I have some code which looks like this:
<table>
{% for n in model %}
{% for i in formset.forms %}
{% if forloop.parentloop.counter == forloop.counter %}
<tr>
<th>{{ n }}</th>
{% for j in i %}
<th>{{ j }}</th>
{% endfor %}
</tr>
{% endif %}
{% endfor %}
{% endfor %}
</table>
I really want to keep it this way, because this is the presentation I've been asked for. However, I keep getting the "ManagementForm-data missing or tampered with" error, obviously because I'm messing with the formset.
Is there a smart way to fix the managementform-data so my POST will go through, or do I have to reformat my template completely?
(Yes, I am aware that my code contains an ugly, inefficient hack. Please feel free to suggest an alternative, but performance doesn't matter.)
You get the error about missing management form data because you haven't included the management form with {{ formset.management_form }}. See the docs for more info.
To prevent the double loop in the template, you can zip model and formset.forms in the view:
models_and_forms = zip(model, formset.forms)
Then loop through the models_and_forms in the template:
<table>
{{ formset.management_form }}
{% for n, i in models_and_forms %}
<tr>
<th>{{ n }}</th>
{% for j in i %}
<th>{{ j }}</th>
{% endfor %}
</tr>
{% endfor %}
</table>
Related
I am customizing my admin panel a little and want to add an additional column to it, so as per the docs I have to override the change_form_results.html file but how do I do it? all I see is this code in it
<tbody>
{% for result in results %}
{% if result.form and result.form.non_field_errors %}
<tr><td colspan="{{ result|length }}">{{ result.form.non_field_errors }}</td> </tr>
{% endif %}
<tr>{% for item in result %}
{{ item }}
{% endfor %}</tr>
{% endfor %}
</tbody>
what change am i suppose to make to above code
I want to render a table look like this:
<table>
<tr>
<td>some data</td>
<th>special one</th>
<td>some data</td>
...
<td>some data</td>
</tr>
...
</table>
There is a solution that can render all in the same tag.
<table>
{% for rowval in results %}
<tr>
{% for val in rowval %}
<td>{{val}}</td>
{% endfor %}
</tr>
{% endfor %}
</table>
But in my case, there would be a th at the second place for every row of the data, if there is a record.
There is another solution that not as good as the answer below as it keeps partial table, td and tr in the view.
Is there a way to implement this feature?
There are some variables available inside a django template for loop, one of them is named forloop.counter which gives you the current iteration of the loop. You can use this variable to render something differently on the second loop
<table>
{% for rowval in results %}
<tr>
{% for val in rowval %}
{% if forloop.counter == 2 %}
<th>{{ val }}</th>
{% else %}
<td>{{ val }}</td>
{% endif %}
{% endfor %}
</tr>
{% endfor %}
</table>
<tbody>
{% for j in dat %}
<tr>
{%for h in hed %}
<td>{{j.h}}</td>
{% endfor %}
</tr>
{% endfor %}
</tbody>
want to get value by object.field_name from the model. I've tried {{ j }}.{{ h }} but it does not return the value instead returns obj1.field_name. Any possible method i should try.
I would like to write a loop like this, so that I can spread the form fields out in a table. :
{% load widget_tweaks %}
{% load mathfilters %}
{% load get_range %}
{% for k in form|length|div:5|floatformat|add:1|get_range %}
<tr>
{% for field in form %}
{% if forloop.counter >= k|mul:5 and forloop.counter <= k|mul:5|add:4 %}
<th>{{ field.label_tag }}{{ field.errors }}</th>
{% endif %}
{% endfor %}
</tr>
<tr>
{% for field in form %}
{% if forloop.counter >= k|mul:5 and forloop.counter <= k|mul:5|add:4 %}
<td>{{ field|add_class:"span4" }}</td>
{% endif %}
{% endfor %}
</tr>
{% endfor %}
This doesn't work, but because the code above fails on form|length. In order for this to work, I need to get, in a template, the number of fields in a form. Does anyone know how to do this? I've searched all over but can't find anything. The following do NOT work:
form.len
form.length
form|length
Thanks!
