On Tue, 2009-03-10 at 10:04 -0700, johan.uhIe wrote:
> I have the following hierarchical data structure making use of the
> datetime-object, dictionarys, arrays and tuples all at once.
>
> { datetime :
> { (datetime, datetime) :
> [<object1>,<object2>]
> }
> }
>
> So a dictionary, holding datetime objects as keys and another
> dictionary as value. The second dictionary has tuples consisting of
> two datetime objects as keys and an array as value.
>
> Reason for this complicated structure is the supposed easy handling in
> the template with three for-loops to iterate over the two dictionarys
> and the array. The first datetime object holds a specific day whereas
> the tuple is holding a time period. The array holds the objects
> related to the time period.
>
> So I used this in a template as following:
>
> {% for key,value in dictionary.items %}
> <h2>{{key|date:"Y-m-d"}}</h2>
> {% for key,value in value %}
> <h3>{{ key.0|date:"H.i" }} - {{ key.1|date:"H.i" }}</h3>
> {{ value }} // Array handling
> {% endfor %}
> {% endfor %}
>
> But the problem is, that inside the second for loop the key/value
> assignment does not work properly. I expected the tuple to be in key,
> so I can access it via key.0 and key.1 and the array to be in value.
> What actually happens is, that my first datetime object from the tupel
> is in key and the second datetime is in value but the array is nowhere
> to be found.
The "value" in the outer loop is a dictionary. So in the inner loop you
need to loop over value.items. "foo in some_dictionary" loops over the
keys of the dictionary and, since that's a tuple, the two elements of
the tuple are being assigned to the two variables you're providing.
Regards,
Malcolm
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