Creating Helper Function

Started by Muut Archive 11 years ago · 26 replies · 723 views

11 years ago

now the random function works just fine, there was a problem with my installation of GRAV !

TWIG


{{ random(config.brain.properties) }}
---

11 years ago

Oh well, still not finished... (base.html.twig)

HTML

{% import "macros/macros.html.twig" as m %}
<div class="flex-container" id="header">
  <div class="flex-box">
    {{ m.hour_based_greeting() }}
  </div>
</div>

und (macros/macros.html.twig)

TWIG

{% macro hour_based_greeting() %}
  {% set hour = "now"|date("G") %}
  {% if (hour < 7) %}
    Einen {{ random(config.brain.properties) }}en Morgen!
  {% elseif (hour < 12) %}
    Einen {{ random(config.brain.properties) }}en Morgen!
  {% elseif (hour < 16) %}
    Einen {{ random(config.brain.properties) }}en Nachmittag!
  {% elseif (hour < 22) %}
    Einen {{ random(config.brain.properties) }}en Abend!
  {% else %} 
    Einen {{ random(config.brain.properties) }}e Nacht!
  {% endif %}
{% endmacro %}

ERROR: Grav renders a random number ... like 2122154669 !!!! .... :(

Where is the mistake ?

11 years ago

Well, let me guess. You get as output something like "Einen 134561e Nacht!"? This is because hour is a string (obviously date returns a string). You have to cast it into a number. See my snippet above or

TWIG


{% set hour = "now"|date("G")|number_format %}
---

11 years ago

i'm sorry, this is not the solution to the problem .... :( still doesn't work !

11 years ago

Ok, there are more problems. First use config.brain.adjectives instead of config.brain.properties. Second pass the config variable to the macro, since a macro lives in its own scope.

Tested with the below snippet, which works:

TWIG


{% macro hour_based_greeting(config) %}
  {% set hour = "now"|date("G") %}
  {% if (hour < 7) %}
    Einen {{ random(config.brain.adjectives) }}en Morgen!
  {% elseif (hour < 12) %}
    Einen {{ random(config.brain.adjectives) }}en Morgen!
  {% elseif (hour < 16) %}
    Einen {{ random(config.brain.adjectives) }}en Nachmittag!
  {% elseif (hour < 22) %}
    Einen {{ random(config.brain.adjectives) }}en Abend!
  {% else %}
    Einen {{ random(config.brain.adjectives) }}e Nacht!
  {% endif %}
{% endmacro %}

{{ dump(_self.hour_based_greeting(config)) }}
--- 

*Output:*  Einen wohltuenden Abend!

11 years ago

Thanks. Now I've got it!

Passing in the config variable did it ! Thanks.

11 years ago

this is the resulting website (as far as i did it) ...

http://timomue.com

Have a look at the bottom line, it uses the macro we have developed. Try refreshing the browser and focus on the text. It changes !!!!

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