From c9a2db70b6eb7eb631259aed72b37287a73b92d4 Mon Sep 17 00:00:00 2001
From: Scimonster <tehalmightyscimonster@gmail.com>
Date: Mon, 17 Jun 2019 22:46:49 +0300
Subject: [PATCH] Remove duplicates in migration actions

Naive comparison to previous item after it has been sorted
Makes generated migration cleaner
---
 lib/migrate.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/migrate.js b/lib/migrate.js
index a41fab8..a02b406 100644
--- a/lib/migrate.js
+++ b/lib/migrate.js
@@ -575,6 +575,7 @@ const sortActions = function(actions)
         return 0;    
     });    
     
+    // sort dependencies
     for (let k = 0; k <= actions.length ; k++)
         for (let i = 0; i < actions.length ; i++)
         {
@@ -606,6 +607,14 @@ const sortActions = function(actions)
     
             }
         }
+        
+    // remove duplicate changeColumns
+    for (let i = 0; i < actions.length ; i++)
+    {
+        if (_.isEqual(actions[i], actions[i-1])) {
+            actions.splice(i, 1);
+        }
+    }
 };