[#6441] Block deleting deliverables on closed or locked contracts

app/models/deliverable.rb

@@ -33,6 +33,9 @@ class Deliverable < ActiveRecord::Base
   delegate "locked?", :to => :contract, :prefix => true, :allow_nil => true
 
   # Callbacks
+  before_destroy :block_on_locked_contracts
+  before_destroy :block_on_closed_contracts
+  
   def after_initialize
     self.status = "open" unless self.status.present?
   end
@@ -139,6 +142,14 @@ class Deliverable < ActiveRecord::Base
   def noop(message="")
   end
 
+  def block_on_locked_contracts
+    !contract_locked?
+  end
+
+  def block_on_closed_contracts
+    !contract_closed?
+  end
+
   def to_s
     title
   end

app/views/deliverables/_details_row.html.erb

@@ -7,7 +7,7 @@
                   <div class="info">
                     <div class="title">
                       <%= link_to(l(:button_edit), edit_contract_deliverable_path(@project, contract, deliverable), :class => 'icon icon-edit') %>
-                      <%= link_to(l(:button_delete), contract_deliverable_path(@project, contract, deliverable), :method => :delete, :confirm => l(:text_are_you_sure), :class => 'icon icon-del') %>
+                      <%= link_to(l(:button_delete), contract_deliverable_path(@project, contract, deliverable), :method => :delete, :confirm => l(:text_are_you_sure), :class => 'icon icon-del') if contract.open? %>
                     </div>
                     
                     <%= textilizable(deliverable, :notes) %>