add new files

db/migrate/20170121053223_create_batch_line_items.rb

@@ -0,0 +1,12 @@
+class CreateBatchLineItems < ActiveRecord::Migration[5.0]
+  def change
+    create_table :batch_line_items do |t|    
+        t.references :batch	  
+        t.string  :serial_no , null: false
+    		t.string  :wristband_code , null: false    
+    		t.string  :manufacture_uid ,null:false
+    		t.string  :card_type,:default => "child"		
+    		t.timestamps null: false
+    end 
+  end
+end