Changed channels graphql query to use filter, added eventName and locationName filters

graphql/resolver/queries/channels.go

@@ -9,14 +9,29 @@ import (
 
 // ChannelsArgs is args for channel query
 type ChannelsArgs struct {
-	Logged *bool
+	Filter *struct {
+		Logged       *bool
+		EventName    *string
+		LocationName *string
+	}
 }
 
 // Channels resolves the channels query
 func (r *QueryResolver) Channels(ctx context.Context, args *ChannelsArgs) ([]*types.ChannelResolver, error) {
-	channels, err := channel.List(args.Logged != nil && *args.Logged)
-	if err != nil {
-		return nil, err
+	var channels []channel.Channel
+	var err error
+
+	filter := args.Filter
+	if filter != nil {
+		channels, err = channel.List(filter.Logged, filter.EventName, filter.LocationName)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		channels, err = channel.List(nil, nil, nil)
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	resolvers := make([]*types.ChannelResolver, len(channels))