I am stuck in a simple problem but not able to figure it. I am not sure if this is the right place to ask the question on a package in Rust.
Most of the time, in the template, we will want to transform our data. For example, I wanted to concat n arrays in one line. I can use ~ operator only if I know the number of arrays.
Below is the requirement I am looking for,
{% macro generate_table(table) %}
{% for rows in 0..table.length %}
{{ table[table.col_header[0]][row] ~ " || " ~ [table.col_header[1]][row] }}
{% endfor %}
{% endmacro input %}
I want to do.
{% macro generate_table(table) %}
{% for rows in 0..table.rlength %}
{% for cols in 0..table.clength %}
{{ arr.insert(table[table.col_header[cols]][row]) }}
{% endfor %}
{{ arr | join(sep=" || ") }}
{% endfor %}
{% endmacro input %}
I figured it out. Using concat(with="")
{% macro generate_table(table) -%}
{% for row in [0,1,2] -%}
{% set_global row_val = [] -%}
{% for cols in [0,1,2] -%}
{% set_global row_val = row_val | concat(with= table.col_values[table.col_header[cols]][row]) -%}
{% endfor -%}
{{ row_val | join(sep=" ") }}
{% endfor -%}
{% endmacro generate_table -%}
Related
I'm trying to use the "AND" operator in TWIG in Opencart 3 and it doesn't work. Please tell me what I'm doing wrong.
I have some product attributes. And I want to make a condition that if two of the attribute with a specific ID are there, then the condition is met.
{% for attribute_group in attribute_groups %}
{% for attribute in attribute_group.attribute %}
{% if attribute.attribute_id == 2 and attribute.attribute_id == 3 %}
First condition
{% elseif attribute.attribute_id == 2 %}
Second condition
{% elseif attribute.attribute_id == 3 %}
Third condition
{% else %}
{% endif %}
{% endfor %}
{% endfor %
Here is text example:
if there is an attribute with ID equal 2 and an attribute with ID equal 3 then write "Floor/Number of floors".
if there is an attribute with ID equal 2 only then write "Floor"
if there is an attribute with ID equal 3 only then write "Numbers of floors".
Something can't be both X and Y at the same time. Furthermore this is something I'd advice you to test in the controller and not in the view.
Anyway if you wanted to do this in the view you will need to track of the found attributes. You could do this with two booleans or just add a counter.
{% set cnt = 0 %}
{% for attribute_group in attribute_groups %}
{% for attribute in attribute_group.attribute %}
{% if attribute.attribute_id == 2 or attribute.attribute_id == 3 %}
{% set cnt = cnt + 1 %}
{% endif %}
{% endfor %}
{% endfor %}
{% if cnt == 2 %}
{# do something #}
{% endif %}
You can simplify the if by using the test in
{% if attribute.attribute_id in [2, 3,] %}
Update of my answer because OP changed the requirements of the question
{% set words = [] %}
{% for attribute_group in attribute_groups %}
{% for attribute in attribute_group.attribute %}
{% if attribute.attribute_id == 2 %}
{% set words = words|merge(['Floor',]) %}
{% elseif attribute.attribute_id == 3 %}
{% set words = words|merge(['Numbers of floors',]) %}
{% endif %}
{% endfor %}
{% endfor %}
{% if words|default %}
{{ words|join('/') }}
{% endif %}
demo
This is a refactoring question. The code works as is, I'm just not happy with it in an aesthetical sense.
I would like to know if the conditional inside the loop can be written in a shorter, more readable way or maybe can be stripped away?
{% set i = 0 %}
{% for element in list %}
{% if loop.first %}<div class="row">{% endif %} {# open first row #}
{% if i > 2 %} {# new row every 3 elements #}
{% set i = 0 %}
</div>
<div class="row">
<img src="{{ element.url }}">
{% else %}
{% set i = i+1 %}
<img src="{{ element.url }}">
{% endif %}
{% if loop.last %}</div>{% endif %}
{% endfor %}
As user DarkBee said, have a look into batch.
{% for element in list|batch(3) %}
.....
.....
{% endfor %}
Just to have an example on this page.
Batch-Docs
Regards
I've racked my brain in all directions but still no solution. Maybe someone has some advice?
I have the following block in an ExpressJS app using Nunjucks as the templating engine.
{%- for course in courses -%}
{%- for rcourse in report.courses -%}
{%- if rcourse.id == course.id -%}
<li {{ 'class="column-pre"' if loop.last else ''}}><span>Cool!</span></li>
{%- else -%}
<li></li>
{%- endif -%}
{%- endfor -%}
{%- endfor -%}
My problem: I need to break the inner report.courses loop when the conditional proves truth-y. Basically, the moment that I print the non-empty <li> line, I need to jump to the next iteration of the courses loop.
