Hi i have an appengine application with the following db.Model:
class Cinema(db.Model):
name = db.StringProperty()
address = db.StringProperty()
distance = db.IntegerProperty()
user = db.ReferenceProperty(RunningUser)
When I fill my template everythings works fine:
{% for cinema in cinemas %}
<tr>
<td><img src="/images/cinema.png"></td>
<td>
<a href="...">
<h2>{{cinema.name}}</h2>
</a>
{{cinema.address}}
</td>
<td>
{% if cinema.distance > 10000 %}
<p>red</p>
{% endif %}
</td>
</tr>
{% endfor %}
Except the if statement. Python raises a TemplateSyntaxError: 'if' statement improperly formatted exception. According to Django it should be fine. So what is wrong with these three lines?
{% if cinema.distance > 10000 %}
<p>red</p>
{% endif %}
try this:
{% if cinema.distance > 10000 %}
<p>red</p>
{% endif %}
from: https://docs.djangoproject.com/en/dev/ref/templates/builtins/?from=olddocs#id3
Related
I am trying to display the count of objects of each model. For this i have edited env > lib > django > contrib > templates > admin > app_list.html, bellow is the code. I am having to doubts here.
I know this is not optimal solution where editing directly in env django folder. So how i can edit the app_list.html so that i can display the count.
I tried {{model}}, but was not able to display count, always come as blank as you can see in image.
Possible out i tried in template html-
{{model}}
Object - {'name': 'Exam categorys', 'object_name': 'ExamCategory', 'perms': {'add': True, 'change': True, 'delete': True, 'view': True}, 'admin_url': '/admin/quiz/examcategory/', 'add_url': '/admin/quiz/examcategory/add/', 'view_only': False}
{{model.count}}
Object -
{{model.all}}
Object -
{{model.objects.all}}
Object -
----------------------------------------------------------------
env > lib > django > contrib > templates > admin > app_list.html
----------------------------------------------------------------
{% load i18n %}
{% if app_list %}
{% for app in app_list %}
<div class="app-{{ app.app_label }} module{% if app.app_url in request.path %} current-app{% endif %}">
<table>
<caption>
{{ app.name }}
</caption>
{% for model in app.models %}
<tr class="model-{{ model.object_name|lower }}{% if model.admin_url in request.path %} current-model{% endif %}">
{% if model.admin_url %}
<th scope="row"><a href="{{ model.admin_url }}"{% if model.admin_url in request.path %} aria-current="page"{% endif %}>{{ model.name }}</a></th>
{% else %}
<th scope="row">{{ model.name }}</th>
{% endif %}
<!-- Temporary added this line to get count from model -->
{% if model.add_url %}
<td>Object - {{ model.count }}</td>
{% else %}
<td></td>
{% endif %}
{% if model.add_url %}
<td>{% translate 'Add' %}</td>
{% else %}
<td></td>
{% endif %}
{% if model.admin_url and show_changelinks %}
{% if model.view_only %}
<td>{% translate 'View' %}</td>
{% else %}
<td>{% translate 'Change' %}</td>
{% endif %}
{% elif show_changelinks %}
<td></td>
{% endif %}
</tr>
{% endfor %}
</table>
</div>
{% endfor %}
{% else %}
<p>{% translate 'You don’t have permission to view or edit anything.' %}</p>
{% endif %}
I have the following
<thead>
<tr>
<th>Name</th>
{% if datas|length > 0 %}
{% set longest = [] %}
{% for data in datas %}
{% if data['numbers']|length > longest|length %}
{% set longest = data['numbers'] %}
{% endif %}
{% endfor %}
{% for i in longest %}
<th></th>
{% endfor %}
{% endif %}
</tr>
</thead>
I am trying to make enough headers to accommodate the longest list of numbers in the datas dictionary.
Can anyone see what I am doing wrong?
Chris
Django 2.2
I have a list view controlled by admin.py class. No custom template, all default. I can control what fields from the table should be shown in the view with this:
fields = ('myfield1','myfield2', ...).
