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POCreate a dynamic search form in Django
 

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  1. POCreate a dynamic search form in Django
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    <p>in my Django 1.5 model I'm trying to create a form that let me book a place in a study room.</p> <p>The study room is defined as follows in <code>models.py</code>:</p> <pre><code>class StudyRoom(models.Model): name = models.CharField(max_length = 30, primary_key = True) city = models.CharField(max_length = 30) placesno = models.IntegerField() def __unicode__(self): return self.name </code></pre> <p>and this is the relative form:</p> <pre><code>class SearchSeat(forms.Form): morning = 'AM' evening = 'PM' daysection_choices = ((morning, 'Morning'), (evening, 'Evening'),) city = forms.ChoiceField(choices = [], required=True, label='Select a city?') study_room = forms.ChoiceField(choices = [], required=True, label='Select a study room?') day = forms.DateField(label = 'Select a day', required=True, widget=forms.extras.SelectDateWidget(years=range(2014, 2015))) section = forms.ChoiceField(choices=daysection_choices, label = 'Morning (form 8.00 to 13.00) or evening (from 13.00 to 18..)?') def __init__(self, *args, **kwargs): super(SearchSeat, self).__init__(*args, **kwargs) self.fields['city'].choices = StudyRoom.objects.all().values_list("city","city").distinct() search_city = self.fields['city'] self.fields['study_room'].choices = StudyRoom.objects.filter(city = search_city).values_list("name") </code></pre> <p>The objective was to let the user select the city and then filter the study room and show only the ones in the selected city, all in one form without changing page.</p> <p>The code written like this doesn't work and I'm starting to think that there isn't a solution without using client side side scripting (it's a Django+Python project so we are supposed to use only those two instruments).</p>
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    1. COMake an ajax call back to fetch the filtered results. A nice way to doing that with django is http://www.dajaxproject.com/
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    2. COProbabily the solution but it's way to complex and I'm on a deadline. I'll probabily just split the form and have one just for the city that trigger the rendering of the second one. Thanks for the link though!
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