Added logic to remove user reason once user gets activated

client/methods/unsetUserReason.js

@@ -0,0 +1,6 @@
+Meteor.methods({
+	unsetUserReason(userId) {
+		Meteor.users.update(userId, { $unset: { 'reason' : 1 } });
+		return true;
+	}
+});

packages/rocketchat-lib/server/models/Users.js

@@ -314,16 +314,6 @@ class ModelUsers extends RocketChat.models._Base {
 		return this.update(_id, update);
 	}
 
-	setReason(_id, reason) {
-		const update = {
-			$set: {
-				reason
-			}
-		};
-
-		return this.update(_id, update);
-	}
-
 	setCustomFields(_id, fields) {
 		const values = {};
 		Object.keys(fields).reduce(key => {
@@ -504,6 +494,26 @@ class ModelUsers extends RocketChat.models._Base {
 		return this.update({ _id }, update);
 	}
 
+	setReason(_id, reason) {
+		const update = {
+			$set: {
+				reason
+			}
+		};
+
+		return this.update(_id, update);
+	}
+
+	unsetReason(_id) {
+		const update = {
+			$unset: {
+				'reason' : true,
+			}
+		};
+
+		return this.update(_id, update);
+	}
+
 // INSERT
 	create(data) {
 		const user = {

packages/rocketchat-ui-flextab/client/tabs/userInfo.js

@@ -184,7 +184,7 @@ Template.userInfo.helpers({
 
 	shouldDisplayReason() {
 		const user = Template.instance().user.get();
-		return RocketChat.settings.get('Accounts_ManuallyApproveNewUsers') && user.active === false;
+		return RocketChat.settings.get('Accounts_ManuallyApproveNewUsers') && user.active === false && user.reason;
 	}
 });
 
@@ -395,6 +395,9 @@ Template.userInfo.events({
 		if (user) {
 			return Meteor.call('setUserActiveStatus', user._id, true, function(error, result) {
 				if (result) {
+
+					Meteor.call('unsetUserReason', user._id);
+
 					toastr.success(t('User_has_been_activated'));
 				}
 				if (error) {

server/methods/unsetUserReason.js

@@ -0,0 +1,27 @@
+Meteor.methods({
+	unsetUserReason(userId) {
+		check(userId, String);
+
+		if (!Meteor.userId()) {
+			throw new Meteor.Error('error-invalid-user', 'Invalid user', {
+				method: 'unsetUserReason'
+			});
+		}
+
+		if (RocketChat.authz.hasPermission(Meteor.userId(), 'edit-other-user-active-status') !== true) {
+			throw new Meteor.Error('error-not-allowed', 'Not allowed', {
+				method: 'unsetUserReason'
+			});
+		}
+
+		const user = RocketChat.models.Users.findOneById(userId);
+
+		if (user) {
+			RocketChat.models.Users.unsetReason(userId);
+
+			return true;
+		}
+
+		return false;
+	}
+});