Refactor create handlers

Fixes #17.

models/interfaces.go

@@ -3,11 +3,20 @@ package models
 import "github.com/thermokarst/bactdb/Godeps/_workspace/src/github.com/jmoiron/modl"
 
 type base interface {
-	PreCreate(modl.SqlExecutor) error
+	PreInsert(modl.SqlExecutor) error
 	PreUpdate(modl.SqlExecutor) error
 	UpdateError() error
 }
 
+// Create will create a new DB record of a model.
+func Create(b base) error {
+	if err := DBH.Insert(b); err != nil {
+		return nil
+	}
+	return nil
+}
+
+// Update runs a DB update on a model.
 func Update(b base) error {
 	count, err := DBH.Update(b)
 	if err != nil {