Disable a button based on CONDITION in Odoo?

问题

How can i add disabled class with attributes to field based on CONDITION?

I tried as below methods,

1)

<t t-if="product.qty_available &lt;= 0">
    <attribute name="class">btn btn-primary btn-lg mt8 js_check_product a-submit disabled</attribute>
</t>

---

2)

<attribute name="class" t-if="product.qty_available &gt; 0">btn btn-primary btn-lg mt8 js_check_product a-submit disabled</attribute>

---

3)

<attribute name="class" >product.qty_available &gt; 0 and 'btn btn-primary btn-lg mt8 js_check_product a-submit' or 'btn btn-primary btn-lg mt8 js_check_product a-submit disabled'</attribute>

---

Can some one helping me to achieve this?

回答1:

try this one:

<attribute name="t-att-disabled" > "1 if product.qty_available else 0" </attribute>

回答2:

Did with position="replace"

<xpath expr="//a[@id='add_to_cart']" position="replace">
      <a id="add_to_cart" t-attf-class="btn btn-primary btn-lg mt8 js_check_product a-submit #{product.qty_available &lt;= 0 and 'disabled'}" href="#" >Add to Cart</a>
  </xpath> 

来源：https://stackoverflow.com/questions/37477673/disable-a-button-based-on-condition-in-odoo