variable name more meaningful

Author: Rafał Trojanowski

README.md

@@ -53,7 +53,8 @@ is_primary :on=>'is_default', :scope=>'site_id'
                           # Scope can be defined as array of params
 :scope => ['site_id', 'language_code']
 :scope => ['polymorphic_id', 'polymorphic_type']
-:mark_first => false      # Do not mark first record as default
+:auto_primary_record => false   # if you don't want primary record
+                                # to be set automatically (default: true)
 ```
 
 ##Requirements

lib/primary.rb

@@ -2,9 +2,9 @@ module Primary
   def is_primary options={}
     cattr_accessor :primary_is_primary_opts
     self.primary_is_primary_opts = options.reverse_merge({
-      :on         => :is_primary,
-      :scope      => nil,
-      :mark_first => true
+      :on                  => :is_primary,
+      :scope               => nil,
+      :auto_primary_record => true
     })
 
     before_save :primary_is_primary_mark
@@ -15,7 +15,7 @@ module InstanceMethods
     private
       def primary_is_primary_mark
         options = self.class.primary_is_primary_opts
-        return unless !!options[:mark_first]
+        return unless !!options[:auto_primary_record]
 
         check = get_primary_scope(options)
         if check.count == 0

spec/dummy/app/models/background.rb

@@ -1,5 +1,5 @@
 class Background < ActiveRecord::Base
-  is_primary mark_first: false
+  is_primary auto_primary_record: false
 
   attr_accessible :is_primary, :url
 end

spec/models/background_spec.rb

@@ -2,7 +2,7 @@
 
 describe Background do
 
-  context 'mark_first is false' do
+  context 'auto_primary_record is false' do
     it "should not be marked as default if it's first record" do
       background = FactoryGirl.build(:background)
       background.save