chore: refactor names and variables

pkg/modules/migration/trello/trello.go

@@ -120,25 +120,25 @@ func getTrelloBoards(client *trello.Client) (trelloData []*trello.Board, err err
 	return
 }
 
-func createOrganizationMap(trelloData []*trello.Board) map[string][]*trello.Board {
-	boardMap := make(map[string][]*trello.Board)
+func getTrelloOrganizationsWithBoards(boards []*trello.Board) (boardsByOrg map[string][]*trello.Board) {
 
-	for _, board := range trelloData {
+	boardsByOrg = make(map[string][]*trello.Board)
+
+	for _, board := range boards {
 		// Trello boards without an organization are considered personal boards
 		if board.IDOrganization == "" {
 			board.IDOrganization = "Personal"
 		}
 
-		boards, ok := boardMap[board.IDOrganization]
-		if ok {
-			boards = append(boards, board)
-		} else {
-			boards = []*trello.Board{board}
+		_, has := boardsByOrg[board.IDOrganization]
+		if !has {
+			boardsByOrg[board.IDOrganization] = []*trello.Board{}
 		}
-		boardMap[board.IDOrganization] = boards
+
+		boardsByOrg[board.IDOrganization] = append(boardsByOrg[board.IDOrganization], board)
 	}
 
-	return boardMap
+	return
 }
 
 func fillCardData(client *trello.Client, board *trello.Board) (err error) {
@@ -415,14 +415,14 @@ func (m *Migration) Migrate(u *user.User) (err error) {
 	client := trello.NewClient(config.MigrationTrelloKey.GetString(), m.Token)
 	client.Logger = log.GetLogger()
 
-	data, err := getTrelloBoards(client)
+	boards, err := getTrelloBoards(client)
 	if err != nil {
 		return
 	}
 
 	log.Debugf("[Trello Migration] Got all trello data for user %d", u.ID)
 
-	organizationMap := createOrganizationMap(data)
+	organizationMap := getTrelloOrganizationsWithBoards(boards)
 	for organizationID, boards := range organizationMap {
 		log.Debugf("[Trello Migration] Getting organization with id %s for user %d", organizationID, u.ID)
 		organization, err := client.GetOrganization(organizationID, trello.Defaults())

pkg/modules/migration/trello/trello_test.go

@@ -452,7 +452,7 @@ func TestConvertTrelloToVikunja(t *testing.T) {
 		},
 	}
 
-	organizationMap := createOrganizationMap(trelloData)
+	organizationMap := getTrelloOrganizationsWithBoards(trelloData)
 	for organizationID, boards := range organizationMap {
 		hierarchy, err := convertTrelloDataToVikunja(organizationID, boards, "")
 
@@ -467,7 +467,7 @@ func TestConvertTrelloToVikunja(t *testing.T) {
 func TestCreateOrganizationMap(t *testing.T) {
 	trelloData, _ := getTestBoard(t)
 
-	organizationMap := createOrganizationMap(trelloData)
+	organizationMap := getTrelloOrganizationsWithBoards(trelloData)
 	expectedMap := map[string][]*trello.Board{
 		"orgid": {
 			trelloData[0],