[web2py] Re: Multiple form flash problem.
Hi David, Sorry if anything here is impractical, but here's a couple of thoughts... I very much appreciate you sharing your thoughts with me, they are helpful and they add to range of possible solutions to implement things. The reason I implemented things the way I did is that I am building this web application for a psychologist and he insisted on implementing it this way for cognitive ergonomic reasons. Kind regards, Annet.
[web2py] Re: Multiple form flash problem.
Glad to help and sounds like an interesting project. I am building this web application for a psychologist and he insisted on implementing it this way for cognitive ergonomic reasons. Hmm, I thought 'cognitive ergonomic reasons' was just an excuse for lying on the couch! :-) D
[web2py] Re: Multiple form flash problem.
@Jonathan, Thanks for the link, indeed the first reply is very useful. @David, Thanks for posting your idea. It wasn't obvious to me why you needed two forms. Why not use one and test to see what has been filled in? Because I could not figure out how to test what has been filled in. I am working on a sort of back-office part of a cms. The back-office user should be able to search for company data entering either the company name and city of residence or the two part registration number at the Chamber of Commerce or the two part postal code. Since 'either .. or' has to be clear and for example the sub-dossier-number of the CoC registration and the numeric part of a postal code are both four characters long, I couldn't think of anything else than using three forms. Kind regards, Annet.
[web2py] Re: Multiple form flash problem.
Sorry if anything here is impractical, but here's a couple of thoughts... If you wish to limit the user to make one search only... * Make an input box to enter the search value, and a drop-down box to specify the search type. * If using several input boxes, you could use JS. When user starts typing in one search box, JS blanks the others. And/or, on form accepts make an onvalidation function and return false if more than one box completed. You may also wish to consider allowing the user to specify multiple searches at the same time. If he fills in 3 boxes, do 3 searches and list all the results. Regards, D On Mar 6, 8:11 am, annet annet.verm...@gmail.com wrote: @Jonathan, Thanks for the link, indeed the first reply is very useful. @David, Thanks for posting your idea. It wasn't obvious to me why you needed two forms. Why not use one and test to see what has been filled in? Because I could not figure out how to test what has been filled in. I am working on a sort of back-office part of a cms. The back-office user should be able to search for company data entering either the company name and city of residence or the two part registration number at the Chamber of Commerce or the two part postal code. Since 'either .. or' has to be clear and for example the sub-dossier-number of the CoC registration and the numeric part of a postal code are both four characters long, I couldn't think of anything else than using three forms. Kind regards, Annet.
[web2py] Re: Multiple form flash problem.
Denes and Jonathan, Thank you both for your replies, now I do understand the logic of the function. @Denes, So, in Python you can only simulate a CASE statement using if's? Could you provide me with an example? Kind regards, Annet
Re: [web2py] Re: Multiple form flash problem.
On Mar 5, 2011, at 8:44 AM, annet wrote: So, in Python you can only simulate a CASE statement using if's? Could you provide me with an example? The first reply here is useful: http://stackoverflow.com/questions/594442/choosing-between-different-switch-case-replacements-in-python-dictionary-or-if
[web2py] Re: Multiple form flash problem.
Hi Annet, It wasn't obvious to me why you needed two forms. Why not use one and test to see what has been filled in? Just another idea. Regards, David On Mar 5, 4:44 pm, annet annet.verm...@gmail.com wrote: Denes and Jonathan, Thank you both for your replies, now I do understand the logic of the function. @Denes, So, in Python you can only simulate a CASE statement using if's? Could you provide me with an example? Kind regards, Annet
[web2py] Re: Multiple form flash problem.
Hi Denes, Thanks for your reply, removing the else: ... solved the problem. I followed the if: .. elif: .. else: .. pattern used in the chapter on forms and validators in the web2py manual. Why does it work in a single form function and why doesn't it work in a multiple form function? Since you are not redirecting after an accepts it just comes back to the same controller, creating new forms and resetting the response.flash messages. Should I redirect after an accepts? The view has a two column layout, the left column contains a search form the right column displays the search results. Hi Jonathan, Thanks for your reply. I added the response.flash='Fill in form' line of code before the first call to accepts, the actual text contains more than just the 'Fill in form' directive. Kind regards, Annet.
[web2py] Re: Multiple form flash problem.
