I have some objects like address1, address2, address3 ... address10. All these objects have lat and long values.
I know we can get it from the attribute() function of Twig, but what I want in my twig template is to get the main objects
{% for i in 1..10 %}
{% set address = address~i %}
{{ address.lat }}
// or like
{{ attribute(address, 'lat') }}
{% endfor %}
Just simply use :
{% for i in 1..10 %}
{{ attribute(attribute(_context, 'address'~i), 'lat') }}
{% endfor %}
Related
I would like to include the same variables in different templates
vars_catchphrase.twig
{% set catchphrase_size = '' %}
{% if var.tile_catchphrase|length <= 4 %}
{% set catchphrase_size = 'size-lg' %}
{% elseif var.tile_catchphrase|length >= 5 and var.tile_catchphrase|length <= 8 %}
{% set catchphrase_size = 'size-md' %}
{% elseif var.tile_catchphrase|length >= 9 and var.tile_catchphrase|length <= 12 %}
{% set catchphrase_size = 'size-sm' %}
{% elseif var.tile_catchphrase|length >= 13 %}
{% set catchphrase_size = 'size-xs' %}
{% endif %}
I tried to include with this (because the context is sometime different) :
{% include 'vars_catchphrase.twig' with { 'var' : post } %}
When the context is different from post I use another one :
{% include 'vars_catchphrase.twig' with { 'var' : item } %}
example.twig
{% for item in list %}
{% include 'vars_catchphrase.twig' with { 'var' : item } %}
<p class="catchphrase {{ catchphrase_size }}">{{ item.title }}</p>
{% endfor %}
The variable is empty. Can I have some help please ?
Templates you include have their own variable scope, this means variables defined inside this template will not be known out the template. This said, included templates also can't alter the parent's context (by default), this is due to twig passing the context array by value, not by reference.
foo.twig
{% set foo = 'foo' %}
{% include 'bar.twig' %}
{{ foo }}
bar.twig
{% set foo = 'bar' %}
The example above will still output foo
In order to solve your problem, I'd suggest adding a custom filter to twig
<?php
$twig->addFilter(new \Twig\TwigFilter('catchphrase_size', function($value) {
switch(true) {
case strlen($value->tile_catchphrase) >= 13: return 'size-xs';
case strlen($value->tile_catchphrase) >= 9: return 'size-sm';
case strlen($value->tile_catchphrase) >= 5: return 'size-md';
default: return 'size-lg';
}
});
This way you can use the filter where ever,
{% for item in list %}
<p class="catchphrase {{ item|catchphrase_size }}">{{ item.title }}</p>
{% endfor %}
I'm trying to check in twig if any element of one array are set in other array.
Example:
I have user.roles with ['ROLE_ADMIN','ROLE_MANAGER'] and I have the product.roles with ['ROLE_ADMIN','ROLE_USER'].
I want to check (in Twig) if any user.roles are in product.roles, like:
{{ user.roles[0] is product.roles|keys }}
But with each element of user.roles in the same function.
Does anyone know how?
You could use the filter filter to do this, but guessing it would be better to move this to PHP / TwigExtension
{% if user.roles |filter((role) => role in product.roles) | length > 0 %}
Can do something with the post
{% else %}
Access denied
{% endif %}
demo
Use a for loop:
{% for role in user.roles %}
{% if role in product.roles|keys %}
do something...
{% endif %}
{% endfor %}
One question please.
{{ dump(app.user.slugName) }}
If I do the above snippet in Twig, I get the slugName of the user loged ("my-user-2", i.e.) in the app (SlugName is an atribute of the entity user). Ok & Correct. But... I want to order this action from a var (var from BD data)
I have a variable named option which is set like this:
{% set option = 'app.user.slugName' %}
But when I'm trying output this variable with {{ dump(option)}} it returns app.user.slugName as literal. It does not return my-user-2.
Is there are any way in twig to solve this? It's a function to generate a menu, but some links needs some parameters.
I see what you mean, but Twig can't evaluate expression like that.
