SubQuery 1:M fix

related with #1713

lib/dialects/abstract/query-generator.js

@@ -765,11 +765,11 @@ module.exports = (function() {
               , attrLeft        = primaryKeysLeft[0]
               , tableRight      = association.associationType === 'BelongsTo' ? parentTable : as
               , attrRight       = association.identifier
-              , where
+              , joinOn
 
             // Filter statement
             // Used by both join and subquery where
-            where =
+            joinOn =
               // Left side
               (
                 ( subQuery && !include.subQuery && include.parent.subQuery && !( include.hasParentRequired && include.hasParentWhere ) ) && self.quoteIdentifier(tableLeft + "." + attrLeft) ||
@@ -785,18 +785,25 @@ module.exports = (function() {
               )
 
             // Generate join SQL
-            joinQueryItem += joinType + self.quoteTable(table, as) + " ON "
-              joinQueryItem += where
+            joinQueryItem += joinType + self.quoteTable(table, as) + " ON " + joinOn
 
             if (include.where) {
-              joinQueryItem += " AND "+self.getWhereConditions(include.where, self.sequelize.literal(self.quoteIdentifier(as)), include.daoFactory, whereOptions)
+              joinQueryItem += " AND " + ( where = self.getWhereConditions(include.where, self.sequelize.literal(self.quoteIdentifier(as)), include.daoFactory, whereOptions) )
 
               // If its a multi association we need to add a where query to the main where (executed in the subquery)
               if (subQuery && association.isMultiAssociation && include.required) {
                 if (!options.where) options.where = {}
 
                 // Creating the as-is where for the subQuery, checks that the required association exists
-                options.where["__"+as] = self.sequelize.asIs("(SELECT "+self.quoteIdentifier(attrRight)+" FROM " + self.quoteTable(table, as) + " WHERE " + where + " LIMIT 1) IS NOT NULL")
+                options.where["__"+as] = self.sequelize.asIs([ '(',
+
+                  "SELECT " + self.quoteIdentifier(attrRight),
+                  "FROM " + self.quoteTable(table, as),
+                  "WHERE " + joinOn,
+                  "AND " + where,
+                  "LIMIT 1",
+
+                ')', 'IS NOT NULL'].join(' '))
               }
             }
           }