We all have our styles of programming.  I would probably create a dict of 
times. 
But any idea which works is fine. Everyone looks at their old code and sees 
a better way. 
My motto is:  get something working and move on!  



On Wednesday, 15 July 2020 19:26:33 UTC+1, mostwanted wrote:
>
> Thank you Villas, i updated my controller like this & its giving results. 
> I a sure there is a better way to do this, a ore cleaner way & if anyone 
> cares to improve my code please dont hesitate so i could update mine & 
> learn more:
>   
> def my_form_processing(form):
>     if form.vars.class_session=='single session':
>         single_session_times=['0830-0930hrs', '0930-1030hrs', '1100-1200',
> '1200-1300', '1400-1500', '1500-1600', '1600-1700']
>         the_time=random.choice(single_session_times)
>         form.vars.the_time2=the_time
>
>     if form.vars.class_session=='evening single session':
>         evening_single_session_times=['1730-1830', '1830-1930']
>         the_time=random.choice(evening_single_session_times)
>         form.vars.the_time2=the_time
>
>     if form.vars.class_session=='double session':
>         double_session_times=['0830-1030', '1100-1300', '1400-1700']
>         the_time2=random.choice(double_session_times)
>         form.vars.the_time2=the_time2
>
>     if form.vars.class_session=='evening double session':
>         evening_double_session_times=['1730-1930']
>         the_time=random.choice(evening_double_session_times)
>         form.vars.the_time2=the_time
>
> @auth.requires_login()
> def index():
>     form=SQLFORM(db.lecture)
>     if form.process(onvalidation=my_form_processing).accepted:
>         response.flash=T('Lecture Entered')
>     return locals()
> Regards;
>
> Mostwanted
>
> On Wednesday, July 15, 2020 at 5:47:18 PM UTC+2, villas wrote:
>>
>> Before submission of form, use JS.
>> or
>> After submission,  allocate the time in the controller using 
>> *onvalidation*.  See  
>> http://www.web2py.com/books/default/chapter/29/07/forms-and-validators#onvalidation
>>
>> On Wednesday, 15 July 2020 13:58:28 UTC+1, mostwanted wrote:
>>>
>>> I thought it would be easy but its not, wrong values are being selected 
>>> from wrong lists! After submitting a form I wanna check to see if the 
>>> session field is either a single_session, double_session, 
>>> evening_single_session or evening_double_session, depending on what it is I 
>>> want time to be selected randomly from an appropriate list and inputted 
>>> into the session_time field but wrong values from wrong lists are entered, 
>>> information gets mixed up!
>>>
>>> model code:
>>> db.define_table('lecture',
>>>                 Field('subject_name', 'reference subject'),
>>>                 Field('department', 'reference departments'), #HERE
>>>                 Field('theLevels', label=SPAN('Levels'), requires=
>>> IS_IN_SET(['1.1', '1.2', '2.1', '2.2', '3.1', '3.2', '4.1', '4.2'], zero
>>> ='---Select A Level---')), #HERE
>>>                 Field('lecturer', 'reference lecturer'),
>>>                 Field('class_session', requires=IS_IN_SET(['single 
>>> session', 'double session', 'evening single session', 'evening double 
>>> session'], zero='----Select A Session Period----')),
>>>                 Field('session_time', readable=False, writable=False),
>>>                 Field('class_room', readable=False, writable=False),
>>>                 Field('controller', readable=False, writable=False)
>>>                )
>>>
>>> single_session_times=['0830-0930hrs', '0930-1030hrs', '1100-1200',
>>> '1200-1300', '1400-1500', '1500-1600', '1600-1700']
>>> double_session_times=['0830-1030', '1100-1300', '1400-1700']
>>>
>>> evening_single_session_times=['1730-1830', '1830-1930']
>>> evening_double_session_times=['1730-1930']
>>> '''
>>> After submitting the form, have system scheck the session, if the 
>>> session is any of whats defined give it a proper time
>>> '''
>>> if db.lecture.class_session=='single session':
>>>     the_time=random.choice(single_session_times)
>>>     db.lecture.session_time.default=the_time
>>>
>>>     
>>> elif db.lecture.class_session=='evening single session':
>>>     the_time=random.choice(evening_single_session_times)
>>>     db.lecture.session_time.default=the_time
>>>
>>>     
>>> elif db.lecture.class_session=='double session':
>>>     the_time=random.choice(double_session_times)
>>>     db.lecture.session_time.default=the_time
>>>
>>>     
>>> elif db.lecture.class_session=='evening double session':
>>>     the_time=random.choice(evening_double_session_times)
>>>     db.lecture.session_time.default=the_time
>>>
>>>
>>>
>>> How can i achieve this with proper results from the intended list
>>>
>>> Mostwanted
>>>
>>

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