How can I open a temporary PDF in a new tab

[csavorgn]

Hi everyone,

I'm using a SQLFORM.factory to get the data I need to generate a PDF file using ReportLab.

I'm using a submit  button to check for the data entered and to open a new page using redirect:

redirect(URL("default","result", vars=dict(start=form.vars.date_start,
                                           end=form.vars.date_end)))

In the controller default.py I defined

def result():
    start = request.vars['start']
    end = request.vars['end']
    filename = os.path.join(request.folder,'private',str(uuid4()))
    create_pdf(filename, db, start, end)
    response.headers['Content-Type']='application/pdf'
    data = open(filename,"rb").read()
    os.unlink(filename)
    return data

(The code I'm using is more complex than this.)

Maybe it is not the cleanest way to do this, but when I click on the button the temporary PDF opens on the same tab in the browser.

In my app I would like to get a different behaviour: when I click on the submit button the PDF should open on a new tab. The PDF should be temporary as it is in my current code.

How can I achieve the behaviour I want?

Thanks

Carlo

[Oli]

 

URL('Link for a new tab', _class="btn" , _title=T("in a new tab"), _href=URL("default","yourcontroller",args=[row.id]), _target='_blank')

[csavorgn]

I tried to use your code (with the obvious modifications) but I can't really figure out how to use it... 

Could you better explain your solution?

Thanks

Carlo

[csavorgn]

Would there be a way to do what I explained if I give up using the SQLFORM.factory? How could I validate my form using e.g. JavaScript?

[Oli]

 

example with a button. You can put the button in SQLFORM.factory:

 

def index():

    # in an new tab

    # _target='_blank'

 

    # set start and end for example with SQLFORM.factory

 

    button = A('create a pdf-report in an new tab', _class="btn" , _title=T("create PDF-report"), _href=URL("default","result"), args=[start, end]), _target='_blank')

 

    return dict(button=button)

def result():
    start = request.vars['start']
    end = request.vars['end']
    filename = os.path.join(request.folder,'private',str(uuid4()))
    create_pdf(filename, db, start, end)
    response.headers['Content-Type']='application/pdf'
    data = open(filename,"rb").read()
    os.unlink(filename)
    return data

 

 

Am Mittwoch, 23. April 2014 15:55:50 UTC+2 schrieb csavorgn:

[csavorgn]

I managed to put the link in the SQLFORM.factory, but I don't manage to use the form validation. The reason is that "start"and "end"must be defined when the html page is created (to put their values in "button"). Is this correct or am I missing something? Thanks

Carlo