Can update post content

lib/helpers/posts_helper.dart

@@ -56,6 +56,19 @@ class PostsHelper {
     }
   }
 
+  /// Update a post content
+  Future<bool> updateContent(int id, String newContent) async {
+    return (await APIRequest(
+      uri: "posts/update_content",
+      needLogin: true,
+      args: {
+        "postID": id.toString(),
+        "new_content": newContent,
+      },
+    ).exec())
+        .isOK;
+  }
+
   /// Delete a post
   Future<bool> delete(int id) async {
     return (await APIRequest(

lib/models/post.dart

@@ -15,7 +15,7 @@ class Post implements LikeElement {
   final int userPageID;
   final int groupID;
   final int timeSent;
-  final String content;
+  String content;
   final PostVisibilityLevel visibilityLevel;
   final PostKind kind;
   final int fileSize;
@@ -70,6 +70,8 @@ class Post implements LikeElement {
 
   bool get hasComments => comments != null;
 
+  bool get canUpdate => access == UserAccessLevels.FULL;
+
   bool get canDelete =>
       access == UserAccessLevels.FULL ||
       access == UserAccessLevels.INTERMEDIATE;

lib/ui/tiles/post_tile.dart

@@ -31,7 +31,7 @@ const TextStyle _userNameStyle = TextStyle(
     fontSize: 16.0);
 
 /// Post actions
-enum _PostActions { DELETE }
+enum _PostActions { DELETE, UPDATE_CONTENT }
 
 class PostTile extends StatefulWidget {
   final Post post;
@@ -99,6 +99,13 @@ class _PostTileState extends State<PostTile> {
 
         PopupMenuButton<_PostActions>(
           itemBuilder: (c) => [
+                // Update post content
+                PopupMenuItem(
+                  child: Text(tr("Update content")),
+                  value: _PostActions.UPDATE_CONTENT,
+                  enabled: widget.post.canUpdate,
+                ),
+
                 // Delete post
                 PopupMenuItem(
                   child: Text(tr("Delete")),
@@ -422,12 +429,38 @@ class _PostTileState extends State<PostTile> {
   /// Method called each time the user has selected an option
   void _selectedPostMenuAction(_PostActions value) {
     switch (value) {
+      // Update post content
+      case _PostActions.UPDATE_CONTENT:
+        updateContent();
+        break;
+
+      // Delete post
       case _PostActions.DELETE:
         confirmDelete();
         break;
     }
   }
 
+  /// Update post content
+  Future<void> updateContent() async {
+    final newContent = await askUserString(
+      context: context,
+      title: tr("Update post content"),
+      message: tr("Please enter message content: "),
+      defaultValue: widget.post.content,
+      hint: tr("Post content"),
+    );
+
+    if (newContent == null) return;
+
+    if (!await _postsHelper.updateContent(widget.post.id, newContent)) {
+      showSimpleSnack(context, tr("Could not update post content!"));
+      return;
+    }
+
+    setState(() => widget.post.content = newContent);
+  }
+
   /// Perform the deletion of the post
   Future<void> confirmDelete() async {
     // Ask user confirmation