How to recursively call a macro in jinja2?
code-generation, jinja2, python
Solution
You can use macros, write a macro for class rendering, and then call it recursively:
{% macro render_class(class) -%}
class {{ class.name }}
{
{% for field in class.fields %}
int {{ field }};
{% endfor %}
{% for subclass in class.subclasses %}
{{ render_class(subclass) }}
{% endfor %}
}
{%- endmacro %}
{% for class in classes %}
{{ render_class(class) }}
{% endfor %}
This works well, but doesn't deal with the proper indentation of subclasses, yielding code like this:
class Bar
{
int meow;
int bark;
class SubBar
{
int joe;
int pete;
}
}
Problem
This is my jinja template to generate C# code from my data model ``` using System; namespace {{ domain["ns"] }} { {% for class in domain["content"] %} public class {{ class["name"] }} { #region Inners {{ class["innerClass"] }} #endregion #region Props {% for field in class["content"] %} {% if field["readonly"] == "true" %} {% set readonly="private" %} {% else %} {% set readonly="" %} {% endif %} public {{ field["type"] }} {{ field["name"] }} {get; {{ readonly }} set{ if ({{ field["constraint"] }}){ {{ field["name"] }}=value; }else { throw new Exception("Inserted value for {{ field["name"] }} is not valid!"); } } } {% endfor %} #endregion } {% endfor %} } ``` this is my question , for generate inner classes, I want to recursively loop on my data model, How I can pass the class["innerClass"] as a parameter to my first for statement?