::Models::Repository.find(2).owner.class # => User
+    #
+    #     # With this patch
+    #     Repository.find(2).owner.class                          # => User
+    #     Travis::API::V3::Models::Repository.find(2).owner.class # => Travis::API::V3::Models::User
+    #
+    # ActiveRecord does not support this out of the box. We accomplish this feature by tracking polymorphic relations
+    # and then adding the namespace when calling ActiveRecord::Base#[] with the foreign type key and removing it again
+    # in ActiveRecord::Base#[]=, so we don't break other code by accidentially writing the prefixed version to the
+    # database.
+    module BelongsTo
+      module ClassMethods
+        def polymorfic_foreign_types
+          @polymorfic_foreign_types ||= []
+        end
+
+        def belongs_to(field, options = {})
+          polymorfic_foreign_types << (options[:foreign_type] || "#{field}_type") if options[:polymorphic]
+          super
+        end
+      end
+
+      def self.included(base)
+        base.extend(ClassMethods)
+        super
+      end
+
+      def [](key)
+        value   = super
+        value &&= "#{self.class.parent}::#{value}" if self.class.polymorfic_foreign_types.include?(key)
+        value
+      end
+
+      def []=(key, value)
+        value &&= value.sub("#{self.class.parent}::", ''.freeze) if self.class.polymorfic_foreign_types.include?(key)
+        super(key, value)
+      end
+    end
+  end
+end

lib/travis/api/v3/model.rb

@@ -0,0 +1,6 @@
+module Travis::API::V3
+  class Model < ActiveRecord::Base
+    include Extensions::BelongsTo
+    self.abstract_class = true
+  end
+end

lib/travis/api/v3/models.rb

@@ -0,0 +1,5 @@
+module Travis::API::V3
+  module Models
+    extend ConstantResolver
+  end
+end

lib/travis/api/v3/models/broadcast.rb

@@ -0,0 +1,5 @@
+module Travis::API::V3
+  class Models::Broadcast < Model
+    belongs_to :recipient, polymorphic: true
+  end
+end

lib/travis/api/v3/models/build.rb

@@ -0,0 +1,10 @@
+module Travis::API::V3
+  class Models::Build < Model
+    belongs_to :repository
+    belongs_to :commit
+    belongs_to :request
+    belongs_to :repository, autosave: true
+    belongs_to :owner, polymorphic: true
+    has_many   :jobs, as: :source, order: :id, dependent: :destroy
+  end
+end

lib/travis/api/v3/models/commit.rb

@@ -0,0 +1,6 @@
+module Travis::API::V3
+  class Models::Commit < Model
+    belongs_to :repository
+    has_one    :request
+  end
+end

lib/travis/api/v3/models/email.rb

@@ -0,0 +1,5 @@
+module Travis::API::V3
+  class Models::Email < Model
+    belongs_to :user
+  end
+end

lib/travis/api/v3/models/job.rb

@@ -0,0 +1,10 @@
+module Travis::API::V3
+  class Models::Job < Model
+    has_one    :log, dependent: :destroy
+    belongs_to :repository
+    belongs_to :commit
+    belongs_to :build, autosave: true, foreign_key: 'source_id'
+    belongs_to :owner, polymorphic: true
+    serialize :config
+  end
+end

lib/travis/api/v3/models/log.rb

@@ -0,0 +1,7 @@
+module Travis::API::V3
+  class Models::Log < Model
+    belongs_to :job
+    belongs_to :removed_by, class_name: 'User', foreign_key: :removed_by
+    has_many  :log_parts, dependent: :destroy
+  end
+end

lib/travis/api/v3/models/log_part.rb

@@ -0,0 +1,5 @@
+module Travis::API::V3
+  class Models::LogPart < Model
+    belongs_to :log
+  end
+end

lib/travis/api/v3/models/membership.rb

@@ -0,0 +1,6 @@
+module Travis::API::V3
+  class Models::Membership < Model
+    belongs_to :user
+    belongs_to :organization
+  end
+end

lib/travis/api/v3/models/organization.rb

@@ -0,0 +1,7 @@
+module Travis::API::V3
+  class Models::Organization < Model
+    has_many :memberships
+    has_many :users, through: :memberships
+    has_many :repositories, as: :owner
+  end
+end

lib/travis/api/v3/models/permission.rb

@@ -0,0 +1,6 @@
+module Travis::API::V3
+  class Models::Permission < Model
+    belongs_to :user
+    belongs_to :repository
+  end
+end

lib/travis/api/v3/models/repository.rb

@@ -0,0 +1,23 @@
+module Travis::API::V3
+  class Models::Repository < Model
+    has_many :commits,     dependent: :delete_all
+    has_many :requests,    dependent: :delete_all
+    has_many :builds,      dependent: :delete_all
+    has_many :permissions, dependent: :delete_all
+    has_many :users,       through:   :permissions
+
+    belongs_to :owner, polymorphic: true
+
+    has_one :last_build,
+      class_name: 'Travis::API::V3::Models::Build'.freeze,
+      order:      'id DESC'.freeze
+
+    def slug
+      @slug ||= "#{owner_name}/#{name}"
+    end
+
+    def last_build_on(branch)
+      builds.order('id DESC'.freeze).where(branch: branch, event_type: 'push'.freeze).first
+    end
+  end
+end

