On Fri, 22 Feb 2013 00:08:01 +0100, Ferrous Cranus <nikos.gr...@gmail.com>
wrote:
Τη Παρασκευή, 22 Φεβρουαρίου 2013 12:03:59 π.μ. UTC+2, ο χρήστης Michael
Ross έγραψε:
On Thu, 21 Feb 2013 22:22:15 +0100, Ferrous Cranus
<nikos.gr...@gmail.com>
wrote:
> Τη Πέμπτη, 21 Φεβρουαρίου 2013 10:14:13 μ.μ. UTC+2, ο χρήστης MRAB
> έγραψε:
>> On 2013-02-21 19:38, Ferrous Cranus wrote:
>>
>> > import datetime from datetime
>>
>>
>>
>> Should be:
>>
>>
>>
>> from datetime import datetime
>>
>>
>>
>> >
>>
>> > try:
>>
>> > datetime.strptime( date, '%d %m %Y' )
>>
>>
>>
>> That parses the date and discards the result.
>>
>>
>>
>> > date = date.strptime( '%Y-%m-%d' )
>>
>>
>>
>> 'date' is a string, it doesn't have a 'strptime' method.
>>
>>
>>
>> When you parsed the date you got a datetime object; _that_ has the
>>
>> 'strptime' method.
>
> I don't need to store the date i just want to make sure is entered
> correctly.
> I would like to have the user type the date like
>
> 21 02 2013
> and then convert it to 2013-02-21 because thats how mysql wants the
date
> in order to store it.
> Please show me how to write this.
>
> Also, can you show me how to write it that if so even if the user
> entered date is wrong it doesn't just crash the cgi-script?i know i
can
> use tr: expect: but i want to avoid it, somehow i need to check the
date
> in the same if statemnt like i do with the other user defined varibles
> for validity.
>
You *have* to try/expect in order to not have the script crash.
Think user typo: 21 02 2ß13
Personally, I'd use a javascript on the html so users can't POST invalid
dates.
I use mootools for that. It accepts 21/02/2013, 21-02-2013 and 21.02.13
as
input,
and you end up with 21.02.2013 posted to your cgi in any case.
i just want to check for date validity from within ha same if statemnt
like i check the other variables and i tried a regualr expression just
now:
if( task and ( price and price.isdigit() and price.__len__() <= 3 ) and
( date and re.search( r'(\d+) (\d+) (\d+)', date ) ) ):
Do i ahve somehting wrong in it?
will the if become true if the user enters 21 02 2013 ?
I pretend not to know, try it out?
And try with invalid inputs, too:
211 02 2013
21 99 2013
31 02 2013
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