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I have a list of dictionaries called data. for every_archive in data I want to acces every_archive['key1']['key2']

First key it's a constant: "units" but the second key depends on a loop.

I have already tried : {{ archive['units'][{{item['param']}}] }}

where item['param'] item is another iterator in a loop and item['param'] is the second key.

yatu
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Safta Daniel
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  • Possible duplicate of [How to iterate through a list of dictionaries in jinja template?](https://stackoverflow.com/questions/25373154/how-to-iterate-through-a-list-of-dictionaries-in-jinja-template) – jdpy19 Sep 06 '19 at 13:17

2 Answers2

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See the format below! The structure is going to be very similar to how you would loop through a dictionary in Python, but with the jinja {% %} for each statement you do not want to display and {{ }} around each expression you want to display.

Taken from How to iterate through a list of dictionaries in jinja template?

Data: parent_dict = [{'A':{'a':1}},{'B':{'b':2}},{'C':{'c':3}},{'D':{'d':4}}]

In Jinja2 iteration:
{% for dict_item in parent_dict %}
   {% for key1 in dict_item %}
      {% for key2 in dict_item[key1] %}
        <h2>Value: {{dict_item[key1][key2]}}</h2>
      {% endfor %}
   {% endfor %}
{% endfor %}
jdpy19
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  • Yes, this works fine but my ```key2``` is not a string, is the value of ```item['param']``` – Safta Daniel Sep 09 '19 at 05:26
  • I am not sure, I am understanding your data structure. Can you provide an example? – jdpy19 Sep 09 '19 at 14:39
  • so I receive in HTML the variable ```data``` which contains ```item``` which is a dictionary and I also receive ```details``` which is also a dictionary. Then I have ```{ % for elem in data['item'] %}

    {{ details['units'][ elem['param'] ] }}

    ```. The thing is that ```elem['param']``` is in for and I need to use it as the second key for ```details```.     – Safta Daniel Sep 10 '19 at 07:10
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As far as I understood, you have a list that contains some nested dictionaries; if that's the case, and your data looks like that:

data = [{'foo': {'bar1': 'buzz1', 'bar2': 'buzz2'}}, {'foo': {'bar3': 'buzz3', 'bar4': 'buzz4'}}]

if you use this Jinja2:

    {% for every_archive in data %} 
        {% for key1, archive1 in every_archive.items() %}
          {% for key2, value2 in archive1.items() %}
            <p>{{ key1 }} - {{ key2 }} - {{ value2 }}</p>
          {% endfor %}
        {% endfor %}
    {% endfor %}

you will get this output:

foo - bar1 - buzz1

foo - bar2 - buzz2

foo - bar3 - buzz3

foo - bar4 - buzz4

also, the same output you will get from 

<p>{{ key1 }} - {{ key2 }} - {{ archive1[key2] }}</p>
Razvan Cristea
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