package lists import ( "database/sql" "errors" "fagott.pw/charakterin" "fagott.pw/grilist/frontend" "fagott.pw/grilist/grilist" "fagott.pw/grilist/modules/grils" "fmt" "github.com/julienschmidt/httprouter" "github.com/lib/pq" "log" "net/http" "strconv" ) // Module und so. type Module struct { g *grilist.Grilist grils *grils.GrilsModule } // List ist eine Liste an DINGEN. type List struct { ID int Name string Description string Owner *charakterin.User ForkOf sql.NullInt64 UpdatedAt pq.NullTime Grils []*ListGril } // ListGril ist ein geranktes Gril type ListGril struct { Gril *grils.Gril Order int } // Name gibt den Namen des Moduls zurück func (m *Module) Name() string { return "Lists" } // Init initialisiert das Modul func (m *Module) Init(g *grilist.Grilist) { m.g = g gm, ok := g.Modules["Grils"] if !ok { log.Fatal("lists: grils module not found") } grilsModule, ok := gm.(*grils.GrilsModule) if !ok { log.Fatal("lists: error with grils module") } m.grils = grilsModule m.g.Router.GET("/list/:id", m.viewList) } func (m *Module) getListGrils(list *List) error { rows, err := m.g.DB.Query(`SELECT gril_id, "order" FROM grilist.lists_grils WHERE list_id = $1`, list.ID) if err != nil { return err } defer rows.Close() for rows.Next() { var grilID int lg := &ListGril{} if err := rows.Scan(&grilID, &lg.Order); err != nil { log.Println("error scanning row in getListGrils:", err) continue } gril, err := m.grils.FromID(grilID) if err != nil { log.Println("error getting listGril:", err) continue } lg.Gril = gril list.Grils = append(list.Grils, lg) } return nil } func (m *Module) getLists(whereClause string, params ...interface{}) ([]*List, error) { var lists []*List rows, err := m.g.DB.Query(fmt.Sprintf(`SELECT id, name, description, fork_of, updated_at, user_id FROM grilist.lists WHERE %s`, whereClause), params...) if err != nil { return nil, err } defer rows.Close() for rows.Next() { list := &List{} var ownerID int if err := rows.Scan(&list.ID, &list.Name, &list.Description, &list.ForkOf, &list.UpdatedAt, &ownerID); err != nil { log.Println("error scanning row in getLists:", err) continue } if err := m.getListGrils(list); err != nil { log.Println(err) continue } // Owner kriegn owner, err := m.g.Charakterin.GetUserByID(ownerID) if err != nil { log.Println("error retreiving owner of list", err) continue } list.Owner = owner lists = append(lists, list) } return lists, nil } // GetUserLists gibt die Listen eines Benutzers zurück. func (m *Module) GetUserLists(u *charakterin.User) []*List { lists, err := m.getLists(`user_id = $1`, u.ID) if err != nil { log.Println(err) } return lists } // FromID sucht nach der Liste mit der gegebenen ID und gibt sie, falls sie existiert, zurück. func (m *Module) FromID(id int) (*List, error) { lists, err := m.getLists(`id = $1`, id) if err != nil { return nil, err } if len(lists) == 0 { return nil, errors.New("no list found") } return lists[0], nil } func listsToCards(lists []*List) []frontend.Card { var cards []frontend.Card for _, list := range lists { s := "s" if len(list.Grils) == 1 { s = "" } cards = append(cards, frontend.Card{ Title: list.Name, Description: list.Description, Size: "medium", Actions: []frontend.Action{ frontend.Action{ Name: "anguckieren", Link: fmt.Sprintf("/list/%d", list.ID), }, frontend.Action{ Name: fmt.Sprintf(`%d gril%s`, len(list.Grils), s), Link: "#", Disabled: true, }, }, }) } return cards } // ProvideDashboardData gibt Daten für das Dashboard bezogen auf den Benutzer zurück func (m *Module) ProvideDashboardData(user *charakterin.User) []grilist.DashboardCategory { var categories []grilist.DashboardCategory // Neue Listen lists, err := m.getLists(`1=1 ORDER BY id DESC LIMIT 5`) if err != nil { log.Println(err) return categories } categories = append(categories, grilist.DashboardCategory{ Title: "Neueste Listen", Cards: listsToCards(lists), }) if user == nil { return categories } // Listen des Benutzers lists, err = m.getLists(`user_id = $1`, user.ID) if err != nil { log.Println(err) return categories } categories = append(categories, grilist.DashboardCategory{ Title: "Meine Listen", Cards: listsToCards(lists), }) return categories } func (m *Module) viewList(w http.ResponseWriter, r *http.Request, p httprouter.Params) { user, _ := m.g.Charakterin.GetUserFromRequest(r) sid := p.ByName("id") id, err := strconv.Atoi(sid) if err != nil { http.Redirect(w, r, "/", 302) return } list, err := m.FromID(id) if err != nil { http.Redirect(w, r, "/", 302) return } data := m.g.Renderer.DefaultData() data["user"] = user data["list"] = list m.g.Renderer.RenderPage("list", w, data) } // New erstellt eine neue Instanz des Modules func New() *Module { return &Module{} }