FEATURE: Allow admins to lock users from TL3 promotion/demotion

Also, update the display logic for the leader promotion screen to
account for the demotion grace period.

app/assets/javascripts/admin/models/admin_user.js

@@ -164,6 +164,24 @@ Discourse.AdminUser = Discourse.User.extend({
     this.set('trustLevel.id', this.get('originalTrustLevel'));
   },
 
+  lockTrustLevel: function(locked) {
+    Discourse.ajax("/admin/users/" + this.id + "/trust_level_lock", {
+      type: 'PUT',
+      data: { locked: !!locked }
+    }).then(function() {
+      // succeeded
+      window.location.reload();
+    }, function(e) {
+      // failure
+      var error;
+      if (e.responseJSON && e.responseJSON.errors) {
+        error = e.responseJSON.errors[0];
+      }
+      error = error || I18n.t('admin.user.trust_level_change_failed', { error: "http: " + e.status + " - " + e.body });
+      bootbox.alert(error);
+    });
+  },
+
   isSuspended: Em.computed.equal('suspended', true),
   canSuspend: Em.computed.not('staff'),
 

app/assets/javascripts/admin/models/leader_requirements.js

@@ -18,7 +18,8 @@ Discourse.LeaderRequirements = Discourse.Model.extend({
       flagged_posts: this.get('num_flagged_posts') <= this.get('max_flagged_posts'),
       flagged_by_users: this.get('num_flagged_by_users') <= this.get('max_flagged_by_users'),
       likes_given: this.get('num_likes_given') >= this.get('min_likes_given'),
-      likes_received: this.get('num_likes_received') >= this.get('min_likes_received')
+      likes_received: this.get('num_likes_received') >= this.get('min_likes_received'),
+      level_locked: this.get('trust_level_locked')
     };
   }.property('days_visited', 'min_days_visited',
              'num_topics_replied_to', 'min_topics_replied_to',
@@ -29,5 +30,6 @@ Discourse.LeaderRequirements = Discourse.Model.extend({
              'posts_read_all_time', 'min_posts_read_all_time',
              'num_flagged_by_users', 'max_flagged_by_users',
              'num_likes_given', 'min_likes_given',
-             'num_likes_received', 'min_likes_received')
+             'num_likes_received', 'min_likes_received',
+             'trust_level_locked')
 });

app/assets/javascripts/admin/routes/admin_user_leader_requirements_route.js

@@ -10,5 +10,15 @@
 Discourse.AdminUserLeaderRequirementsRoute = Discourse.Route.extend({
   model: function() {
     return this.modelFor('adminUser');
+  },
+
+  actions: {
+    lock_trust_level: function() {
+      this.modelFor('adminUser').lockTrustLevel(true);
+    },
+
+    unlock_trust_level: function() {
+      this.modelFor('adminUser').lockTrustLevel(false);
+    }
   }
 });

app/assets/javascripts/admin/templates/user_leader_requirements.hbs

@@ -85,21 +85,50 @@
           <td>{{num_likes_received}}</td>
           <td>{{min_likes_received}}</td>
         </tr>
+        <tr>
+          <th>{{i18n admin.user.tl3_requirements.trust_level_locked}}</th>
+          <td><i {{bind-attr class=":fa met.level_locked:fa-lock:fa-unlock"}}></i></td>
+          {{#if trust_level_locked}}
+            <td>{{i18n yes_value}}</td>
+            <td><a class="btn" {{action unlock_trust_level}}>{{i18n admin.user.tl3_requirements.unlock_tl}}</a></td>
+          {{else}}
+            <td>{{i18n no_value}}</td>
+            <td><a class="btn" {{action lock_trust_level}}>{{i18n admin.user.tl3_requirements.lock_tl}}</a></td>
+          {{/if}}
+        </tr>
       </tbody>
     </table>
   {{/with}}
 
