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karteikasten_handler.go
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/
karteikasten_handler.go
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package http
/****** @TODO - ADD USEFUL ERROR HANDLING *******/
import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"github.com/gorilla/mux"
"github.com/Elbroto1993/web-ss19/app/controller/karteikasten"
"github.com/Elbroto1993/web-ss19/app/model"
validator "gopkg.in/go-playground/validator.v9"
"github.com/Elbroto1993/web-ss19/app/controller/session"
)
// ResponseError represent the reseponse error struct
type ResponseError struct {
Message string `json:"message"`
}
// HTTPKarteikastenHandler represent the httphandler for karteikasten
type HTTPKarteikastenHandler struct {
KarteikastenUsecase karteikasten.Usecase
}
func NewKarteikastenHttpHandler(r *mux.Router, us karteikasten.Usecase) {
handler := &HTTPKarteikastenHandler{
KarteikastenUsecase: us,
}
//r.HandleFunc("/", handler.GetByID).Methods("GET")
r.HandleFunc("/user", handler.GetByUserID).Methods("GET")
r.HandleFunc("/createdbyuser", handler.GetByCreatedUserID).Methods("GET")
r.HandleFunc("/", handler.FetchKaesten).Methods("GET")
r.HandleFunc("/kasten/{id}", handler.GetByID).Methods("GET")
r.HandleFunc("/", handler.Store).Methods("POST")
r.HandleFunc("/storeExistKasten", handler.StoreExistKasten).Methods("POST")
r.HandleFunc("/update", handler.Update).Methods("POST")
r.HandleFunc("/{id}", handler.Delete).Methods("DELETE")
}
// FetchKaesten get all Karteikaesten from all users
func (u *HTTPKarteikastenHandler) FetchKaesten(w http.ResponseWriter, r *http.Request) {
listKaesten, err := u.KarteikastenUsecase.Fetch()
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(listKaesten)
}
}
// GetByID one kasten by id
func (u *HTTPKarteikastenHandler) GetByID(w http.ResponseWriter, r *http.Request) {
params := mux.Vars(r) // Get all params
id, _ := strconv.ParseInt(params["id"], 10, 64)
kasten, err := u.KarteikastenUsecase.GetByID(id)
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(kasten)
}
}
// GetByUserID all karteikaesten from logged in user by userid
func (u *HTTPKarteikastenHandler) GetByUserID(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
userid := session.GetCookieUserID(w, r)
listKaesten, err := u.KarteikastenUsecase.GetByUserID(userid)
if err != nil {
} else {
json.NewEncoder(w).Encode(listKaesten)
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
// GetByCreatedUserID all karteikaesten from logged in user by created_by_userid
func (u *HTTPKarteikastenHandler) GetByCreatedUserID(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
userid := session.GetCookieUserID(w, r)
listKaesten, err := u.KarteikastenUsecase.GetByCreatedUserID(userid)
if err != nil {
} else {
json.NewEncoder(w).Encode(listKaesten)
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
// Store new karteikasten for logged in user
func (u *HTTPKarteikastenHandler) Store(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
// Get userid from cookie for foreign key from kasten
userid := session.GetCookieUserID(w, r)
var kasten model.Karteikasten
kasten.UserID = userid
kasten.CreatedByUserID = userid
err := json.NewDecoder(r.Body).Decode(&kasten)
if err != nil {
fmt.Println(err)
}
// If struct isn't valid don't store it
if ok, err := isRequestValid(&kasten); !ok {
fmt.Println(err)
} else {
err = u.KarteikastenUsecase.Store(&kasten)
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(kasten)
}
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
// StoreExistKasten new karteikasten for logged in user from another user
func (u *HTTPKarteikastenHandler) StoreExistKasten(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
// Get userid from cookie for foreign key from kasten
userid := session.GetCookieUserID(w, r)
var kasten model.Karteikasten
kasten.UserID = userid
err := json.NewDecoder(r.Body).Decode(&kasten)
if err != nil {
fmt.Println(err)
}
// If struct isn't valid don't store it
if ok, err := isRequestValid(&kasten); !ok {
fmt.Println(err)
} else {
err = u.KarteikastenUsecase.Store(&kasten)
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(kasten)
}
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
// Delete Karteikasten by id for logged in user
func (u *HTTPKarteikastenHandler) Delete(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
params := mux.Vars(r) // Get all params
id, err := strconv.Atoi(params["id"])
if err != nil {
fmt.Println(err)
} else {
err = u.KarteikastenUsecase.Delete(int64(id))
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(http.StatusNoContent)
}
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
// Update karteikasten for logged in user, kasten_id to update is expected in struct
func (u *HTTPKarteikastenHandler) Update(w http.ResponseWriter, r *http.Request) {
valid := session.GetCookieAuthenticated(w, r)
if valid {
// Get userid from cookie for foreign key from kasten
userid := session.GetCookieUserID(w, r)
var kasten model.Karteikasten
kasten.UserID = userid
err := json.NewDecoder(r.Body).Decode(&kasten)
if err != nil {
fmt.Println(err)
}
// If struct isn't valid don't store it
if ok, err := isRequestValid(&kasten); !ok {
fmt.Println(err)
} else {
err = u.KarteikastenUsecase.Update(&kasten)
if err != nil {
fmt.Println(err)
} else {
json.NewEncoder(w).Encode(kasten)
}
}
} else {
fmt.Println("Nicht eingeloggt")
}
}
func isRequestValid(m *model.Karteikasten) (bool, error) {
validate := validator.New()
err := validate.Struct(m)
if err != nil {
return false, err
}
return true, nil
}