I am somewhat confused about the semantics for nested block
definitions.Let me explain:
{% block %} tag serves two purposes a) define a hole (along with the
default value) to be filled later and b) define the content to replace
the current value of the hole.
As long as we are talking about a) I perfectly understand and have no
problems with the block tag being nested inside any other tag -
including for, if, and block itself - anything. If a new value is
supplied for the block it just placed there instead of whatever is
already there.
Now with b) I am lost. For example, what is the meaning of this:
=== Base Template ===
...
{% block a %}
...
{% endblock %}
...
=== Derived Template ===
{%extends "Base Template" %)
{% for i in list %}
{% block a %}
current value={{i}}
{% endblock %}
{% endfor %}
=====
What value will be placed in the result? is this even a valid
construction?
It seems to me that the block tags defining the replacement values
should only be allowed on the top level of the template definition. In
other words the derived template from the above example should not be
considered a valid template.
Am I missing something here?
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