完成上传头像功能

app/controllers/blogs_controller.rb

@@ -53,7 +53,19 @@ class BlogsController < ApplicationController
   end
 
   def upload_img
-    
+    @result = {status: false, message: '', text_id: params[:upload][:text_id] || ''}
+    begin
+      if params[:upload].present? && params[:upload][:img].present? && remotipart_submitted?
+        upload_info = upload_picture params[:upload][:img]
+        @result[:status] = true
+        @result[:message] = "![#{upload_info[:file_name]}](/images/#{upload_info[:real_file_name]})"
+      end
+    rescue UploadException => e
+      @result[:message] = e.message
+    end
+    respond_to do |format|
+      format.js
+    end
   end
 
   def preview
@@ -68,6 +80,8 @@ class BlogsController < ApplicationController
   protected
 
   def upload_picture(file)
-    
+    upload_path = File.join Rails.root, 'public/images'
+    upload = SimpleFileupload.new upload_path:upload_path, max_size: 1024*1024*2, type: 'image'
+    upload_info = upload.upload file
   end
 end

app/views/blogs/upload_img.js.haml

@@ -0,0 +1,8 @@
+- if @result[:status]
+  :plain
+    var old_val = $("##{@result[:text_id]}").val();
+    $("##{@result[:text_id]}").val(old_val + "#{@result[:message]}");
+    $('#upload_modal').modal('hide');
+- else
+  :plain
+    $('#error').text("#{@result[:message]}");