added mongoid support

.gitignore

@@ -7,3 +7,4 @@
 /pkg/
 /spec/reports/
 /tmp/
+.idea

README.md

@@ -12,7 +12,7 @@ This gem gives a few convenient methods for working with JSONAPI. It is inspired
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'json_api_responders'
+gem 'json_api_responders', git: 'https://github.com/aziflaj/json_api_responders.git', branch: 'mongoid'
 ```
 
 And then execute:
@@ -58,13 +58,14 @@ This method requires HTTP status code and an optional parameter explaining the e
 
 
 ## Configuration
-Currently you can only configure which options are required to be passed through the `respond_with` method. These required options are categorized by the controller's actions. Bellow you can find an example:
+Currently you can configure which options are required to be passed through the `respond_with` method and the datadabase adapter. These required options are categorized by the controller's actions. Below you can find an example:
 
     JsonApiResponders.configure do |config|
         config.required_options = {
           index: [:each_serializer],
           create: [:serializer]
         }
+        config.adapter = :mongoid # default is :active_record
     end
     ...
     def create
@@ -74,6 +75,8 @@ Currently you can only configure which options are required to be passed through
 
 If `:serializer` was left out of the above `respond_with` method you would see the `JsonApiResponders::Errors::RequiredOptionMissingError` be raised.
 
+Currently, the only database adaptors are Active Record and Mongoid.
+
 ## Responses
 
 ### index

lib/json_api_responders.rb

@@ -17,7 +17,11 @@ def self.config
   end
 
   def self.included(base)
-    base.rescue_from ActiveRecord::RecordNotFound, with: :record_not_found!
+    if self.config.adapter == :active_record
+      base.rescue_from ActiveRecord::RecordNotFound, with: :record_not_found!
+    elsif self.config.adapter == :mongoid
+      base.rescue_from Mongoid::Errors::DocumentNotFound, with: :record_not_found!
+    end
     base.rescue_from ActionController::ParameterMissing, with: :parameter_missing!
   end
 

lib/json_api_responders/config.rb

@@ -3,6 +3,8 @@ class Config
     attr_reader :required_options
     DEFAULT_RENDER_METHOD = :json
     RENDER_METHODS = [:jsonapi, :json]
+    DEFAULT_ADAPTER = :active_record
+    ADAPTERS = [:active_record, :mongoid]
 
     def required_options=(opts = {})
       @required_options = opts
@@ -31,6 +33,18 @@ def render_method=(render_method)
       end
     end
 
+    def adapter
+      @adapter || DEFAULT_ADAPTER
+    end
+
+    def adapter=(adapter)
+      if ADAPTERS.include?(adapter)
+        @adapter = adapter
+      else
+        raise JsonApiResponders::Errors::InvalidDatabaseAdapterError, adapter
+      end
+    end
+
     private
 
     def action(options)

lib/json_api_responders/errors.rb

@@ -1,3 +1,5 @@
+require 'json_api_responders/config'
+
 module JsonApiResponders
   module Errors
     class UnknownHTTPStatus < StandardError
@@ -65,5 +67,19 @@ def message
         'Status is not defined'
       end
     end
+
+    class InvalidDatabaseAdapterError < StandardError
+      attr_reader :adapter
+
+      def initialize(adapter)
+        @adapter = adapter
+        super(message)
+      end
+
+      def message
+        "Unknown database adapter '#{adapter}'.\n"\
+        "Accepted adapters are #{JsonApiResponders::Config::ADAPTERS.join(', ')}"
+      end
+    end
   end
 end

spec/lib/json_api_responders/config/config_spec.rb

@@ -1,4 +1,5 @@
 require 'spec_helper'
+
 describe JsonApiResponders::Config do
   let(:config) { JsonApiResponders.config }
 
@@ -36,6 +37,42 @@
     end
   end
 
+  # Database Adapter specs
+
+  context 'when config database adapter is not set' do
+    after { clear_config }
+
+    it 'adapter is set to :active_record' do
+      expect(config.adapter).to eq JsonApiResponders::Config::DEFAULT_ADAPTER
+    end
+  end
+
+  context 'when config database adapter is :mongoid' do
+    before do
+      JsonApiResponders.configure do |config|
+        config.adapter = :mongoid
+      end
+    end
+    after { clear_config }
+
+    it 'adapter is set to :mongoid' do
+      expect(config.adapter).to eq :mongoid
+    end
+  end
+
+  context 'when config database adapter is :invalid' do
+    after { clear_config }
+    subject do
+      JsonApiResponders.configure do |config|
+        config.adapter = :invalid
+      end
+    end
+
+    it 'raises an error' do
+      expect{ subject }.to raise_error(JsonApiResponders::Errors::InvalidDatabaseAdapterError)
+    end
+  end
+
   private
 
   def clear_config

spec/support/fake_classes.rb

@@ -3,6 +3,13 @@ class RecordNotFound < StandardError
   end
 end
 
+module Mongoid
+  module Errors
+    class DocumentNotFound < StandardError
+    end
+  end
+end
+
 module ActionController
   class ParameterMissing
   end