In your Canvas templates you can also assign values to variables. Assignments use the set
tag and can have multiple targets. Here is how you can assign the bar
value to the foo
variable:
{% set foo = 'bar' %}
After the set
call, the foo
variable is avilable in the template like any other variables:
{{ foo }} {# Returns: bar #}
The assigned value can be any valid expression:
{% set foo = [1, 2] %} {% set foo = { 'foo': 'bar' } %} {% set foo = 'foo' ~ 'bar' %}
Serveral variables can also be assigned in one block:
{% set foo, bar = 'foo', 'bar' %} {# is equivalent to #} {% set foo = 'foo' %} {% set bar = 'bar' %}
Note that loops are scoped, therefore a variable declared inside a for loop is not accessible outside the loop itself:
{% for item in list %} {% set foo = item %} {% endfor %} {# foo is NOT available #}
If you want to access the variable, just declare it before the loop:
{% set foo = '' %} {% for item in list %} {% set foo = item %} {% endfor %} {# foo is available #}