Bring Reporting Services back to life

Few weeks ago our test reporting services installation was broken after extensive "DROP" statements usage over and over again :). This is a test server after all.
So, reporting services site started returning the following error:
An unexpected error occurred in Report Processing. (rsInternalError) Get Online Help Database 'ReportServerTempDB'
cannot be opened because it is offline.

Fortunately,there were good news: I still had our reports intact. However, I couldn't use them. After an hour or so the decision came to my mind:

I've performed the following steps:
1. First I created an empty ReportServerTempDB database by using MSSQL Enterprise Manager.
2. I created a role named: RSExecRole in ReportServerTempDB database and added RS user in this role. Hopefully, this was my current user also.
3. I opened ReportServices installation folder (C:\Program Files\Microsoft SQL Server\MSSQL\Reporting Services\ReportServer)...
4. and executed CatalogTempDB.sql over ReportServerTempDB

and our reporting services installation is still online :)