   <br/>
   <p>
-    {{#if leaderRequirements.requirements_met}}
+    {{#if isLeader}}
+      {{#if leaderRequirements.requirements_lost}}
+        {{! tl implicitly not locked }}
+        {{#if leaderRequirements.on_grace_period}}
+          <i class="fa fa-times"></i> {{i18n admin.user.tl3_requirements.on_grace_period}}
+        {{else}} {{! not on grace period }}
+          <i class="fa fa-times"></i> {{i18n admin.user.tl3_requirements.does_not_qualify}}
+                                      {{i18n admin.user.tl3_requirements.will_be_demoted}}
+        {{/if}}
+      {{else}} {{! requirements not lost - remains leader }}
+        {{#if leaderRequirements.trust_level_locked}}
+          <i class="fa fa-lock"></i> {{i18n admin.user.tl3_requirements.locked_will_not_be_demoted}}
+        {{else}} {{! tl not locked }}
+          <i class="fa fa-check"></i> {{i18n admin.user.tl3_requirements.qualifies}}
+        {{/if}}
+      {{/if}}
+    {{else}} {{! is not leader }}
+      {{#if leaderRequirements.requirements_met}}
+        {{! met & not leader - will be promoted}}
         <i class="fa fa-check"></i> {{i18n admin.user.tl3_requirements.qualifies}}
-      {{#unless isLeader}}
                                     {{i18n admin.user.tl3_requirements.will_be_promoted}}
-      {{/unless}}
+      {{else}} {{! requirements not met - remains regular }}
+        {{#if leaderRequirements.trust_level_locked}}
+          <i class="fa fa-lock"></i> {{i18n admin.user.tl3_requirements.locked_will_not_be_promoted}}
         {{else}}
           <i class="fa fa-times"></i> {{i18n admin.user.tl3_requirements.does_not_qualify}}
-      {{#if suspended}}
-        {{i18n user.suspended_notice date="suspendedTillDate"}}
+        {{/if}}
       {{/if}}
     {{/if}}
   </p>

app/controllers/admin/users_controller.rb

@@ -17,6 +17,7 @@ class Admin::UsersController < Admin::AdminController
                                     :block,
                                     :unblock,
                                     :trust_level,
+                                    :trust_level_lock,
                                     :add_group,
                                     :remove_group,
                                     :primary_group,
@@ -134,6 +135,19 @@ class Admin::UsersController < Admin::AdminController
     render_json_error(e.message)
   end
 
+  def trust_level_lock
+    guardian.ensure_can_change_trust_level!(@user)
+
+    new_lock = params[:locked]
+    unless new_lock =~ /t|f|true|false/
+      return render_json_error I18n.t('errors.invalid_boolaen')
+    end
+
+    @user.trust_level_locked = !!(new_lock =~ /t|true/)
+    @user.save
+    render nothing: true
+  end
+
   def approve
     guardian.ensure_can_approve!(@user)
     @user.approve(current_user)

app/jobs/scheduled/leader_promotions.rb

@@ -8,11 +8,7 @@ module Jobs
       demoted_user_ids = []
       User.real.where(trust_level: TrustLevel[3]).find_each do |u|
         # Don't demote too soon after being promoted
-        next if UserHistory.for(u, :auto_trust_level_change)
-                           .where('created_at >= ?', SiteSetting.tl3_promotion_min_duration.to_i.days.ago)
-                           .where(previous_value: TrustLevel[2].to_s)
-                           .where(new_value: TrustLevel[3].to_s)
-                           .exists?
+        next if user.on_leader_grace_period?
 
