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71391cd40d
When chat is enabled, there's a scheduled job that runs every 5 minutes to check whether we need to send a "chat summary" email to users with unread chat messages or mentions. On Discourse with a large number of users, the query used wasn't optimal and sometimes taking minutes. Which isn't good when the query is called every 5 minutes 😬 This PR reworks the query in `Chat::Mailer.send_unread_mentions_summary`. Instead of starting from the `users` table, it starts from the `user_chat_channel_memberships` table which is the main piece tying everything together. The new query is mostly similar to the previous one, with some bug fixes (like ensuring the user has `allow_private_messages` enabled for direct messages) and is also slightly simpler since it doesn't keep track of the `memberships_with_unread_messages` anymore. That part has been moved to the `user_notifications.chat_summary` email method. The `UserEmailExtension` has been deleted since that was using to N+1 update the `user_chat_channel_memberships.last_unread_mention_when_emailed_it`(quite a mouthful 😛) but that's now done directly in the `user_notifications.chat_summary` email method. The "plat de résistance" of that PR - the `user_notifications.chat_summary` method has been re-worked for improved performances 🚀 Instead of doing everything in one query, it does 4 tiny ones. - One to retrieve the list of unread mentions (@something) in "category" channels - One to retrieve the list of unread messages in "direct message" channels (aka. 1-1 and group discussions) - One to load all the chat messages for each "category" channels from the last unread mention - One to load all the chat messages for each "direct message" channels from the last unread message All the specs for both `Chat::Mailer` and `UserNotification.chat_summary` have been rewriten for easier comprehension and faster execution (mostly by not using chat services which makes the specs go 10x slower...) Internal ref - t/129848
93 lines
4.3 KiB
Plaintext
93 lines
4.3 KiB
Plaintext
<div class="summary-email">
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<table class="chat-summary-header text-header with-dir" style="background-color:#<%= @header_bgcolor -%>;width:100%;min-width:100%;">
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<tr>
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<td align="center" style="text-align: center;padding: 20px 0; font-family:Arial,sans-serif;">
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<a href="<%= Discourse.base_url %>" style="color:#<%= @header_color -%>;font-size:22px;text-decoration:none;">
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<%- if logo_url.blank? %>
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<%= SiteSetting.title %>
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<%- else %>
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<img src="<%= logo_url %>" height="40" style="clear:both;display:block;height:40px;margin:auto;max-width:100%;outline:0;text-decoration:none;" alt="<%= SiteSetting.title %>">
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<%- end %>
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</a>
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</td>
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</tr>
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<tr>
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<td align="center" style="font-weight:bold;font-size:22px;color:#<%= @header_color -%>">
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<%= I18n.t("user_notifications.chat_summary.description", count: @count) %>
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</td>
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</tr>
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</table>
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<%- [@grouped_channels, @grouped_dms].each do |grouped_messages| %>
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<%- grouped_messages.each do |channel, messages| %>
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<%- other_messages_count = messages.size - 2 %>
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<table class="chat-summary-content" style="padding:1em;margin-top:20px;width:100%;min-width:100%;background-color:#f7f7f7;">
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<tbody>
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<tr>
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<td colspan="100%">
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<h5 style="margin:0.5em 0 0.5em 0;font-size:0.9em;">
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<%- if SiteSetting.private_email %>
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<%= I18n.t("system_messages.private_channel_title", id: channel.id) %>
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<%- else %>
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<%= channel.title(@user) %>
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<%- end %>
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</h5>
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</td>
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</tr>
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<%- unless SiteSetting.private_email %>
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<%- messages.take(2).each do |chat_message| %>
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<%- sender = chat_message.user %>
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<tr class="message-row">
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<td style="white-space:nowrap;vertical-align:top;padding:<%= rtl? ? '1em 2em 0 0' : '1em 0 0 2em' %>">
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<img src="<%= sender.small_avatar_url -%>" style="height:20px;width:20px;margin:<%= rtl? ? '0 0 5px 0' : '0 5px 0 0' %>;border-radius:50%;clear:both;display:inline-block;outline:0;text-decoration:none;vertical-align:top;" alt="<%= sender.display_name -%>">
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<span style="display:inline-block;color:#0a0a0a;vertical-align:top;font-weight:bold;">
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<%= sender.display_name -%>
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</span>
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<span style="display:inline-block;color:#0a0a0a;font-size:0.8em;">
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<%= I18n.l(@user_tz.to_local(chat_message.created_at), format: :long) -%>
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</span>
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</td>
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</tr>
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<tr>
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<td style="width:99%;margin:0;padding:<%= rtl? ? '0 2em 0 0' : '0 0 0 2em' %>;vertical-align:top;">
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<%= email_excerpt(chat_message.cooked_for_excerpt) %>
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</td>
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</tr>
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<%- end %>
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<%- end %>
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<tr>
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<td colspan="100%" style="padding:<%= rtl? ? '2em 2em 0 0' : '2em 0 0 2em' %>">
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<a class="more-messages-link" href="<%= messages.first.full_url %>">
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<%- if SiteSetting.private_email || other_messages_count <= 0 %>
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<%= I18n.t("user_notifications.chat_summary.view_messages", count: messages.size) %>
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<%- else %>
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<%= I18n.t("user_notifications.chat_summary.view_more", count: other_messages_count) %>
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<%- end %>
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</a>
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</td>
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</tr>
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</tbody>
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</table>
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<%- end %>
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<%- end %>
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</div>
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<table class='summary-footer with-dir' style="margin-top:2em;width:100%">
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<tr>
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<td align="center">
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<%- if @unsubscribe_link %>
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<%= raw(t 'user_notifications.chat_summary.unsubscribe',
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site_link: html_site_link,
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email_preferences_link: link_to(t('user_notifications.chat_summary.your_chat_settings'), @preferences_path),
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unsubscribe_link: link_to(t('user_notifications.digest.click_here'), @unsubscribe_link)) %>
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<%- else %>
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<%= raw(t 'user_notifications.chat_summary.unsubscribe_no_link',
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site_link: html_site_link,
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email_preferences_link: link_to(t('user_notifications.chat_summary.your_chat_settings'), @preferences_path)) %>
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<%- end %>
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</td>
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</tr>
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</table>
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