Fix errant references to this.options.underscored in associations.

The correct references should always be in relation to this.source
or this.target, for their respective tables.

lib/associations/has-many.js

@@ -137,14 +137,14 @@ module.exports = (function() {
       , self              = this
       , self              = this
       , primaryKeyDeleted = false
       , primaryKeyDeleted = false
 
 
-    this.identifier = this.options.foreignKey || Utils._.underscoredIf(Utils.singularize(this.source.tableName, this.source.options.language) + "Id", this.options.underscored)
+    this.identifier = this.options.foreignKey || Utils._.underscoredIf(Utils.singularize(this.source.tableName, this.source.options.language) + "Id", this.source.options.underscored)
 
 
     // is there already a single sided association between the source and the target?
     // is there already a single sided association between the source and the target?
     // or is the association on the model itself?
     // or is the association on the model itself?
     if ((this.isSelfAssociation && Object(this.through) === this.through) || doubleLinked) {
     if ((this.isSelfAssociation && Object(this.through) === this.through) || doubleLinked) {
       // remove the obsolete association identifier from the source
       // remove the obsolete association identifier from the source
       if (this.isSelfAssociation) {
       if (this.isSelfAssociation) {
-        this.foreignIdentifier = Utils._.underscoredIf((this.options.as || this.target.tableName) + 'Id', this.options.underscored)
+        this.foreignIdentifier = Utils._.underscoredIf((this.options.as || this.target.tableName) + 'Id', this.target.options.underscored)
       } else {
       } else {
         this.foreignIdentifier = this.targetAssociation.identifier
         this.foreignIdentifier = this.targetAssociation.identifier
         this.targetAssociation.foreignIdentifier = this.identifier
         this.targetAssociation.foreignIdentifier = this.identifier

lib/associations/has-one.js

@@ -14,7 +14,7 @@ module.exports = (function() {
     this.as = this.options.as
     this.as = this.options.as
 
 
     if (this.isSelfAssociation && !this.options.foreignKey && !!this.as) {
     if (this.isSelfAssociation && !this.options.foreignKey && !!this.as) {
-      this.options.foreignKey = Utils._.underscoredIf(Utils.singularize(this.as, this.target.options.language) + "Id", this.options.underscored)
+      this.options.foreignKey = Utils._.underscoredIf(Utils.singularize(this.as, this.target.options.language) + "Id", this.target.options.underscored)
     }
     }
 
 
     if (this.as) {
     if (this.as) {
@@ -42,7 +42,7 @@ module.exports = (function() {
       , sourceKeys    = Object.keys(this.source.primaryKeys)
       , sourceKeys    = Object.keys(this.source.primaryKeys)
       , keyType       = ((this.source.hasPrimaryKeys && sourceKeys.length === 1) ? this.source.rawAttributes[sourceKeys[0]].type : DataTypes.INTEGER)
       , keyType       = ((this.source.hasPrimaryKeys && sourceKeys.length === 1) ? this.source.rawAttributes[sourceKeys[0]].type : DataTypes.INTEGER)
 
 
-    this.identifier = this.options.foreignKey || Utils._.underscoredIf(Utils.singularize(this.source.tableName, this.source.options.language) + "Id", this.options.underscored)
+    this.identifier = this.options.foreignKey || Utils._.underscoredIf(Utils.singularize(this.source.tableName, this.source.options.language) + "Id", this.source.options.underscored)
     newAttributes[this.identifier] = { type: this.options.keyType || keyType }
     newAttributes[this.identifier] = { type: this.options.keyType || keyType }
     Utils._.defaults(this.target.rawAttributes, newAttributes)
     Utils._.defaults(this.target.rawAttributes, newAttributes)
     Helpers.addForeignKeyConstraints(this.target.rawAttributes[this.identifier], this.source, this.target, this.options)
     Helpers.addForeignKeyConstraints(this.target.rawAttributes[this.identifier], this.source, this.target, this.options)