Merge pull request #235 from ootoovak/master

Add a check so tag names can not be longer than 255 characters

lib/acts_as_taggable_on/tag.rb

@@ -12,6 +12,7 @@ class Tag < ::ActiveRecord::Base
 
     validates_presence_of :name
     validates_uniqueness_of :name
+    validates_length_of :name, :maximum => 255
 
     ### SCOPES:
 
@@ -73,4 +74,4 @@ def comparable_name(str)
         end
     end
   end
-end
+end

spec/acts_as_taggable_on/tag_spec.rb

@@ -101,6 +101,16 @@
     @tag.errors[:name].should == []
   end
 
+  it "should limit the name length to 255 or less characters" do
+    @tag.name = "fgkgnkkgjymkypbuozmwwghblmzpqfsgjasflblywhgkwndnkzeifalfcpeaeqychjuuowlacmuidnnrkprgpcpybarbkrmziqihcrxirlokhnzfvmtzixgvhlxzncyywficpraxfnjptxxhkqmvicbcdcynkjvziefqzyndxkjmsjlvyvbwraklbalykyxoliqdlreeykuphdtmzfdwpphmrqvwvqffojkqhlzvinqajsxbszyvrqqyzusxranr"
+    @tag.valid?
+    @tag.errors[:name].should == ["is too long (maximum is 255 characters)"]
+
+    @tag.name = "fgkgnkkgjymkypbuozmwwghblmzpqfsgjasflblywhgkwndnkzeifalfcpeaeqychjuuowlacmuidnnrkprgpcpybarbkrmziqihcrxirlokhnzfvmtzixgvhlxzncyywficpraxfnjptxxhkqmvicbcdcynkjvziefqzyndxkjmsjlvyvbwraklbalykyxoliqdlreeykuphdtmzfdwpphmrqvwvqffojkqhlzvinqajsxbszyvrqqyzusxran"
+    @tag.valid?
+    @tag.errors[:name].should == []
+  end
+
   it "should equal a tag with the same name" do
     @tag.name = "awesome"
     new_tag = ActsAsTaggableOn::Tag.new(:name => "awesome")