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deletePage.go
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/
deletePage.go
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package handlers
import (
"context"
"encoding/json"
"net/http"
"strconv"
"github.com/go-chi/chi"
"github.com/go-chi/render"
restModel "github.com/saromanov/knowledge/internal/models/rest"
storageModel "github.com/saromanov/knowledge/internal/models/storage"
"github.com/saromanov/knowledge/internal/rest/response"
"github.com/saromanov/knowledge/internal/storage"
"github.com/sirupsen/logrus"
)
type DeletePageHandler struct {
store storage.Storage
}
// NewDeletePageHandler provides init
func NewDeletePageHandler(st storage.Storage) *DeletePageHandler {
return &DeletePageHandler{
store: st,
}
}
// Handle defines get request for the page
func (h DeletePageHandler) Handle(w http.ResponseWriter, r *http.Request) {
var page *storageModel.Page
pageValue := r.Context().Value("page")
if pageValue != nil {
page = pageValue.(*storageModel.Page)
}
out, err := json.Marshal(page)
if err != nil {
logrus.WithError(err).Error("unable to marshal response")
response.WriteError(w, r, http.StatusInternalServerError, restModel.Error{
Message: "unable to marshal response",
})
return
}
w.WriteHeader(http.StatusCreated)
render.JSON(w, r, restModel.Response{
Data: (json.RawMessage)(out),
})
}
// DeletePageCtx getting middleware page from db
func (h DeletePageHandler) DeletePageCtx(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var (
result *storageModel.Page
err error
)
ctx := r.Context()
if id := chi.URLParam(r, "pageID"); id != "" {
idParsed, err := strconv.ParseInt(id, 10, 32)
if err != nil {
render.Render(w, r, errPageNotFound)
return
}
err = h.store.DeletePage(ctx, idParsed)
} else {
render.Render(w, r, errPageNotFound)
return
}
if err != nil {
render.Render(w, r, errPageNotFound)
return
}
ctxRes := context.WithValue(ctx, "page", result)
next.ServeHTTP(w, r.WithContext(ctxRes))
})
}