diff --git a/lib/ext/proposal.rb b/lib/ext/proposal.rb
new file mode 100644
index 0000000..8635c8b
--- /dev/null
+++ b/lib/ext/proposal.rb
@@ -0,0 +1,11 @@
+require_relative '../../../proposals_discussion/lib/proposals_discussion_plugin/proposal.rb'
+
+class ProposalsDiscussionPlugin::Proposal < TinyMceArticle
+  validate :abstract_max_length
+
+  def abstract_max_length
+    if abstract.size > 200 and environment.plugin_enabled? "Dialoga"
+      errors.add(:proposal, "Proposal must be no longer than 200 characters")
+    end
+  end
+end
diff --git a/test/unit/proposal_test.rb b/test/unit/proposal_test.rb
new file mode 100644
index 0000000..a6b0555
--- /dev/null
+++ b/test/unit/proposal_test.rb
@@ -0,0 +1,28 @@
+require_relative '../test_helper'
+
+class ProposalTest < ActiveSupport::TestCase
+
+  def setup
+    @profile = fast_create(Community)
+    @person = fast_create(Person)
+    @discussion = ProposalsDiscussionPlugin::Discussion.create!(:name => 'discussion', :profile => person, :allow_topics => false)
+    @proposal = ProposalsDiscussionPlugin::Proposal.new(:name => 'test', :abstract => 'abstract', :profile => @profile, :parent => @discussion)
+    @proposal.created_by = @person
+  end
+
+  attr_reader :profile, :proposal, :person, :discussion
+
+  should 'should not save a proposal with an abstract > 200 chars' do
+    proposal.abstract = 201.times.map{'B'}.join
+    refute proposal.valid?
+    refute proposal.save
+  end
+
+  should 'should save a proposal with  abstract <= 200 chars' do
+    proposal.abstract = 200.times.map{'B'}.join
+    assert proposal.valid?
+    assert proposal.save
+  end
+
+
+end
--
libgit2 0.21.2