optimize can vote checking

app/community/routes.py

@@ -225,7 +225,9 @@ def show_community(community: Community):
     if current_user.is_anonymous:
         posts = posts.filter(Post.from_bot == False, Post.nsfw == False, Post.nsfl == False, Post.deleted == False)
         content_filters = {}
+        user = None
     else:
+        user = current_user
         if current_user.ignore_bots == 1:
             posts = posts.filter(Post.from_bot == False)
         if current_user.hide_nsfl == 1:
@@ -330,7 +332,7 @@ def show_community(community: Community):
                            etag=f"{community.id}{sort}{post_layout}_{hash(community.last_active)}", related_communities=related_communities,
                            next_url=next_url, prev_url=prev_url, low_bandwidth=low_bandwidth, un_moderated=un_moderated,
                            recently_upvoted=recently_upvoted, recently_downvoted=recently_downvoted,
-                           canonical=community.profile_id(),
+                           canonical=community.profile_id(), can_upvote_here=can_upvote(user, community), can_downvote_here=can_downvote(user, community, g.site),
                            rss_feed=f"https://{current_app.config['SERVER_NAME']}/community/{community.link()}/feed", rss_feed_name=f"{community.title} on {g.site.name}",
                            content_filters=content_filters, moderating_communities=moderating_communities(current_user.get_id()),
                            joined_communities=joined_communities(current_user.get_id()),

app/post/routes.py

@@ -32,7 +32,7 @@ from app.utils import get_setting, render_template, allowlist_html, markdown_to_
     blocked_instances, blocked_domains, community_moderators, blocked_phrases, show_ban_message, recently_upvoted_posts, \
     recently_downvoted_posts, recently_upvoted_post_replies, recently_downvoted_post_replies, reply_is_stupid, \
     languages_for_form, menu_topics, add_to_modlog, blocked_communities, piefed_markdown_to_lemmy_markdown, \
-    permission_required, blocked_users, get_request, is_local_image_url, is_video_url
+    permission_required, blocked_users, get_request, is_local_image_url, is_video_url, can_upvote, can_downvote
 from app.shared.reply import make_reply, edit_reply
 
 
@@ -161,9 +161,13 @@ def show_post(post_id: int):
 
     # for logged in users who have the 'hide read posts' function enabled
     # mark this post as read
-    if current_user.is_authenticated and current_user.hide_read_posts:
-        current_user.mark_post_as_read(post)
-        db.session.commit()
+    if current_user.is_authenticated:
+        user = current_user
+        if current_user.hide_read_posts:
+            current_user.mark_post_as_read(post)
+            db.session.commit()
+    else:
+        user = None
 
     response = render_template('post/post.html', title=post.title, post=post, is_moderator=is_moderator, is_owner=community.is_owner(),
                            community=post.community,
@@ -177,6 +181,8 @@ def show_post(post_id: int):
                            recently_upvoted_replies=recently_upvoted_replies, recently_downvoted_replies=recently_downvoted_replies,
                            reply_collapse_threshold=reply_collapse_threshold,
                            etag=f"{post.id}{sort}_{hash(post.last_active)}", markdown_editor=current_user.is_authenticated and current_user.markdown_editor,
+                           can_upvote_here=can_upvote(user, community),
+                           can_downvote_here=can_downvote(user, community, g.site),
                            low_bandwidth=request.cookies.get('low_bandwidth', '0') == '1',
                            moderating_communities=moderating_communities(current_user.get_id()),
                            joined_communities=joined_communities(current_user.get_id()),

app/templates/post/_comment_voting_buttons.html

@@ -1,6 +1,6 @@
 {% if current_user.is_authenticated and current_user.verified %}
         {% if disable_voting %} {% endif %}
-        {% if can_upvote(current_user, community) and not disable_voting %}
+        {% if (can_upvote_here or can_upvote(current_user, community)) and not disable_voting %}
                 <div class="upvote_button {{ 'voted_up' if in_sorted_list(recently_upvoted_replies, comment.id) }}" role="button" aria-label="{{ _('UpVote button.') }}" aria-live="assertive"
                  hx-post="/comment/{{ comment.id }}/upvote" hx-trigger="click throttle:1s" hx-target="closest .voting_buttons_new" tabindex="0">
                         <span class="fe fe-arrow-up"></span>
@@ -8,7 +8,7 @@
                 </div>
         {% endif %}
         <span title="{{ comment.up_votes }}, {{ comment.down_votes }}" aria-live="assertive" aria-label="{{ _('Score: ') }}{{ comment.up_votes - comment.down_votes }}.">{{ comment.up_votes - comment.down_votes }}</span>
-        {% if can_downvote(current_user, community) and not disable_voting %}
+        {% if (can_downvote_here or can_downvote(current_user, community)) and not disable_voting %}
                 <div class="downvote_button {{ 'voted_down' if in_sorted_list(recently_downvoted_replies, comment.id) }}" role="button" aria-label="{{ _('DownVote button.') }}" aria-live="assertive"
                  hx-post="/comment/{{ comment.id }}/downvote" hx-trigger="click throttle:1s" hx-target="closest .voting_buttons_new" tabindex="0">
                         <span class="fe fe-arrow-down"></span>

app/templates/post/_post_voting_buttons.html

@@ -1,5 +1,5 @@
 {% if current_user.is_authenticated and current_user.verified -%}
-        {% if can_upvote(current_user, post.community) and not disable_voting -%}
+        {% if (can_upvote_here or can_upvote(current_user, post.community)) and not disable_voting -%}
                 <div class="upvote_button {{ 'voted_up' if in_sorted_list(recently_upvoted, post.id) }}" role="button" aria-label="{{ _('UpVote button, %(count)d upvotes so far.', count=post.up_votes) }}" aria-live="assertive"
                  hx-post="/post/{{ post.id }}/upvote" hx-trigger="click throttle:1s" hx-target="closest .voting_buttons_new" tabindex="0">
                         <span class="fe fe-arrow-up"></span>
@@ -7,7 +7,7 @@
                 </div>
         {% endif -%}
         <span title="{{ post.up_votes }}, {{ post.down_votes }}" aria-live="assertive" aria-label="{{ _('Score: ') }}{{ post.up_votes - post.down_votes }}.">{{ shorten_number(post.up_votes - post.down_votes) }}</span>
-        {%- if can_downvote(current_user, post.community) and not disable_voting -%}
+        {%- if (can_downvote_here or can_downvote(current_user, post.community)) and not disable_voting -%}
                 <div class="downvote_button {{ 'voted_down' if in_sorted_list(recently_downvoted, post.id) }}" role="button" aria-label="{{ _('DownVote button, %(count)d downvotes so far.', count=post.down_votes) }}" aria-live="assertive"
                  hx-post="/post/{{ post.id }}/downvote" hx-trigger="click throttle:1s" hx-target="closest .voting_buttons_new" tabindex="0">
                         <span class="fe fe-arrow-down"></span>