From c34c514bbaa474da28e02b1eb61d5a89ac9c2e99 Mon Sep 17 00:00:00 2001
From: supar <paulrez@gmail.com>
Date: Fri, 24 Oct 2014 14:15:31 +0400
Subject: [PATCH] Skip add DEFAULT if the field is in relations (rel or
 reverse)

---
 orm/cmd_utils.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/orm/cmd_utils.go b/orm/cmd_utils.go
index 8304da6b..c7910ca2 100644
--- a/orm/cmd_utils.go
+++ b/orm/cmd_utils.go
@@ -239,3 +239,46 @@ func getDbCreateSql(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 
 	return
 }
+
+// Get string value for the attribute "DEFAULT" for the CREATE, ALTER commands
+func getColumnDefault(fi *fieldInfo) string {
+	var (
+		v, t, d string
+	)
+
+	// Skip default attribute if field is in relations
+	if fi.rel || fi.reverse {
+		return v
+	}
+
+	t = " DEFAULT '%s' "
+
+	// These defaults will be useful if there no config value orm:"default" and NOT NULL is on
+	switch fi.fieldType {
+	case TypeDateField:
+		d = "0000-00-00"
+
+	case TypeDateTimeField:
+		d = "0000-00-00 00:00:00"
+
+	case TypeBooleanField, TypeBitField, TypeSmallIntegerField, TypeIntegerField,
+		TypeBigIntegerField, TypePositiveBitField, TypePositiveSmallIntegerField,
+		TypePositiveIntegerField, TypePositiveBigIntegerField, TypeFloatField,
+		TypeDecimalField:
+		d = "0"
+	}
+
+	if fi.colDefault {
+		if !fi.initial.Exist() {
+			v = fmt.Sprintf(t, "")
+		} else {
+			v = fmt.Sprintf(t, fi.initial.String())
+		}
+	} else {
+		if !fi.null {
+			v = fmt.Sprintf(t, d)
+		}
+	}
+
+	return v
+}