CODEWITHSUNDEEP
odooqweb
user280960
user280960

Reputation: 721

QWeb template check object is empty

I am facing problem while showing the data from database into Qweb Template of odoo v8.

The codes follows:

The controller gives me object from database : like stock.quant(), the object is from stock_quant table. In this scenario the object is empty. Now i have to check if the object is empty in template. so i tried following :

My Controller: quant.py 

quant = { get value from table }
return request.render('test', {'quant':quant})

in my template i have to check if quant is empty or not, so i tried :

<t t-if="quant is Empty" />  # doesn't work
<t t-if="quant is False" />  # doesn't work

also checked other way around

<t t-if="quant is not Empty" />  # doesn't work
<t t-if="quant is not False" />  # doesn't work

Can someone help me in determining how to check object is empty in Qweb Template.

Thanks,

Upvotes: 0

Views: 3874

Answers (2)

simahawk
simahawk

Reputation: 2431

You using the wrong comparison operator.

In python is compares identity, hence if the value is {} or None your check will fail even if these values are always boolean falses.

Simply use not quant and whatever value will be ok.

Upvotes: 1

Emipro Technologies Pvt. Ltd.
Emipro Technologies Pvt. Ltd.

Reputation: 14746

Just try simply,

<t t-if="not quant">
    <!-- your code -->
</t>

And suppose you want to check any other relational fields of that object then you should check like that,

<t t-if="not quant or not 'relational_field_name' in quant">
    <!-- your code -->
</t>

Upvotes: 1

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