lib/travis/api/v3/models/request.rb

@@ -0,0 +1,10 @@
+module Travis::API::V3
+  class Models::Request < Model
+    belongs_to :commit
+    belongs_to :repository
+    belongs_to :owner, polymorphic: true
+    has_many   :builds
+    serialize  :config
+    serialize  :payload
+  end
+end

lib/travis/api/v3/models/ssl_key.rb

@@ -0,0 +1,5 @@
+module Travis::API::V3
+  class Models::SSLKey < Model
+    belongs_to :repository
+  end
+end

lib/travis/api/v3/models/user.rb

@@ -0,0 +1,9 @@
+module Travis::API::V3
+  class Models::User < Model
+    has_many :memberships,   dependent: :destroy
+    has_many :organizations, through: :memberships
+    has_many :permissions,   dependent: :destroy
+    has_many :repositories,  through: :permissions
+    has_many :emails,        dependent: :destroy
+  end
+end

lib/travis/api/v3/queries/build.rb

@@ -3,8 +3,8 @@ module Travis::API::V3
     params :id
 
     def find
-      return ::Build.find_by_id(id) if id
-      raise WrongParams
+      return Models::Build.find_by_id(id) if id
+      raise WrongParams, 'missing build.id'.freeze
     end
   end
 end

lib/travis/api/v3/queries/organization.rb

@@ -3,8 +3,8 @@ module Travis::API::V3
     params :id
 
     def find
-      return ::Organization.find_by_id(id) if id
-      raise WrongParams
+      return Models::Organization.find_by_id(id) if id
+      raise WrongParams, 'missing organization.id'.freeze
     end
   end
 end

lib/travis/api/v3/queries/organizations.rb

@@ -1,7 +1,7 @@
 module Travis::API::V3
   class Queries::Organizations < Query
     def for_member(user)
-      ::Organization.joins(:users).where(users: user_condition(user))
+      Models::Organization.joins(:users).where(users: user_condition(user))
     end
   end
 end

lib/travis/api/v3/queries/repositories.rb

@@ -8,7 +8,7 @@ module Travis::API::V3
 
     def all
       @all ||= begin
-        all = ::Repository
+        all = Models::Repository
         all = all.where(active:  bool(active))  unless active.nil?
         all = all.where(private: bool(private)) unless private.nil?
         all

lib/travis/api/v3/queries/repository.rb

@@ -3,8 +3,8 @@ module Travis::API::V3
     params :id
 
     def find
-      return ::Repository.find_by_id(id) if id
-      raise WrongParams
+      return Models::Repository.find_by_id(id) if id
+      raise WrongParams, 'missing repository.id'.freeze
     end
   end
 end

lib/travis/api/v3/query.rb

@@ -48,7 +48,7 @@ module Travis::API::V3
       case value
       when String       then { login: value    }
       when Integer      then { id:    value    }
-      when ::User  then { id:    value.id }
+      when Models::User then { id:    value.id }
       else raise WrongParams
       end
     end

lib/travis/api/v3/renderer/model_renderer.rb

@@ -47,7 +47,7 @@ module Travis::API::V3
       result
     end
 
-    def render_model(model, type: model.class.name.to_sym, mode: :minimal, **options)
+    def render_model(model, type: model.class.name[/[^:]+$/].to_sym, mode: :minimal, **options)
       Renderer[type].render(model, mode, script_name: script_name, **options)
     end
 
@@ -57,7 +57,7 @@ module Travis::API::V3
       when Array       then value.map { |v   | render_value(v)      }
       when *PRIMITIVE  then value
       when Time        then value.strftime('%Y-%m-%dT%H:%M:%SZ')
-      when Travis::Model then render_model(value)
+      when Model       then render_model(value)
       else raise ArgumentError, 'cannot render %p (%p)' % [value.class, value]
       end
     end

spec/v3/extensions/belongs_to_spec.rb

@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+describe Travis::API::V3::Extensions::BelongsTo do
+  describe 'reading polymorphic relation' do
+    subject(:repo) { Travis::API::V3::Models::Repository.first }
+    example { expect(repo.owner).to be_a(Travis::API::V3::Models::User) }
+  end
+
+  describe 'writing polymorphic relation' do
+    let(:repo) { Travis::API::V3::Models::Repository.create(owner: user) }
+    let(:user) { Travis::API::V3::Models::User.create }
+    after      { repo.destroy; user.destroy }
+
+    example { expect(repo.owner).to be_a(Travis::API::V3::Models::User) }
+    example { expect(::Repository.find(repo.id).owner).to be_a(::User)  }
+  end
+end