graph2: Added channel mutations.

models/channels/edit.go

@@ -0,0 +1,35 @@
+package channels
+
+import (
+	"git.aiterp.net/rpdata/api/models"
+	"github.com/globalsign/mgo/bson"
+)
+
+// Edit edits a channels
+func Edit(channel models.Channel, logged, hub *bool, eventName, locationName *string) (models.Channel, error) {
+	mutation := bson.M{}
+
+	if logged != nil && *logged != channel.Logged {
+		mutation["logged"] = *logged
+	}
+	if hub != nil && *hub != channel.Hub {
+		mutation["hub"] = *hub
+	}
+	if eventName != nil && *eventName != channel.EventName {
+		mutation["eventName"] = *eventName
+	}
+	if locationName != nil && *locationName != channel.LocationName {
+		mutation["locationName"] = *locationName
+	}
+
+	if len(mutation) == 0 {
+		return channel, nil
+	}
+
+	err := collection.UpdateId(channel.Name, bson.M{"$set": mutation})
+	if err != nil {
+		return models.Channel{}, err
+	}
+
+	return channel, nil
+}