Hi All,
This is my first time posting a question, so thanks to Massimo and they
whole community for making web2py. Its great!
I am trying to export results from a customized full-text search using
SQLFORM.grid. My backend is a Postgres db, and I successfully define
"search_widget" and "searchable" functions that are passed to the
SQLFORM.grid to do the full-text search. It will works pretty well on the
web app. However, once I click the export button, SQLFORM.grid apparently
recreates the query using the default SQLFORM.build_query and ignores the
correct query which I define in searchable. After poking around in
sqlhtml.py, I found this is so because the exporter only conditions on
request.vars.keywords before calling SQLFORM.build_query, and it does not
check for callable(searchable) which I think it should do. In fact, I
fixed it by editing sqlhtml.py to force the exporter to condition on
(request.vars.keywords *and callable(searchable)*) before setting up the
rows object to export. The code I added is in bold below (on line 2298 of
sqlhtml.py):
if request.vars.keywords *and callable(searchable)*:
try:
#the query should be constructed using searchable
fields but not virtual fields
sfields = reduce(lambda a, b: a + b,
[[f for f in t if f.readable and not
isinstance(f, Field.Virtual)] for t in tables])
dbset = dbset(SQLFORM.build_query(
sfields, request.vars.get('keywords', '')))
rows = dbset.select(left=left, orderby=orderby,
cacheable=True,
*selectable_columns)
except Exception, e:
response.flash = T('Internal Error')
rows = []
else:
rows = dbset.select(left=left, orderby=orderby,
cacheable=True, *selectable_columns)
Is this a bug or is there a better way to do an export of customized search
results using SQLFORM.grid? I'm using the current version of everything
(web2py 2.9.11, Postgres 9.3, Python 2.7.8). Thx again,
dex*
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