Made FMD properly see scala.math.BigDecimal as a BigDecimal when creating column definition

Author: davewhittaker

src/main/scala/org/squeryl/internals/FieldMetaData.scala

@@ -168,8 +168,9 @@ class FieldMetaData(
    * the most appropriate column type  
    */
   def length: Int =
-    if(columnAnnotation == None || columnAnnotation.get.length == -1)
+    if(columnAnnotation == None || columnAnnotation.get.length == -1) {
       FieldMetaData.defaultFieldLength(wrappedFieldType, this)
+    }
     else
       columnAnnotation.get.length
 
@@ -545,10 +546,12 @@ object FieldMetaData {
   def defaultFieldLength(fieldType: Class[_], fmd: FieldMetaData) = {
     if(classOf[String].isAssignableFrom(fieldType))
       fmd.schema.defaultLengthOfString      
-    else if(classOf[BigDecimal].isAssignableFrom(fieldType))
+    else if(classOf[java.math.BigDecimal].isAssignableFrom(fieldType) || classOf[scala.math.BigDecimal].isAssignableFrom(fieldType)) {
       fmd.schema.defaultSizeOfBigDecimal._1
-    else
+    }
+    else {
       fmd.schema.fieldMapper.defaultColumnLength(fieldType)
+    }
   }
 
   def detectScalapOnClasspath(): Boolean = {