Python Field validation example

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DreamFactoryTutorialsPython Field validation example
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This script validates that certain fields are in the POST request when creating records. If not, an exception is raised
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This script validates that certain fields are in the POST request when creating records. If not, an exception is thrown and 500 error returned to the client. If the script exits normally with no exception being thrown, then the records will be written to the database and the post-process script, if any, will be run.  
and 500 error returned to the client. If the script exists normally with no exception being thrown then the records will  
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be written to the database and the post-process script, if any, will be run.  
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'''''NOTE: DreamFactory Python scripting requires 'bunch' package to be installed on server. ''''' <code>sudo pip install bunch</code>
 
'''''NOTE: DreamFactory Python scripting requires 'bunch' package to be installed on server. ''''' <code>sudo pip install bunch</code>

Revision as of 22:20, 15 July 2016

This script validates that certain fields are in the POST request when creating records. If not, an exception is thrown and 500 error returned to the client. If the script exits normally with no exception being thrown, then the records will be written to the database and the post-process script, if any, will be run.

NOTE: DreamFactory Python scripting requires 'bunch' package to be installed on server. sudo pip install bunch

# POST /api/v2/db/_table/account triggers script db._table.account.post.pre_process
# This script runs BEFORE records are written to the db.
 
payload = event.request.payload;
 
if(payload.resource):
    for record in payload.resource:
        if 'annual_revenue' not in record:
            raise ValueError('Missing field annual revenue');
        if record.annual_revenue <= 0:
            raise ValueError('Annual Revenue must be > 0');