Version 3 (modified by Pratyush Nigam, 13 years ago) ( diff )


Frequently Asked Questions (FAQ)

Frequently Encountered Problems

  • If it happens that you notice the following in the Traceback of the ticket encountered after a fresh pull -

OperationalError: Cannot add a UNIQUE column

Then it is highly likely that there is a data migration issue. In this circumstance, it is recommended that the contents of the folder /eden/database/ be deleted. For more, information in this regard and any other related problem, the following links can be referred from -

Select Element for Users

By: Robby O'Connor
Date: 2010-05-21

To have a field displayed as a select element which has the names of the users in the database:

<table>.<field>.requires = IS_NULL_OR(IS_IN_DB(db,,lambda id : shn_user_represent(


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