I'm really not sure what you are looking for, but it sounds like this:
{% for field in form %}
<tr>
{% if forloop.counter0|divisibleby:5 %}
<th class="span4">{{ field.label_tag }}{{ field.errors }}</th>
{% else %}
<th>{{ field.label_tag }}{{ field.errors }}</th>
{% endif %}
</tr>
{% endfor%}
{% for field in form %}
<tr>
{% if forloop.counter0|divisibleby:5 %}
<td>{{ field|add_class:"span4" }}</td>
{% else %}
<td>{{ field }}</td>
</tr>
{% endfor %}
I dont like this code, but it was my first idea.
{% for field in form %}
{% if forloop.last %}
{{ forloop.counter }}
{% endif %}
{% enfor %}
form.fields I believe.
{% for field_name in form.fields %}
thanks for your suggestions - they helped! Here is what finally worked for me:
{% for field in form %}
{% if forloop.counter0|divisibleby:5 %}
<tr>
{% for field in form %}
{% if forloop.counter0 >= forloop.parentloop.counter0 and forloop.counter0 <= forloop.parentloop.counter0|add:4 %}
<th>{{ field.label_tag }}{{ field.errors }} </th>
{% endif %}
{% endfor %}
</tr>
<tr>
{% for field in form %}
{% if forloop.counter0 >= forloop.parentloop.counter0 and forloop.counter0 <= forloop.parentloop.counter0|add:4 %}
<td>{{ field }}</td>
{% endif %}
{% endfor %}
</tr>
{% endif %}
{% endfor %}
I have the following dictionary passed to a render function, with sources being a list of strings and title being a string potentially equal to one of the strings in sources:
{'title':title, 'sources':sources})
In the HTML template I'd like to accomplish something among the lines of the following:
{% for source in sources %}
<tr>
<td>{{ source }}</td>
<td>
{% if title == {{ source }} %}
Just now!
{% endif %}
</td>
</tr>
{% endfor %}
However, the following block of text results in an error:
TemplateSyntaxError at /admin/start/
Could not parse the remainder: '{{' from '{{'
...with {% if title == {{ source }} %} being highlighted in red.
You shouldn't use the double-bracket {{ }} syntax within if or ifequal statements, you can simply access the variable there like you would in normal python:
{% if title == source %}
...
{% endif %}
Sorry for comment in an old post but if you want to use an else if statement this will help you
{% if title == source %}
Do This
{% elif title == value %}
Do This
{% else %}
Do This
{% endif %}
For more info see https://docs.djangoproject.com/en/3.2/ref/templates/builtins/#if
{% for source in sources %}
<tr>
<td>{{ source }}</td>
<td>
{% ifequal title source %}
Just now!
{% endifequal %}
</td>
</tr>
{% endfor %}
or
{% for source in sources %}
<tr>
<td>{{ source }}</td>
<td>
{% if title == source %}
Just now!
{% endif %}
</td>
</tr>
{% endfor %}
See Django Doc
You try this.
I have already tried it in my django template.
It will work fine. Just remove the curly braces pair {{ and }} from {{source}}.
I have also added <table> tag and that's it.
After modification your code will look something like below.
{% for source in sources %}
<table>
<tr>
<td>{{ source }}</td>
<td>
{% if title == source %}
Just now!
{% endif %}
</td>
</tr>
</table>
{% endfor %}
My dictionary looks like below,
{'title':"Rishikesh", 'sources':["Hemkesh", "Malinikesh", "Rishikesh", "Sandeep", "Darshan", "Veeru", "Shwetabh"]}
and OUTPUT looked like below once my template got rendered.
Hemkesh
Malinikesh
Rishikesh Just now!
Sandeep
Darshan
Veeru
Shwetabh