Admin Panel/Settings/Accounts: Hide system messages of all users.

Thanks to bbyszio, r4nc0r and xet7 !

Related #3345

client/components/settings/settingBody.jade

@@ -122,6 +122,8 @@ template(name='email')
 
 template(name='accountSettings')
   ul#account-setting.setting-detail
+    li
+      button.js-all-hide-system-messages.primary {{_ 'hide-system-messages-of-all-users'}}
     li.accounts-form
       .title {{_ 'accounts-allowEmailChange'}}
       .form-group.flex
@@ -129,23 +131,18 @@ template(name='accountSettings')
         span {{_ 'yes'}}
         input.wekan-form-control#accounts-allowEmailChange(type="radio" name="allowEmailChange" value="false" checked="{{#unless allowEmailChange}}checked{{/unless}}")
         span {{_ 'no'}}
-    li
-    li.accounts-form
       .title {{_ 'accounts-allowUserNameChange'}}
       .form-group.flex
         input.wekan-form-control#accounts-allowUserNameChange(type="radio" name="allowUserNameChange" value="true" checked="{{#if allowUserNameChange}}checked{{/if}}")
         span {{_ 'yes'}}
         input.wekan-form-control#accounts-allowUserNameChange(type="radio" name="allowUserNameChange" value="false" checked="{{#unless allowUserNameChange}}checked{{/unless}}")
         span {{_ 'no'}}
-    li
-    li.accounts-form
       .title {{_ 'accounts-allowUserDelete'}}
       .form-group.flex
         input.wekan-form-control#accounts-allowUserDelete(type="radio" name="allowUserDelete" value="true" checked="{{#if allowUserDelete}}checked{{/if}}")
         span {{_ 'yes'}}
         input.wekan-form-control#accounts-allowUserDelete(type="radio" name="allowUserDelete" value="false" checked="{{#unless allowUserDelete}}checked{{/unless}}")
         span {{_ 'no'}}
-    li
       button.js-accounts-save.primary {{_ 'save'}}
 
 template(name='announcementSettings')

client/components/settings/settingBody.js

@@ -274,7 +274,6 @@ BlazeComponent.extendComponent({
       $set: { booleanValue: allowUserDelete },
     });
   },
-
   allowEmailChange() {
     return AccountSettings.findOne('accounts-allowEmailChange').booleanValue;
   },
@@ -284,12 +283,31 @@ BlazeComponent.extendComponent({
   allowUserDelete() {
     return AccountSettings.findOne('accounts-allowUserDelete').booleanValue;
   },
+  allHideSystemMessages() {
+    Meteor.call('setAllUsersHideSystemMessages', (err, ret) => {
+      if (!err && ret) {
+        if (ret === true) {
+          const message = `${TAPi18n.__(
+            'now-system-messages-of-all-users-are-hidden',
+          )}`;
+          alert(message);
+        }
+      } else {
+        const reason = err.reason || '';
+        const message = `${TAPi18n.__(err.error)}\n${reason}`;
+        alert(message);
+      }
+    });
+  },
 
   events() {
     return [
       {
         'click button.js-accounts-save': this.saveAccountsChange,
       },
+      {
+        'click button.js-all-hide-system-messages': this.allHideSystemMessages,
+      },
     ];
   },
 }).register('accountSettings');

i18n/en.i18n.json

@@ -982,5 +982,7 @@
   "title-alphabetically": "Title (Alphabetically)",
   "created-at-newest-first": "Created At (Newest First)",
   "created-at-oldest-first": "Created At (Oldest First)",
-  "links-heading": "Links"
+  "links-heading": "Links",
+  "hide-system-messages-of-all-users": "Hide system messages of all users",
+  "now-system-messages-of-all-users-are-hidden": "Now system messages of all users are hidden"
 }

models/users.js

@@ -797,6 +797,25 @@ Meteor.methods({
 
 if (Meteor.isServer) {
   Meteor.methods({
+    setAllUsersHideSystemMessages() {
+      if (Meteor.user() && Meteor.user().isAdmin) {
+        // If setting is missing, add it
+        Users.update(
+          { 'profile.hiddenSystemMessages': { $exists: false } },
+          { $set: { 'profile.hiddenSystemMessages': true } },
+          { multi: true },
+        );
+        // If setting is false, set it to true
+        Users.update(
+          { 'profile.hiddenSystemMessages': false },
+          { $set: { 'profile.hiddenSystemMessages': true } },
+          { multi: true },
+        );
+        return true;
+      } else {
+        return false;
+      }
+    },
     setCreateUser(
       fullname,
       username,