Added SIMULATE_MIGRATION environment variable to test migration

Added SIMULATE_MIGRATION environment variable to test migration

Added SIMULATE_MIGRATION environment variable to test migration fix

Added SIMULATE_MIGRATION environment variable to test migration fix

Added SIMULATE_MIGRATION environment variable to test migration fix

Author: emresebat

lib/migration.js

@@ -213,7 +213,11 @@ function mixinMigration(PostgreSQL) {
       var found = self.searchForPropertyInActual(
         model, self.column(model, propName), actualFields);
       if (!found && self.propertyHasNotBeenDeleted(model, propName)) {
-        sql.push('ADD COLUMN ' + self.addPropertyToActual(model, propName));
+        if (process.env.SIMULATE_MIGRATION && process.env.SIMULATE_MIGRATION === 'true') {
+          console.log('ADD COLUMN %s (%s)', self.addPropertyToActual(model, propName), model)
+        } else {
+          sql.push('ADD COLUMN ' + self.addPropertyToActual(model, propName));
+        }
       }
     });
     if (sql.length > 0) {
@@ -322,7 +326,11 @@ function mixinMigration(PostgreSQL) {
         return;
       }
       if (actualFieldNotPresentInModel(actualField, model)) {
-        sql.push('DROP COLUMN ' + self.escapeName(actualField.column));
+        if (process.env.SIMULATE_MIGRATION && process.env.SIMULATE_MIGRATION === 'true') {
+          console.log('DROP COLUMN %s (%s)', self.escapeName(actualField.column), model)
+        } else {
+          sql.push('DROP COLUMN ' + self.escapeName(actualField.column));
+        }
       }
     });
     if (sql.length > 0) {