diff --git a/app/controllers/shixuns_controller.rb b/app/controllers/shixuns_controller.rb
index df6de775a..32a2c6ef9 100644
--- a/app/controllers/shixuns_controller.rb
+++ b/app/controllers/shixuns_controller.rb
@@ -623,19 +623,22 @@ class ShixunsController < ApplicationController
   end
 
   def add_collaborators
-      member_ids = "(" + @shixun.shixun_members.map(&:user_id).join(',') +  ")"
-      user_name = "%#{params[:user_name].to_s.strip}%"
-      school_name = "%#{params[:school_name].to_s.strip}%"
-			if user_name.present? || school_name.present?
-				page = params[:page] || 1
-				limit = params[:limit] || 20
-				@users = User.joins(user_extension: :school).where("users.id not in #{member_ids} AND users.status = 1 AND
+		member_ids = "(" + @shixun.shixun_members.map(&:user_id).join(',') + ")"
+		user_name = "%#{params[:user_name].to_s.strip}%"
+		school_name = "%#{params[:school_name].to_s.strip}%"
+		if user_name.present? || school_name.present?
+			@users = User.joins(user_extension: :school).where("users.id not in #{member_ids} AND users.status = 1 AND
 																								 LOWER(users.lastname) LIKE '#{user_name}' AND LOWER(schools.name) LIKE
-																								 '#{school_name}'").distinct.page(page).per(limit)
-			else
-				@users = User.none
-			end
-  end
+																								 '#{school_name}'")
+		else
+			@users = User.none
+		end
+		page = params[:page] || 1
+		limit = params[:limit] || 20
+		@users_count = @users.count
+		@users = @users.page(page).per(limit)
+
+	end
 
   def shixun_members_added
     raise("user_ids 不能为空!") if params[:user_ids].blank?
diff --git a/app/views/shixuns/add_collaborators.json.jbuilder b/app/views/shixuns/add_collaborators.json.jbuilder
index ab4716681..e77fd41a0 100644
--- a/app/views/shixuns/add_collaborators.json.jbuilder
+++ b/app/views/shixuns/add_collaborators.json.jbuilder
@@ -2,6 +2,7 @@
 json.array! @users do |user|
   json.user_id user.id
   json.identify user.identity
-  json.nickname user.nickname
+  json.nickname user.real_name
   json.school_name user.school_name
-end
\ No newline at end of file
+end
+json.user_count @users_count
\ No newline at end of file