CODEWITHSUNDEEP
pythondictionaryjinja2
Joana Rosado Coelho
Joana Rosado Coelho

Reputation: 11

Comma separating a list of dictionaries using jinja

I am trying to add a comma (using jinja) between a list of items which are in an array of dictionaries in python.

I am doing the following:

@{@ for row in data.results -@}@
@{{@ row.gene|join(',', attribute='gene')@}}@
@{@ endfor @}@}

However, each gene belongs to a dictionary in an array of dictionaries in python, such as

'results': [
         {'aminoacidic': u'p.Leu110Val',
          'criterium': u'1000',
          'ensembl': u'rs2301149',
          'gene': u'KCNMB1',
          'hgmd': u'CM078442',
          'nucleotidic': u'c.328C>G'},
         {'aminoacidic': None,
          'criterium': u'1000',
          'ensembl': u'rs13306673',
          'gene': u'SLC12A3',
          'hgmd': None,
          'nucleotidic': u'c.283-54T>C'},
          {'aminoacidic': None,
          'criterium': u'3000',
          'ensembl': u'rs72811418',
          'gene': u'CYBA',
          'hgmd': u'CR073543',
          'nucleotidic': u'c.*-675A>T'}
         ]

I would like to have the following output: 

         blabla in the gene list KCNMB1, SLC12A3, and CYBA.

How can I properly add the attribute for an integer.gene in jinja so that I have the genes separated by commas? Is there any easy way to put the "and" word before the last gene?

Upvotes: 0

Views: 1216

Answers (1)

Chris Clarke
Chris Clarke

Reputation: 2191

You can use the loop variables:

{% for result in results %}
  {% if not loop.last %}{{ result.gene }}, {% else %}and {{ result.gene }}.{% endif %}
{% endfor %}

Alternatively, patch together 2 joins:

{{ (results[:results|length-1]|join(", ",attribute="gene"), (results|last).gene | join("and ") }}

In this case, we take results without the last item and join it all together with commas (results[:results|length-1]|join(", ",attribute="gene")) then join that with the last item.

Upvotes: 2

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