         if Promotion.tl3_lost?(u)
           demoted_user_ids << u.id

app/models/trust_level3_requirements.rb

@@ -16,13 +16,15 @@ class TrustLevel3Requirements
                 :posts_read_all_time, :min_posts_read_all_time,
                 :num_flagged_posts, :max_flagged_posts,
                 :num_likes_given, :min_likes_given,
-                :num_likes_received, :min_likes_received
+                :num_likes_received, :min_likes_received,
+                :trust_level_locked, :on_grace_period
 
   def initialize(user)
     @user = user
   end
 
   def requirements_met?
+    return false if trust_level_locked
     !@user.suspended? &&
     days_visited >= min_days_visited &&
     num_topics_replied_to >= min_topics_replied_to &&
@@ -37,6 +39,7 @@ class TrustLevel3Requirements
   end
 
   def requirements_lost?
+    return false if trust_level_locked
     @user.suspended? ||
     days_visited < min_days_visited * LOW_WATER_MARK ||
     num_topics_replied_to < min_topics_replied_to * LOW_WATER_MARK ||
@@ -50,6 +53,14 @@ class TrustLevel3Requirements
     num_likes_received < min_likes_received * LOW_WATER_MARK
   end
 
+  def trust_level_locked
+    @user.trust_level_locked
+  end
+
+  def on_grace_period
+    @user.on_leader_grace_period?
+  end
+
   def days_visited
     @user.user_visits.where("visited_at > ? and posts_read > 0", TIME_PERIOD.days.ago).count
   end

app/models/user.rb

@@ -574,6 +574,14 @@ class User < ActiveRecord::Base
     @lq ||= TrustLevel3Requirements.new(self)
   end
 
+  def on_leader_grace_period?
+    UserHistory.for(self, :auto_trust_level_change)
+      .where('created_at >= ?', SiteSetting.tl3_promotion_min_duration.to_i.days.ago)
+      .where(previous_value: TrustLevel[2].to_s)
+      .where(new_value: TrustLevel[3].to_s)
+      .exists?
+  end
+
   def should_be_redirected_to_top
     redirected_to_top_reason.present?
   end

app/serializers/trust_level3_requirements_serializer.rb

@@ -1,6 +1,8 @@
 class TrustLevel3RequirementsSerializer < ApplicationSerializer
   attributes :time_period,
              :requirements_met,
+             :requirements_lost,
+             :trust_level_locked, :on_grace_period,
              :days_visited, :min_days_visited,
              :num_topics_replied_to, :min_topics_replied_to,
              :topics_viewed, :min_topics_viewed,
@@ -19,4 +21,8 @@ class TrustLevel3RequirementsSerializer < ApplicationSerializer
   def requirements_met
     object.requirements_met?
   end
+
+  def requirements_lost
+    object.requirements_lost?
+  end
 end

config/locales/client.en.yml

@@ -1975,9 +1975,16 @@ en:
           flagged_by_users: "Users Who Flagged"
           likes_given: "Likes Given"
           likes_received: "Likes Received"
+          trust_level_locked: "Trust Level Locked"
+          lock_tl: "Lock"
+          unlock_tl: "Unlock"
           qualifies: "Qualifies for trust level 3."
-          will_be_promoted: "Will be promoted within 24 hours."
           does_not_qualify: "Doesn't qualify for trust level 3."
+          will_be_promoted: "Will be promoted within 24 hours."
+          will_be_demoted: "Will be demoted within 24 hours."
+          on_grace_period: "Currently in promotion grace period, will not be demoted."
+          locked_will_not_be_promoted: "Trust level locked. Will never be promoted."
+          locked_will_not_be_demoted: "Trust level locked. Will never be demoted."
         sso:
           title: "Single Sign On"
           external_id: "External ID"

config/locales/server.en.yml

@@ -41,6 +41,7 @@ en:
   errors:
     messages:
       too_long_validation: "is limited to %{max} characters; you entered %{length}."
+      invalid_boolean: "Invalid boolean."
     embed:
       load_from_remote: "There was an error loading that post."
 

config/routes.rb

@@ -72,6 +72,7 @@ Discourse::Application.routes.draw do
       put "block"
       put "unblock"
       put "trust_level"
+      put "trust_level_lock"
       put "primary_group"
       post "groups" => "users#add_group", constraints: AdminConstraint.new
       delete "groups/:group_id" => "users#remove_group", constraints: AdminConstraint.new