How to write checkbox in flask?

Question

I want to render a template.In the template, I have a checkbox called "IsValid", its value is from database. I want to read and edit the state of checkbox. After edit the checkbox, I want to store the its value in the database. How should I write the checkbox?

<div class="form-group">
    <label for="IsValid" class="control-label col-md-2">IsValid</label>       
<div class="col-md-2">
    <input type="checkbox" class="form-control" id="IsValid" name="IsValid" {{ checked="checked" if items[6]=1 else "" }} " >
</div>
</div>

In the code, items[6] is passed by view function.It's value is from database, it has two values,0 and 1.

How to modify {{ checked="checked" if items[6]=1 else "" }}?

Because it is wrong.

Wrong information:jinja2.exceptions.TemplateSyntaxError: expected token 'end of print statement', got '='

I don't know if you can understand because my English is poor.

Check out (pun intended) gist.github.com/doobeh/4668212

boardrider
– boardrider

2017-01-23 08:59:27 +00:00
Commented Jan 23, 2017 at 8:59 — boardrider
– boardrider, Commented Jan 23, 2017 at 8:59

Alexander Sharagov · Accepted Answer · 2017-10-07 20:56:58Z

9

Your jinja2 syntax is not correct. <input type="checkbox" class="form-control" id="IsValid" name="IsValid" {% if items[6]==1 %}checked{% else %}{% endif %}>

answered Oct 7, 2017 at 20:56

Alexander Sharagov

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2 Comments

SuperShoot Over a year ago

The {% else %} is unnecessary here. {% if items[6]==1 %}checked{% endif %} suffices.

Ganesan J Over a year ago

Thank you so much .I search this answer for long days. Now only I got it.

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