add playlist deletion from web ui

server/assets/pages/home.tmpl

@@ -160,11 +160,13 @@
             <span class="text-light">no playlists yet</span>
         {{ end }}
         <table id="recent-playlists">
-        {{ range $playlist := .Playlists }}
+        {{ range $i, $playlist := .Playlists }}
             <tr>
+            <form id="recent-playlists-{{ $i }}" action="{{ printf "/admin/delete_playlist_do?id=%d" $playlist.ID | path }}" method="post"></form>
             <td class="text-right">{{ $playlist.Name }}</td>
             <td><span class="text-light">({{ $playlist.TrackCount }} tracks)</span></td>
             <td class="no-small"><span class="text-light" title="{{ $playlist.CreatedAt }}">{{ $playlist.CreatedAt | dateHuman }}</span></td>
+            <td><input form="recent-playlists-{{ $i }}" type="submit" value="delete"></td>
             </tr>
         {{ end }}
         </table>

server/ctrladmin/handlers_playlist.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"mime/multipart"
 	"net/http"
+	"strconv"
 	"strings"
 
 	"github.com/jinzhu/gorm"
@@ -117,3 +118,20 @@ func (c *Controller) ServeUploadPlaylistDo(r *http.Request) *Response {
 		flashW:   errors,
 	}
 }
+
+func (c *Controller) ServeDeletePlaylistDo(r *http.Request) *Response {
+	user := r.Context().Value(CtxUser).(*db.User)
+	id, err := strconv.Atoi(r.URL.Query().Get("id"))
+	if err != nil {
+		return &Response{
+			err:  "please provide a valid id",
+			code: 400,
+		}
+	}
+	c.DB.
+		Where("user_id=? AND id=?", user.ID, id).
+		Delete(db.Playlist{})
+	return &Response{
+		redirect: "/admin/home",
+	}
+}

server/server.go

@@ -121,6 +121,7 @@ func setupAdmin(r *mux.Router, ctrl *ctrladmin.Controller) {
 	routUser.Handle("/link_lastfm_do", ctrl.H(ctrl.ServeLinkLastFMDo))
 	routUser.Handle("/unlink_lastfm_do", ctrl.H(ctrl.ServeUnlinkLastFMDo))
 	routUser.Handle("/upload_playlist_do", ctrl.H(ctrl.ServeUploadPlaylistDo))
+	routUser.Handle("/delete_playlist_do", ctrl.H(ctrl.ServeDeletePlaylistDo))
 	routUser.Handle("/create_transcode_pref_do", ctrl.H(ctrl.ServeCreateTranscodePrefDo))
 	routUser.Handle("/delete_transcode_pref_do", ctrl.H(ctrl.ServeDeleteTranscodePrefDo))
 	// ** begin admin routes (if session is valid, and is admin)