On Mar 2, 3:27 am, annet annet.verm...@gmail.com wrote: Hi Denes, Thanks for your reply, removing the else: ... solved the problem. I followed the if: .. elif: .. else: .. pattern used in the chapter on forms and validators in the web2py manual. Why does it work in a single form function and why doesn't it work in a multiple form function? For it to work the same you would have to nest the IFs differently, simulating a CASE statement from other languages. Since you are not redirecting after an accepts it just comes back to the same controller, creating new forms and resetting the response.flash messages. Should I redirect after an accepts? The view has a two column layout, the left column contains a search form the right column displays the search results. That depends on your app's logical flow. Hi Jonathan, Thanks for your reply. I added the response.flash='Fill in form' line of code before the first call to accepts, the actual text contains more than just the 'Fill in form' directive. Kind regards, Annet. On Mar 2, 3:27 am, annet annet.verm...@gmail.com wrote: Hi Denes, Thanks for your reply, removing the else: ... solved the problem. I followed the if: .. elif: .. else: .. pattern used in the chapter on forms and validators in the web2py manual. Why does it work in a single form function and why doesn't it work in a multiple form function? Since you are not redirecting after an accepts it just comes back to the same controller, creating new forms and resetting the response.flash messages. Should I redirect after an accepts? The view has a two column layout, the left column contains a search form the right column displays the search results. Hi Jonathan, Thanks for your reply. I added the response.flash='Fill in form' line of code before the first call to accepts, the actual text contains more than just the 'Fill in form' directive. Kind regards, Annet.
Re: [web2py] Re: Multiple form flash problem.
On Mar 2, 2011, at 12:27 AM, annet wrote: Hi Denes, Thanks for your reply, removing the else: ... solved the problem. I followed the if: .. elif: .. else: .. pattern used in the chapter on forms and validators in the web2py manual. Why does it work in a single form function and why doesn't it work in a multiple form function? While you can put as many forms as you like on the page, the user can submit only one at a time. The else clause is invoked when you see a form that hasn't been submitted. So if the user submits your first form, you'll put something appropriate in response.flash, but you'll execute the else cause for the second form and clobber it. Since you are not redirecting after an accepts it just comes back to the same controller, creating new forms and resetting the response.flash messages. Should I redirect after an accepts? The view has a two column layout, the left column contains a search form the right column displays the search results. Don't redirect unless the flow of your logic requires it. But go over your logic keeping in mind that at most only one form at a time will be submitted. Hi Jonathan, Thanks for your reply. I added the response.flash='Fill in form' line of code before the first call to accepts, the actual text contains more than just the 'Fill in form' directive. Kind regards, Annet.
[web2py] Re: Multiple form flash problem.
Hi Annet,
just remove the
else:
response.flash='Fill in form'
parts from your code.
Since you are not redirecting after an accepts it just comes back to
the same controller, creating new forms and resetting the
response.flash messages.
On Mar 1, 8:07 am, annet annet.verm...@gmail.com wrote:
I implemented a one form search function:
def search():
rows=[]
form=SQLFORM.factory(
Field('company',length=54,requires=IS_NOT_EMPTY())
if form.accepts(request.vars,session):
rows=db(..).select(..)
if rows:
response.flash='Search result:'
else:
response.flash='No search result!'
elif form.errors:
response.flash='Form contains errors'
else:
response.flash='Fill in form'
return dict(form=form,rows=rows)
This code works as expected. Now when I make it a two form search
function:
def search():
rows=[]
form1=SQLFORM.factory(
Field('company',length=54,requires=IS_NOT_EMPTY())
form2=SQLFORM.factory(
Field('city',length=54,requires=IS_NOT_EMPTY())
if form1.accepts(request.vars,session,formname='form1'):
rows=db(..).select(..)
if rows:
response.flash='Search result:'
else:
response.flash='No search result!'
elif form1.errors:
response.flash='Form contains errors'
else:
response.flash='Fill in form'
if form2.accepts(request.vars,session,formname='form2'):
rows=db(..).select(..)
if rows:
response.flash='Search result:'
else:
response.flash='No search result!'
elif form2.errors:
response.flash='Form contains errors'
else:
response.flash='Fill in form'
return dict(form1=form1,form2=form2,rows=rows)
... the flash no longer displays correctly i.e. when the form first
displays, the flash displays the 'Fill in form' message and after form
submission and rows containing company objects, instead of displaying
'Search result' the flash still displays the 'Fill in form' message.
How should I change the code for the flash to display correctly.
Kind regards,
Annet
Re: [web2py] Re: Multiple form flash problem.
On Mar 1, 2011, at 7:04 AM, DenesL wrote: just remove the else: response.flash='Fill in form' parts from your code. Since you are not redirecting after an accepts it just comes back to the same controller, creating new forms and resetting the response.flash messages. This 'else' case isn't very useful anyway; I think of it as a placeholder. If you really *do* want a flash message for this case, just set it directly as the default response.flash before the first call to accepts.
