Hi all
Following the example in the book
<http://web2py.com/books/default/chapter/29/10/services?search=export_to_csv>,
I can display the contents of a database table (ie the list of animals in
the book example) on the screen and add a button to download the data to a
CSV file.
However, changing the model definition to use a reference table:
db.define_table('genus',
Field('description'),
format = '%(description)s')
db.define_table('animal',
Field('species'),
Field('genus', 'reference genus'))
and the controller to use the represent() method:
def animal():
animals = db().select(db.animal.ALL).render()
return dict(animals=animals)
the view continues to work fine but the export_to_csv button now raises an
error:
<type 'exceptions.AttributeError'> 'generator' object has no attribute
'export_to_csv_file'
The ability to export data to csv is important for my application.
So my question is - is there a (simple) way to export a generator object to
a csv file, or is it better to rely on table joins in the DAL rather than
the render function?
Any suggestions much appreciated!
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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