Applied Tomas Rich's patch (with some refactoring) to introduce a new api method

that allows task creation using the same syntax as the "Send to kGTD" quicksilver plugin:

Put an @ in front of context name and > in front of project name so "Call jim @calls > Fix house"
would create the "Call jim" todo in the calls context and the Fix house project.

If there aren't any exact matches, it selects the first context and project that starts with the given strings,
so "Call jim @cal >Fix h" would also work.

If no project and no context are give,
it works exactly like the NewTodo.

It also supports the ability to create a new project on the fly by prefacing
the project with "new:", for example "Call jim @calls > new:Clean the porch"

The new api method the new api method has the name NewRichTodo, which neither Tomas nor I like very much.
Perhaps you have an idea for a better name?

Closes #384.

Also, I removed duplication between context and project models by
introducing acts_as_namepart_finder and acts_as_todo_container.


git-svn-id: http://www.rousette.org.uk/svn/tracks-repos/trunk@333 a4c988fc-2ded-0310-b66e-134b36920a42

tracks/app/controllers/backend_controller.rb

@@ -6,15 +6,41 @@ class BackendController < ApplicationController
   def new_todo(username, token, context_id, description)
     check_token_against_user_word(username, token)
     check_context_belongs_to_user(context_id)
-
-    item = @user.todos.build
-    item.description = description
-    item.context_id = context_id
-    item.save
-    raise item.errors.full_messages.to_s if item.new_record?
+    item = create_todo(description, context_id)
     item.id
   end
   
+  def new_rich_todo(username, token, default_context_id, description)
+    check_token_against_user_word(username,token)
+    description,context = split_by_char('@',description)
+    description,project = split_by_char('>',description)
+    if(!context.nil? && project.nil?)
+      context,project = split_by_char('>',context)
+    end
+
+    context_id = default_context_id
+    unless(context.nil?)
+      found_context = @user.contexts.find_by_namepart(context)
+      context_id = found_context.id unless found_context.nil?
+    end
+    check_context_belongs_to_user(context_id)
+    
+    project_id = nil
+    unless(project.blank?)
+      if(project[0..3].downcase == "new:")
+        found_project = @user.projects.build
+        found_project.name = project[4..255+4].strip
+        found_project.save!
+      else
+        found_project = @user.projects.find_by_namepart(project)
+      end
+      project_id = found_project.id unless found_project.nil?
+    end
+
+    todo = create_todo(description, context_id, project_id)
+    todo.id
+  end
+  
   def list_contexts(username, token)
     check_token_against_user_word(username, token)
     
@@ -42,7 +68,26 @@ class BackendController < ApplicationController
         raise(CannotAccessContext, "Cannot access a context that does not belong to this user.")
       end
     end
-  
+    
+    def create_todo(description, context_id, project_id = nil)
+      item = @user.todos.build
+      item.description = description
+      item.context_id = context_id
+      item.project_id = project_id unless project_id.nil?
+      item.save
+      raise item.errors.full_messages.to_s if item.new_record?
+      item
+    end
+    
+    def split_by_char(separator,string)
+      parts = string.split(separator)
+      return safe_strip(parts[0]), safe_strip(parts[1])
+    end
+    
+    def safe_strip(s)
+      s.strip! unless s.nil?
+      s
+    end
 end
 
 class InvalidToken < RuntimeError; end