Each row in the list table has a checkbox in the first column, the source looks like this:
<td class="action-checkbox">
<input type="checkbox" name="_selected_action" value="123" class="action-select">
</td>
My questions are:
How to disable those checkboxes (preferably, from Django code, without introducing a custom template) ?
Can it be done for SOME of the checkboxes (let's say I have a list of pk ids for the rows I don't want to see checkboxes.)
You can delete Items with those CheckBoxes, but if you want to customize your own admin page to override it
You can use this doc https://docs.djangoproject.com/en/3.0/ref/contrib/admin/#admin-overriding-templates
This question is 2 years old now, but for the case someone still needs it, the following code works to overwrite the change-list_results.html:
{% load i18n static %}
{% if result_hidden_fields %}
<div class="hiddenfields">{# DIV for HTML validation #}
{% for item in result_hidden_fields %}{{ item }}{% endfor %}
</div>
{% endif %}
{% if results %}
<div class="results">
<table id="result_list">
<thead>
<tr>
{% for header in result_headers %}
{% if "checkbox" in header.text %}
{% else %}
<th scope="col" {{ header.class_attrib }}>
{% if header.sortable %}
{% if header.sort_priority > 0 %}
<div class="sortoptions">
<a class="sortremove" href="{{ header.url_remove }}" title="{% translate "Remove from sorting" %}"></a>
{% if num_sorted_fields > 1 %}<span class="sortpriority" title="{% blocktranslate with priority_number=header.sort_priority %}Sorting priority: {{ priority_number }}{% endblocktranslate %}">{{ header.sort_priority }}</span>{% endif %}
</div>
{% endif %}
{% endif %}
<div class="text">{% if header.sortable %}{{ header.text|capfirst }}{% else %}<span>{{ header.text|capfirst }}</span>{% endif %}</div>
<div class="clear"></div>
{% endif %}
</th>{% endfor %}
</tr>
</thead>
<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 %}
{% if "_selected_action" in item %}
{% else %}
{{ item }}
{% endif %}
{% endfor %}
</tr>
{% endfor %}
</tbody>
</table>
</div>
{% endif %}
It stops stops the output of the for loops if theres a checkbox in there. --> It just removes the checkboxes.
I have the following model
class Table(models.Model):
# Some not important attrs
rows = IntegerField(etc)
cols = IntegerField(etc)
Then I have my view where I'm rendering objects of this model. And I need to build some HTML tables based on the quantity of each objects' rows and cols.
View:
get_tables(request):
tables = Table.objects.all()
return render(request, 'tables.html', {'tables': tables})
I'm trying to do something like:
{% for table in tables %}
<table>
<thead>
<tr>
{% for col in table.cols %}
<th>column label here</th>
{% endfor %}
</tr>
</thead>
<tbody>
{% for row in table.rows %}
<tr>my row</tr>
{% endfor %}
</tbody>
</table>
{% endfor %}
I know it is possible to loop for key in dict. But the values cols and rows are integers. How can I achieve this on a Django template?
Try
{% for table in tables %}
<table>
<thead>
<tr>
{% with ''|center:table.cols as range %}
{% for _ in range %}
<th>column label here</th>
{% endfor %}
{% endwith %}
</tr>
</thead>
<tbody>
{% with ''|center:table.rows as range %}
{% for _ in range %}
<tr>my row</tr>
{% endfor %}
{% endwith %}
</tbody>
</table>
{% endfor %}
# You can take use of filter tags in django template
# For Example
Step 1:- Create 'templatetags' package in your app folder.
Step 2:- Create filter.py in 'templatetags' package
Step 3:-
from django import template
register = template.Library()
def table_rows(value):
value_list = [value]
html_row = ''
for val in value_list:
html_row += '<tr></tr>'
return html_row
def table_cols(value):
value_list = [value]
html_cols = ''
for val in value_list:
html_cols += '<td>Hello</td>'
return html_cols
register.filter('table_rows', table_rows)
register.filter('table_cols', table_cols)
Step 4:-
# Your template can be:-
{% load filter %}
{% for table in tables %}
<table border="1">
{% autoescape off %}
{{table.rows|table_rows}}
{{table.cols|table_cols}}
{% endautoescape %}
</table>
{% endfor %}
# You can make changes according to your requirement
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