解决用户主页500错误

app/controllers/users_controller.rb

@@ -162,7 +162,7 @@ class UsersController < ApplicationController
       "show_bids" => true,
     }
     #####fq
-    @message = MessagesForUser.find_message(@user.id)
+  
     JournalsForMessage.reference_message(@user.id)
     # show projects based on current user visibility
     @memberships = @user.memberships.all(:conditions => Project.visible_condition(User.current))

app/models/messages_for_bids.rb

@@ -1,3 +0,0 @@
-class MessagesForBids < ActiveRecord::Base
-  attr_accessible :bid_id, :message, :user_id
-end

app/models/messages_for_user.rb

@@ -1,51 +0,0 @@
-#  fq
-class MessagesForUser < ActiveRecord::Base
-  attr_accessible :message, :messager_id, :user_id
-  belongs_to :user
-
-  MESSAGE_LENGTH_LIMIT = 60
-  
-  validate :validate_user
-  validate :validate_messager
-  validates_presence_of :messager_id, :user_id, :message
-  validates_length_of :message, :maximum => MESSAGE_LENGTH_LIMIT
-  
-  def self.leave_message(messager_id, user_id, message)
-    unless messager_id == user_id
-      @messages_for_user = self.new
-      @messages_for_user.messager_id = messager_id
-      @messages_for_user.user_id = user_id
-      @messages_for_user.message = message
-      @messages_for_user.save
-      true
-    else
-      false
-    end  
-  end
-  
-  def self.find_message(user_id)
-    user = User.find(user_id)
-    @message_table_for_user = user.messages_for_users.to_a
-    @message_table_for_user
-  end
-  
-  def find_messager
-    @messager = User.where(:id =>messager_id)
-    @messager
-  end
-  
-  def self.delete_message(message_id)
-    MessagesForUser.delete_all "id = #{message_id}"
-  end
-  
-  #验证user是否存在
-  def validate_user
-    errors.add :user_id, :invalid if user.nil? || !user.active?
-  end
-  
-  #验证messager是否存在
-  def validate_messager
-    user = User.where("id = ?", messager_id).to_a.first
-    errors.add :messager_id, :invalid if user.nil? || !user.active?
-  end
-end