Split string into list in jinja

Question

I have some variables in a jinja2 template which are strings seperated by a       I need to use these strings separately in the code  i e  the variable is variable1    green blue      list1      variable1    split         The grass is    list1 0     and the boat is    list1 1       I can split them up before rendering the template but since it are sometimes up to 10 strings inside the string this gets messy   I had a jsp before where I did    lt   String   list1   val get  variable1   split        gt      The grass is  lt    list1 0    gt  and the boat is  lt    list1 1    gt    EDIT   It works with      set list1   variable1 split         The grass is    list1 0     and the boat is    list1 1

User · Accepted Answer

After coming back to my own question after 5 year and seeing so many people found this useful, a little update.

A string variable can be split into a list by using the split function (it can contain similar values, set is for the assignment) . I haven't found this function in the official documentation but it works similar to normal Python. The items can be called via an index, used in a loop or like Dave suggested if you know the values, it can set variables like a tuple.

{% set list1 = variable1.split(';') %}
The grass is {{ list1[0] }} and the boat is {{ list1[1] }}

or

{% set list1 = variable1.split(';') %}
{% for item in list1 %}
    <p>{{ item }}<p/>
{% endfor %}

or

{% set item1, item2 = variable1.split(';') %}
The grass is {{ item1 }} and the boat is {{ item2 }}

User · Answer

You can   t run arbitrary Python code in jinja  it doesn   t work like JSP in that regard  it just looks similar   All the things in jinja are custom syntax   For your purpose  it would make most sense to define a custom filter  so you could for example do the following   The grass is    variable1   splitpart 0          and the boat is     splitpart 1          Or just  The grass is    variable1   splitpart 0     and the boat is     splitpart 1       The filter function could then look like this   def splitpart  value  index  char             return value split char  index    An alternative  which might make even more sense  would be to split it in the controller and pass the splitted list to the view

User · Answer

If there are up to 10 strings then you should use a list in order to iterate through all values       set list1   variable1 split            for list in list1     lt p gt    list    lt  p gt     endfor

[python] Split string into list in jinja?

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