edit status

web/handler/handler.go

@@ -73,6 +73,8 @@ func New(cfg *config.Config, sess *session.Session, data *storage.Storage) (http
 
 	router.HandleFunc("/statuses/new", h.showNewStatusView).Methods(http.MethodGet)
 	router.HandleFunc("/statuses/save", h.saveStatus).Methods(http.MethodPost)
+	router.HandleFunc("/statuses/{id}/edit", h.showEditStatusView).Methods(http.MethodGet)
+	router.HandleFunc("/statuses/{id}/update", h.updateStatus).Methods(http.MethodPost)
 
 	return router, nil
 }

web/handler/html.go

@@ -17,6 +17,21 @@ var TplMap = map[string]string{
     </div>
     <input type="submit" value="Submit">
 </form>
+{{ end }}`,
+	"edit_status": `{{ define "content" }}
+<h1>Edit status</h1>
+{{ if .form.Error }}
+<p>{{ .form.Error }}</p>
+{{ end }}
+{{ if .flash }}
+<p>{{ .flash }}</p>
+{{ end }}
+<form action="/statuses/{{ .status.Id }}/update" method="post">
+    <div class="field">
+        <input type="text" name="content" placeholder="What's new?" required autofocus value="{{ .status.Content }}"/>
+    </div>
+    <input type="submit" value="Submit">
+</form>
 {{ end }}`,
 	"index": `{{ define "content" }}
 <p>This is the index</p>

web/handler/html/edit_status.html

@@ -0,0 +1,15 @@
+{{ define "content" }}
+<h1>Edit status</h1>
+{{ if .form.Error }}
+<p>{{ .form.Error }}</p>
+{{ end }}
+{{ if .flash }}
+<p>{{ .flash }}</p>
+{{ end }}
+<form action="/statuses/{{ .status.Id }}/update" method="post">
+    <div class="field">
+        <input type="text" name="content" placeholder="What's new?" required autofocus value="{{ .status.Content }}"/>
+    </div>
+    <input type="submit" value="Submit">
+</form>
+{{ end }}

web/handler/status_edit.go

@@ -0,0 +1,52 @@
+package handler
+
+import (
+	"github.com/gorilla/mux"
+	"net/http"
+	"strconv"
+)
+
+func RouteInt64Param(r *http.Request, param string) int64 {
+	vars := mux.Vars(r)
+	value, err := strconv.ParseInt(vars[param], 10, 64)
+	if err != nil {
+		return 0
+	}
+
+	if value < 0 {
+		return 0
+	}
+
+	return value
+}
+
+func (h *Handler) showEditStatusView(w http.ResponseWriter, r *http.Request) {
+	user, err := h.getUser(r)
+	if err != nil {
+		unauthorized(w)
+		return
+	}
+	status, err := h.storage.StatusById(RouteInt64Param(r, "id"))
+	if err != nil {
+		serverError(w, err)
+		return
+	}
+	if user != status.User {
+		unauthorized(w)
+		return
+	}
+	session, err := h.sess.Store.Get(r, "ichi")
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	flash := ""
+	if flashes := session.Flashes(); len(flashes) > 0 {
+		flash = flashes[0].(string)
+	}
+	session.Save(r, w)
+	h.renderLayout(w, "edit_status", map[string]interface{}{
+		"status": status,
+		"flash":  flash,
+	}, user)
+}

web/handler/status_update.go

@@ -0,0 +1,46 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+	"status/web/handler/form"
+)
+
+func (h *Handler) updateStatus(w http.ResponseWriter, r *http.Request) {
+	user, err := h.getUser(r)
+	if err != nil {
+		unauthorized(w)
+		return
+	}
+	status, err := h.storage.StatusById(RouteInt64Param(r, "id"))
+	if err != nil {
+		serverError(w, err)
+		return
+	}
+
+	if user != status.User {
+		unauthorized(w)
+		return
+	}
+	f := form.NewStatusForm(r)
+	status.Content = f.Content
+	if err := status.Validate(); err != nil {
+		f.Error = err.Error()
+		h.renderLayout(w, "edit_post", map[string]interface{}{
+			"form": f,
+		}, "")
+		return
+	}
+	if err := h.storage.UpdateStatus(status); err != nil {
+		serverError(w, err)
+		return
+	}
+	session, err := h.sess.Store.Get(r, "ichi")
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	session.AddFlash("Status edited!")
+	err = session.Save(r, w)
+	http.Redirect(w, r, fmt.Sprintf("/statuses/%d/edit", status.Id), http.StatusFound)
+}