new to app engine - how to handle control arrays

mikemoum

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Jul 25, 2010, 7:17:36 PM7/25/10

to Google App Engine

Hi,

I'm just getting started with app engine, and am porting a php site I
developed as a learning tool. The input form on my page allows one to
enter a number of participants in a small school program. As such,
some fields are common to many people, such as last name. In my input
form, therefore, there are a column of textboxes, with name=lname[].
When the form is posted when the submit button is clicked, the global
php variable, $_POST, contains the field lname[], which is an array of
entries.

It's not clear to me how to handle such an array when it is posted in
app engine and parsed with python. How does one do this?

Thanks for your replies,
Mike

Alon Carmel

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Jul 26, 2010, 5:16:33 AM7/26/10

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first, it depends on how your working with python on app engine.

django :

self.request.GET/POST['VARNAME'] or django request.GET/POST['VARNAME']

The .POST or .GET are dictionaries of all the passed data. you can also access them via .REQUEST.

For example:

myarray = request.POST['myarray']

for item in myarray:

//do something

you can also print those arrays to see the structure... dir or print.

-
Cheers,

def AlonCarmel(request)

import simplejson as json

contact = {}

   contant['email'] = 'a...@aloncarmel.me'
   contact['twitter'] = '@aloncarmel'
   contact['web'] = 'http://aloncarmel.me'
   contact['phone'] = '+972-54-4860380'

return HttpResponse(json.dumps(contact))

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Mike Moum

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Jul 26, 2010, 4:26:15 PM7/26/10

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Here's what I'm trying to do:

class Process(webapp.RequestHandler):
def post(self):
self.response.out.write('hello<br />')
data = self.request.get('test[]')
for d in data:
self.response.out.write(d)

class MainPage(webapp.RequestHandler):
def get(self):
self.response.out.write('<html><body>')
self.response.out.write("""
<form action="/process" method="post">
<input type="text" name="test[]" />
<br />
<input type="text" name="test[]" />
<br />
<input type="text" name="test[]" />
<br />
<input type="text" name="test[]" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>""")
self.response.out.write('</body></html>')

The MainPage generates a form with four textboxes, each with name =
"test[]".
Submit sends the output to Process. With php, _POST[test[]] is an array
with four values, the values being the text entered into each of the
test boxes.
In app engine, self.request.get('test[]') apparently only gets the value
of the first text box.
So my question is whether there is a way to have an array of text boxes,
and to retrieve the value of each of them in a list or other data structure.
I know that I can generate the text boxes so that they are names test1,
test2, test3, and test4, and then write code to loop through and build
the text box names, and issue a get for each name, but that seems really
clunky and error prone.

Thanks for any help,
Mike

On 07/26/2010 04:16 AM, Alon Carmel wrote:
> first, it depends on how your working with python on app engine.
>
> django :
> self.request.GET/POST['VARNAME'] or django request.GET/POST['VARNAME']
>
> The .POST or .GET are dictionaries of all the passed data. you can
> also access them via .REQUEST.
>
> For example:
>
> myarray = request.POST['myarray']
>
> for item in myarray:
> //do something
>
> you can also print those arrays to see the structure... dir or print.
>
>
> -
> Cheers,
>
> def AlonCarmel(request)
> import simplejson as json
> contact = {}

> contant['email'] = 'a...@aloncarmel.me <mailto:a...@aloncarmel.me>'

> <mailto:google-a...@googlegroups.com>.

> To unsubscribe from this group, send email to
> google-appengi...@googlegroups.com

> <mailto:google-appengine%2Bunsu...@googlegroups.com>.

Mike Moum

unread,

Jul 26, 2010, 5:50:23 PM7/26/10

to google-a...@googlegroups.com

Got it. Need to use request.get_all()

On 07/26/2010 04:16 AM, Alon Carmel wrote:

> first, it depends on how your working with python on app engine.
>
> django :
> self.request.GET/POST['VARNAME'] or django request.GET/POST['VARNAME']
>
> The .POST or .GET are dictionaries of all the passed data. you can
> also access them via .REQUEST.
>
> For example:
>
> myarray = request.POST['myarray']
>
> for item in myarray:
> //do something
>
> you can also print those arrays to see the structure... dir or print.
>
>
> -
> Cheers,
>
> def AlonCarmel(request)
> import simplejson as json
> contact = {}

> contant['email'] = 'a...@aloncarmel.me <mailto:a...@aloncarmel.me>'

> <mailto:google-a...@googlegroups.com>.

> To unsubscribe from this group, send email to
> google-appengi...@googlegroups.com

> <mailto:google-appengine%2Bunsu...@googlegroups.com>.

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