Throw error where 'as' not defined

lib/associations/has-many.js

@@ -63,6 +63,11 @@ module.exports = (function() {
      * If self association, this is the target association - Unless we find a pairing association
      * If self association, this is the target association - Unless we find a pairing association
      */
      */
     if (this.isSelfAssociation) {
     if (this.isSelfAssociation) {
+      // check 'as' is defined for many-to-many self-association
+      if (this.through && this.through !== true && !this.as) {
+        throw new Error('\'as\' must be defined for many-to-many self-associations')
+      }
+
       this.targetAssociation = this
       this.targetAssociation = this
     }
     }
 
 
@@ -118,11 +123,6 @@ module.exports = (function() {
       this.isAliased = true
       this.isAliased = true
     } else {
     } else {
       this.as = Utils.pluralize(this.target.name, this.target.options.language)
       this.as = Utils.pluralize(this.target.name, this.target.options.language)
-      if (this.isSelfAssociation && this.doubleLinked && this.as == this.targetAssociation.as) {
-        this.as = this.target.name + Utils.pluralize('Reverse', this.target.options.language)
-        this.associationAccessor = this.as
-        this.isAliased = true
-      }
     }
     }
 
 
     this.accessors = {
     this.accessors = {