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This page includes some examples of Jinja2 code that might be useful for report templates. We will expand this page with simple and advanced examples based on community feedback. The code may or may not be ready to be dropped into a Word document. The examples may contain indents, newlines, placeholders, and comments to improve readability. You may wish to remove some of these elements before using the examples in your templates.

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Set a Unique ID for Each Finding

This example sets up ID values for each severity category, loops over each finding, and sets a unique ID value based on the finding’s severity. Jinja2 does not support indexing in the destination of a setblock, so this particular use case requires some additional code. The code uses a namespace to track separate ID values for each severity category. As it loops over each finding, it increments the ID value by one for its severity and creates a finding ID string. The string is the finding’s first tag, the first character of the severity, and the number value (e.g., TAG-C-1for the first critical finding). You can customize this example to change the ID string or start ID values at zero instead of one. 
{% set ns = namespace(crit_id=0, high_id=0, med_id=0, low_id=0, info_id=0, finding_tag=0) %}
{% for f in findings %}
    {% if f.severity == 'Critical' %}
        {% set ns.crit_id = ns.crit_id + 1 %}
        {% set ns.finding_tag = ns.crit_id %}
    {% endif %}
    {% if f.severity == 'High' %}
        {% set ns.high_id = ns.high_id + 1 %}
        {% set ns.finding_tag = ns.high_id %}
    {% endif %}
    {% if f.severity == 'Medium' %}
        {% set ns.med_id = ns.med_id + 1 %}
        {% set ns.finding_tag = ns.med_id %}
    {% endif %}
    {% if f.severity == 'Low' %}
        {% set ns.low_id = ns.low_id + 1 %}
        {% set ns.finding_tag = ns.low_id %}
    {% endif %}
    {% if f.severity == 'Info' %}
        {% set ns.info_id = ns.info_id + 1 %}
        {% set ns.finding_tag = ns.info_id %}
    {% endif %}
    {% set tag = tags|first() %}
    {% set sev = f.severity|first() %}
    {% set finding_id = "%s-%s-%s" % (tag,sev,ns.finding_tag) %}
    {{ finding_id }}
{% endfor %}