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What does the vertical bar mean in Flask Templates?


What does the vertical bar mean in Flask Templates?

By : Fan Yang
Date : November 20 2020, 11:01 PM
With these it helps I am working on a flask tutorial, and in the sample code, it contains the following:
code :
| {% for pr in providers %}
    <a href ="javascript:set_openid('{{ pr.url}}', '{{ pr.name }}');">{{ pr.name }}</a> |
{% endfor %}


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Structuring jinja/flask templates with multiple child templates?

Structuring jinja/flask templates with multiple child templates?


By : user3120241
Date : March 29 2020, 07:55 AM
wish of those help You certainly can do it this way, but it gets complicated really quickly. The better solution is almost certainly to include all of your navigation in one include:
code :
<nav class="top-navigation">
  <ul class="nav nav-first-level">
    {{ nav_entry("1st_ds", "1st Data Source", page, sub_page) }}
    {{ nav_entry("2nd_ds", "2nd Data Source", page, sub_page) }}
    {{ nav_entry("3rd_ds", "3rd Data Source", page, sub_page) }}
  </ul>
</nav>

{% macro nav_entry(identifier, title, page_id, sub_page_id) %}
  {% set attrs = {"class": "nav-selected"} if identifier == page_id else {} %}
  <li{{ attrs | xmlattrs }}><a href="#goes-somewhere">{{ title }}</a>
    <ul class="nav nav-second-level">
      <li{{ set_if_selected('1st_sub_entry', sub_page_id) }}>1st Sub-Entry</li>
      {# Other set_if_selected calls left off for clarity) #}
      <li>2nd Sub-Entry</li>
      <li>3rd Sub-Entry</li>
    </ul>
  </li>
{% endmacro %}

{% macro set_if_selected(identifier, to_match) %}
  {{ {"class": "nav-selected"} if identifier == to_match else {} | xmlattrs }}
{% endmacro %}
<nav class="top-navigation">
  <ul class="nav nav-first-level">
    {% for nav_item in navigation %}
      {{ nav_entry(nav_item) }}
    {% endfor %}
  </ul>
</nav>
# Tuples are in the form
# (Link Title, URL, Is Selected?, Sub Menu Items)
# And sub menu items are tuples in the form
# (Link Title, URL, Is Selected?)
navigation = [("1st Data Source", "/some/url", true, []),
    ("2nd Data Source", "/some/url/2", false, [("A", "/a", false)]),
    ("3rd Data Source", "/some/url/3", false, [("B", "/b", false),("C", "/c", false)])]
How to run Flask without caching templates?

How to run Flask without caching templates?


By : Mat
Date : March 29 2020, 07:55 AM
To fix the issue you can do You need to enable the debug mode in your app config: app.debug = True or app.config['DEBUG'] = True. Just make sure you enable this flag only in development since it can have performance and security implications. You can find more details in Flask documentation.
Flask template not found even when file exists and templates folder is called 'templates'?

Flask template not found even when file exists and templates folder is called 'templates'?


By : Mike Nichols
Date : March 29 2020, 07:55 AM
I hope this helps you . Since you haven't installed your project as a package in the virtualenv, you need to run from the root directory of the project so that Python and Flask get the correct working directory. Otherwise Flask has no idea how to find the templates.
Also, you really shouldn't run a Flask application line by line in an IPython session, you should run it with the flask command.
code :
set FLASK_APP=app.py
flask run
python app.py
Rendering (many) templates in Flask

Rendering (many) templates in Flask


By : Alireza
Date : March 29 2020, 07:55 AM
help you fix your problem First, based on what you outlined, you basically need only one route with different options, so on Flask, you can use Flask variable rules to handle it with one route:
code :
@app.route('/', defaults={'page':None})
@app.route('/<page>')
def index(page):
    if page == None: 
        return render_template('index.html')
    else:
        return render_template(page)
<body>
    <a href="page1.html" id="optionA">Option A</a>
    <a href="page2.html" id="optionB">Option B</a>
</body>
List of all the templates in flask

List of all the templates in flask


By : Bharath
Date : March 29 2020, 07:55 AM
will help you No, this is not possible. Templates don't have routes. Routes render templates. There is no way to know what templates are rendered without actually evaluating each route. There is no guarantee that only one route renders a template, or that a route only renders one template.
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