diff --git a/app/controllers/colleges_controller.rb b/app/controllers/colleges_controller.rb
index 960030c9..fff508a8 100644
--- a/app/controllers/colleges_controller.rb
+++ b/app/controllers/colleges_controller.rb
@@ -31,9 +31,9 @@ class CollegesController < ApplicationController
   end
 
   def verification_school_identifier
-    school = School.where(:identifier => params[:identifier]).first
-    status = school.present? ? 1 : 0
-    render :json => {status: status}
+    schools = School.where(identifier: params[:identifier])
+    schools = schools.where('id != ?', params[:school_id]) if params[:school_id].present?
+    render :json => { status: schools.exists? ? 1 : 0 }
   end
 
   def online_school
diff --git a/app/controllers/managements/schools_controller.rb b/app/controllers/managements/schools_controller.rb
index f27e00ae..a5c789ff 100644
--- a/app/controllers/managements/schools_controller.rb
+++ b/app/controllers/managements/schools_controller.rb
@@ -4,8 +4,8 @@ class Managements::SchoolsController < Managements::BaseController
 
   def statistics
     @sub_type = 1
-    params[:sort_by] = :teacher_count if params[:sort_by].blank?
-    params[:sort_direction] = :desc if params[:sort_direction].blank?
+    params[:sort_by] = params[:sort_by].presence || :teacher_count
+    params[:sort_direction] = params[:sort_direction].presence || :desc
 
     service = Management::SchoolReportService.new(params)
     @obj_count, @schools = service.call
@@ -20,8 +20,8 @@ class Managements::SchoolsController < Managements::BaseController
   def data_grow
     @sub_type = 2
     params[:data_type] ||= 'grow'
-    params[:sort_by] = :teacher_increase_count if params[:sort_by].blank?
-    params[:sort_direction] = :desc if params[:sort_direction].blank?
+    params[:sort_by] = params[:sort_by].presence || :teacher_increase_count
+    params[:sort_direction] = params[:sort_direction].presence || :desc
 
     service = Management::SchoolDataGrowService.new(params)
     @grow_summary = service.grow_summary
@@ -31,7 +31,7 @@ class Managements::SchoolsController < Managements::BaseController
   end
 
   def data_contrast
-    params[:contrast_column] = :teacher_increase_count if params[:contrast_column].blank?
+    params[:contrast_column] = params[:contrast_column].presence || :teacher_increase_count
     params[:sort_direction] ||= :desc
     params[:sort_by] = :percentage
 
diff --git a/app/controllers/managements_controller.rb b/app/controllers/managements_controller.rb
index f67099b9..1eab7439 100644
--- a/app/controllers/managements_controller.rb
+++ b/app/controllers/managements_controller.rb
@@ -1518,7 +1518,7 @@ end
     if search.blank?
       @schools = School.where("0=0")
     else
-      @schools = School.where("name like '%#{search}%'")
+      @schools = School.where("name like ?", "%#{search}%")
     end
     if params[:index] == '8'
       @schools = @schools.reorder("created_at #{@sx_order}")
diff --git a/app/views/managements/upload_logo.html.erb b/app/views/managements/upload_logo.html.erb
index 5da56c47..487f3eba 100644
--- a/app/views/managements/upload_logo.html.erb
+++ b/app/views/managements/upload_logo.html.erb
@@ -130,7 +130,10 @@
         if($("#unit_head_route").val().trim() !=""){
             $.ajax({
                 url: "<%= verification_school_identifier_colleges_path %>",
-                data: {identifier: $("#unit_head_route").val().trim()},
+                data: {
+                  school_id: <%= @school.id %>,
+                  identifier: $("#unit_head_route").val().trim()
+                },
                 async:false,
                 success: function (data) {
                     if(data.status == 0){