To achieve something like that you would need a snippet like this,
{% set value_methods = 'app.user.slugname' %}
{% set option_value = _context %}
{% for method in (value_methods|split('.')) if method != '' %}
{% set option_value = attribute(option_value, (method|replace({'()': '', }))) %}
{% endfor %}
{{ option_value }}
twigfiddle
(edit)
Remember you can create a macro to achieve some reusability for this snippet,
{% import _self as macros %}
{{ macros.evaluate(_context, 'app.user.slugname') }}
{% macro evaluate(context, value_methods) %}
{% set option_value = context %}
{% for method in (value_methods|split('.')) if method != '' %}
{% set option_value = attribute(option_value, (method|replace({'()': '', }))) %}
{% endfor %}
{{ option_value }}
{% endmacro %}
Im setting a "category" and passing it to a template that I'm including:
{% set categoryA = {
category: "categoryA",
}
%}
{% include "something.twig" with categoryA %}
{% set categoryB = {
category: "categoryB",
}
%}
{% include "something.twig" with categoryB %}
This is working fine but I'm repeating a lot of code which I want to avoid (in my actual code there are more than 2 categories).
Im trying to put the categories in an array and include something.twig for each one, passing a different category for each instance:
{% set categories = ['categoryA', 'categoryB', 'categoryC', 'categoryD', 'categoryE'] %}
{% for i in categories %}
<h3>{{ i }}</h3>
{% set categoryOption = {
category: {{ i }},
}
%}
{% include "something.twig" with categoryOption %}
{% endfor %}
The title in the h3 is printed OK however the categoryOption category is passed as [object Object] rather than the string name as I need
For example, you use category in the "something.twig":
...
{{ category|default }}
...
So you can use "include" like:
{% include "something.twig" with { category: 'Name of Category' } %}
Full code:
{% set categories = ['categoryA', 'categoryB', 'categoryC', 'categoryD', 'categoryE'] %}
{% for i in categories %}
<h3>{{ i }}</h3>
{% include "something.twig" with { category: i } %}
{% endfor %}
Is it possible to check if given variable is string in Twig ?
Expected solution:
messages.en.yml:
hello:
stranger: Hello stranger !
known: Hello %name% !
Twig template:
{% set title='hello.stranger' %}
{% set title=['hello.known',{'%name%' : 'hsz'}] %}
{% if title is string %}
{{ title|trans }}
{% else %}
{{ title[0]|trans(title[1]) }}
{% endif %}
Is it possible to do it this way ? Or maybe you have better solution ?
Can be done with the test iterable, added in twig1.7, as Wouter J stated in the comment :
{# evaluates to true if the users variable is iterable #}
{% if users is iterable %}
{% for user in users %}
Hello {{ user }}!
{% endfor %}
{% else %}
{# users is probably a string #}
Hello {{ users }}!
{% endif %}
Reference : iterable
Ok, I did it with:
{% if title[0] is not defined %}
{{ title|trans }}
{% else %}
{{ title[0]|trans(title[1]) }}
{% endif %}
Ugly, but works.
I found iterable to not be good enough since other objects can also be iterable, and are clearly different than an array.
Therefore adding a new Twig_SimpleTest to check if an item is_array is much more explicit. You can add this to your app configuration / after twig is bootstrapped.
$isArray= new Twig_SimpleTest('array', function ($value) {
return is_array($value);
});
$twig->addTest($isArray);
Usage becomes very clean:
{% if value is array %}
<!-- handle array -->
{% else %}
<!-- handle non-array -->
{% endif % }
There is no way to check it correctly using code from the box.
It's better to create custom TwigExtension and add custom check (or use code from OptionResolver).
So, as the result, for Twig 3, it will be smth like this
class CoreExtension extends AbstractExtension
{
public function getTests(): array
{
return [
new TwigTest('instanceof', [$this, 'instanceof']),
];
}
public function instanceof($value, string $type): bool
{
return ('null' === $type && null === $value)
|| (\function_exists($func = 'is_'.$type) && $func($value))
|| $value instanceof $type;
}
}
Assuming you know for a fact that a value is always either a string or an array:
{% if value is iterable and value is not string %}
...
{% else %}
...
{% endif %}
This worked good enough for me in a project I was working on. I realize you may need another solution.