I wish to edit ini files over web server, decided to use django, been using it for few days now. I can't figure out how to accomplish this. I have ini file structure looking like this:
{'GROUP', {PROPERTY : VALUE}}
Example when I read this kind of ini file:
[LOG]
FilePath = C:/Log
[CMD]
Level = 5
I will get my data structure filled like this:
{'LOG', {'FilePath' : 'C:/Log',},
{'CMD', {'Level', '5'}}}
Loop looks like this:
for group in settingsDict:
print group # group
for property in settingsDict[group]:
print property , # property
print settingsDict[group][property] # value
I am using ini file parser .
I am having trouble understanding how to correctly develop in django: views.py
is some kind of controller for django and templates are views and model would be my ini file (probably linked with db using django model), or am I getting something wrong?
I have no problem passing this dictionary to template, making a for loop in it and creating html tags like: <input type="text" name={{ property }} value={{ value }} maxlength="100" />
. But how do I then post all the edited values back to control to save them in file (or db)? I Would need all 3 values, that is GROUP, PROPERTY and VALUE
.
Then I discovered django also has html widgets, which you create in views.py
and then pass it to template. But this is where I stop understanding things, since I am creating widget in my controller class, but even if I am.
Shall I create a list of all django widgets and pass it to template? Same question occurs, how do I get all the widget values back to controller (views.py)?
Update (11.6.2012): My code looks like this: views.py
class DynForm(forms.Form):
def setFields(self, kwds):
keys = kwds.keys()
keys.sort()
for k in keys:
self.fields[k] = kwds[k]
def settings(request):
global Settings #my ini dict
kwargs = {}
for group in Settings:
for property in Settings[group]:
kwargs[property] = forms.CharField(label = property, initial = Settings[group][property])
f = DynForm()
f.setFields(kwargs)
return render_to_response('/settings.html',
{
'textWidget' : f,
})
@csrf_exempt
def save(request):
if request.method == 'POST': # If the form has been submitted...
form = DynForm(request.POST) # A form bound to the POST data
if form.is_valid(): # All validation rules pass
# process form data
# and return response
settings.html
<form action="/save/" method="post">
{% csrf_token %}
{% for field in textWidget %}
<div class="fieldWrapper">
{{ field.errors }}
{{ field.label }}: {{ field }}
</div>
{% endfor %}
<p><input type="submit" value="Save" /></p>
</form>
The problem is, DynForm(request.POST)
returns null so I can't get field values. My request.POST is correct, containing all fields and values. As much as I know, I am not suppose to parse request.POST data "by hands"?
OK, finally figured it out, taking me a lot of time (I am lacking a lot of python and django knowledge). I can't paste final solution because of copy right permissions, here is the concept:
Form
class DynamicForm(forms.Form):
def __init__(self,*k,**kw):
forms.Form.__init__(self,*k,**kw)
# loop over data from **kw
# create field
# set field default value
Notes about this code:
super(SuperForm, self).__init__(*args, **kwargs)
, you must use forms.Form.__init__(self,*k,**kw)
so you can append fields to form using self.fields attribute. self.data[field] = defVal
not initial = defVal
. Form becomes unbound and you won't be able to parse data in your request.POST method. Unbound form (and with errors) will always return is_valid() False
. With this class, you have no problems parsing request.POST
data. Looping over dynamic form fields looks like this:
View
for name,field in form.fields.items():
# name - field name
# form.data[name] - field value
Notes:
Template code loops over fields in form displaying field label and value separated with :
Template
<form action="/Tris/save/" method="post">
{% csrf_token %}
{% for field in textWidget %}
<div class="fieldWrapper">
{{ field.errors }}
{{ field.non_field_errors }}
{{ field.label }}: {{ field }}
</div>
{% endfor %}
<p><input type="submit" value="Save" /></p>
</form>
Most of the solution is from here: http://jacobian.org/writing/dynamic-form-generation/ and django documentation.
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