I know that Nunjucks does't have a break for loops like Jinja2, Nunjucks' variables are scoped (so I can't set a sentinel-like variable that gets modified in the if/else statement), nor can I append to an array so that I can use array.length as a way to determine if I should print the <li></li> line.
Maybe someone has a clever solution?
I think the sentinel-like variable would not be affected by scoping:
{% for course in courses %}
{% set searchrcourse = true %}
{% for rcourse in report.courses %}
{% if searchrcourse %}
{% if rcourse.id == course.id %}
<li {{ 'class="column-pre"' if loop.last else ''}}><span>Cool!</span></li>
{% set searchrcourse = false %}
{% else %}
<li></li>
{% endif %}
{% endif %}
{% endfor %}
{% endfor %}
I want to render blocks of HTML in alternate orientations. Is this the correct syntax in order to get the current value of cycle?
{% if ( {{ cycle(['odd', 'even']) }} == 'odd' ) %}
foo
{% elseif %}
bar
{% endif %}
cycle(['odd', 'even']) should not be inside {{ }} in the if
statement
cycle() should have a second parameter given that counts the amount of loops
the {% elseif %} should either have a condition or be changed to {% else %}
This is what you should do to get the code to work as you want it to (loop 10 times):
{% for i in 0..9 %}
{% if cycle(['odd', 'even'], i) == 'odd' %}
foo
{% else %}
bar
{% endif %}
{% endfor %}
If you want the for to loop objects you can use loop.index (starts at 1) instead of i:
{% for object in objects %}
{% if cycle(['even', 'odd'], loop.index) == 'odd' %}
foo
{% else %}
bar
{% endif %}
{% endfor %}
or loop.index0 (starts at 0):
{% for object in objects %}
{% if cycle(['odd', 'even'], loop.index0) == 'odd' %}
foo
{% else %}
bar
{% endif %}
{% endfor %}
I am using Twig as templating engine and I am really loving it. However, now I have run in a situation which definitely mustbe accomplishable in a simpler way than I have found.
What I have right now is this:
{% for myVar in someArray %}
{% set found = 0 %}
{% for id, data in someOtherArray %}
{% if id == myVar %}
{{ myVar }} exists within someOtherArray.
{% set found = 1 %}
{% endif %}
{% endfor %}
{% if found == 0 %}
{{ myVar }} doesn't exist within someOtherArray.
{% endif %}
{% endfor %}
What I am looking for is something more like this:
{% for myVar in someArray %}
{% if myVar is in_array(array_keys(someOtherArray)) %}
{{ myVar }} exists within someOtherArray.
{% else %}
{{ myVar }} doesn't exist within someOtherArray.
{% endif %}
{% endfor %}
Is there a way to accomplish this which I haven't seen yet?
If I need to create my own extension, how can I access myVar within the test function?
Thanks for your help!
You just have to change the second line of your second code-block from
{% if myVar is in_array(array_keys(someOtherArray)) %}
to
{% if myVar in someOtherArray|keys %}
in is the containment-operator and keys a filter that returns an arrays keys.
Just to clear some things up here. The answer that was accepted does not do the same as PHP in_array.
To do the same as PHP in_array use following expression:
{% if myVar in myArray %}
If you want to negate this you should use this:
{% if myVar not in myArray %}
Try this
{% if var in ['foo', 'bar', 'beer'] %}
...
{% endif %}
another example following #jake stayman:
{% for key, item in row.divs %}
{% if (key not in [1,2,9]) %} // eliminate element 1,2,9
<li>{{ item }}</li>
{% endif %}
{% endfor %}
Though The above answers are right, I found something more user-friendly approach while using ternary operator.
{{ attachment in item['Attachments'][0] ? 'y' : 'n' }}
If someone need to work through foreach then,
{% for attachment in attachments %}
{{ attachment in item['Attachments'][0] ? 'y' : 'n' }}
{% endfor %}
It should help you.
{% for user in users if user.active and user.id not 1 %}
{{ user.name }}
{% endfor %}
More info: http://twig.sensiolabs.org/doc/tags/for.html
Here's one to complete the answers with all the possibilities of Twig these days:
To achieve something like this:
{% for myVar in someArray %}
{% if myVar in someOtherArray|keys %}
{{ myVar }} exists within someOtherArray.
{% else %}
{{ myVar }} doesn't exist within someOtherArray.
{% endif %}
{% endfor %}
(https://twigfiddle.com/0b5crp)
You could also use array mapping and have the following one-liner:
(Twig >= 1.41 or >= 2.10 or any 3.x version)
{{ someArray|map(myVar => myVar ~ (myVar not in someOtherArray|keys ? ' doesn\'t') ~ ' exists within someOtherArray.')|join('\n') }}
Which outputs something quite similar.
Also see this Twig fiddle: https://twigfiddle.com/dlxj9g
{% if myVar in myArray %} without keys helps me