Filter data from list of dicts using condition in Jinja2 filter












0














data:

  - { name: foo, app: foo, isweb: true }

  - { name: bar, app: bar, isweb: true }

  - { name: foobar, app: foobar, isweb: false }

  - { name: baz, app: baz, isweb: false }


Desired result is list as:



{% set  list=  %}

{% for item in data %}

{% if item.isweb == true %}

{{list.append(item.app)}}

{% endif %}

{% endfor %}


Can this be implemented using filters :



{{ data | map(attribute='app') | list | join(' ') }}


Basically the question is how to implement the above for loop using a single line filter (as above) but only get data which have a value of isweb true.






ansible jinja2







share|improve this question





























    0














    data:
    
  - { name: foo, app: foo, isweb: true }
    
  - { name: bar, app: bar, isweb: true }
    
  - { name: foobar, app: foobar, isweb: false }
    
  - { name: baz, app: baz, isweb: false }


    Desired result is list as:



    {% set  list=  %}
    
{% for item in data %}
    
{% if item.isweb == true %}
    
{{list.append(item.app)}}
    
{% endif %}
    
{% endfor %}


    Can this be implemented using filters :



    {{ data | map(attribute='app') | list | join(' ') }}


    Basically the question is how to implement the above for loop using a single line filter (as above) but only get data which have a value of isweb true.






    ansible jinja2







    share|improve this question



























      0












      0








      0







      data:
      
  - { name: foo, app: foo, isweb: true }
      
  - { name: bar, app: bar, isweb: true }
      
  - { name: foobar, app: foobar, isweb: false }
      
  - { name: baz, app: baz, isweb: false }


      Desired result is list as:



      {% set  list=  %}
      
{% for item in data %}
      
{% if item.isweb == true %}
      
{{list.append(item.app)}}
      
{% endif %}
      
{% endfor %}


      Can this be implemented using filters :



      {{ data | map(attribute='app') | list | join(' ') }}


      Basically the question is how to implement the above for loop using a single line filter (as above) but only get data which have a value of isweb true.






      ansible jinja2







      share|improve this question















      data:
      
  - { name: foo, app: foo, isweb: true }
      
  - { name: bar, app: bar, isweb: true }
      
  - { name: foobar, app: foobar, isweb: false }
      
  - { name: baz, app: baz, isweb: false }


      Desired result is list as:



      {% set  list=  %}
      
{% for item in data %}
      
{% if item.isweb == true %}
      
{{list.append(item.app)}}
      
{% endif %}
      
{% endfor %}


      Can this be implemented using filters :



      {{ data | map(attribute='app') | list | join(' ') }}


      Basically the question is how to implement the above for loop using a single line filter (as above) but only get data which have a value of isweb true.






      ansible jinja2




      ansible jinja2






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 20 at 11:23









      Kanwar Saad

      99811122




      99811122










      asked Nov 20 at 7:11









      Stelios

      3031317




      3031317
























          2 Answers
          2






          active

          oldest

          votes


















          1














          There can be several ways to do this (working with ansible 2.7. Not sure about lower versions):



          Pure Filter way(using selectattr and map):



          - set_fact: app_list="{{ data | selectattr("isweb", "equalto", true) | map(attribute='app') | list }}"


          Using ansible loop with condition in filter:



          - set_fact: app_list="{{ (app_list | default()) + ([ item.app ] if (item.isweb == True) else ) }}"
          
  loop: "{{ data }}"


          Using Ansible loop with when statement:



          - set_fact: app_list="{{ (app_list | default()) + [ item.app ] }}"
          
  loop: "{{ data }}"
          
  when: item.app is defined and item.app == true





          share|improve this answer





















          • Thank you for presenting all the variations. Much appreciated.
            – Stelios
            Nov 20 at 14:15



















          1














          You're very close to solving it, just need to add another filter:



          {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }}





          share|improve this answer























          • Thanks for the help. It works perfectly.
            – Stelios
            Nov 20 at 14:16











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          2 Answers
          2






          active

          oldest

          votes








          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          There can be several ways to do this (working with ansible 2.7. Not sure about lower versions):



          Pure Filter way(using selectattr and map):



          - set_fact: app_list="{{ data | selectattr("isweb", "equalto", true) | map(attribute='app') | list }}"


          Using ansible loop with condition in filter:



          - set_fact: app_list="{{ (app_list | default()) + ([ item.app ] if (item.isweb == True) else ) }}"
          
  loop: "{{ data }}"


          Using Ansible loop with when statement:



          - set_fact: app_list="{{ (app_list | default()) + [ item.app ] }}"
          
  loop: "{{ data }}"
          
  when: item.app is defined and item.app == true





          share|improve this answer





















          • Thank you for presenting all the variations. Much appreciated.
            – Stelios
            Nov 20 at 14:15
















          1














          There can be several ways to do this (working with ansible 2.7. Not sure about lower versions):



          Pure Filter way(using selectattr and map):



          - set_fact: app_list="{{ data | selectattr("isweb", "equalto", true) | map(attribute='app') | list }}"


          Using ansible loop with condition in filter:



          - set_fact: app_list="{{ (app_list | default()) + ([ item.app ] if (item.isweb == True) else ) }}"
          
  loop: "{{ data }}"


          Using Ansible loop with when statement:



          - set_fact: app_list="{{ (app_list | default()) + [ item.app ] }}"
          
  loop: "{{ data }}"
          
  when: item.app is defined and item.app == true





          share|improve this answer





















          • Thank you for presenting all the variations. Much appreciated.
            – Stelios
            Nov 20 at 14:15














          1












          1








          1






          There can be several ways to do this (working with ansible 2.7. Not sure about lower versions):



          Pure Filter way(using selectattr and map):



          - set_fact: app_list="{{ data | selectattr("isweb", "equalto", true) | map(attribute='app') | list }}"


          Using ansible loop with condition in filter:



          - set_fact: app_list="{{ (app_list | default()) + ([ item.app ] if (item.isweb == True) else ) }}"
          
  loop: "{{ data }}"


          Using Ansible loop with when statement:



          - set_fact: app_list="{{ (app_list | default()) + [ item.app ] }}"
          
  loop: "{{ data }}"
          
  when: item.app is defined and item.app == true





          share|improve this answer












          There can be several ways to do this (working with ansible 2.7. Not sure about lower versions):



          Pure Filter way(using selectattr and map):



          - set_fact: app_list="{{ data | selectattr("isweb", "equalto", true) | map(attribute='app') | list }}"


          Using ansible loop with condition in filter:



          - set_fact: app_list="{{ (app_list | default()) + ([ item.app ] if (item.isweb == True) else ) }}"
          
  loop: "{{ data }}"


          Using Ansible loop with when statement:



          - set_fact: app_list="{{ (app_list | default()) + [ item.app ] }}"
          
  loop: "{{ data }}"
          
  when: item.app is defined and item.app == true






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 20 at 10:25









          Kanwar Saad

          99811122




          99811122












          • Thank you for presenting all the variations. Much appreciated.
            – Stelios
            Nov 20 at 14:15


















          • Thank you for presenting all the variations. Much appreciated.
            – Stelios
            Nov 20 at 14:15
















          Thank you for presenting all the variations. Much appreciated.
          – Stelios
          Nov 20 at 14:15




          Thank you for presenting all the variations. Much appreciated.
          – Stelios
          Nov 20 at 14:15













          1














          You're very close to solving it, just need to add another filter:



          {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }}





          share|improve this answer























          • Thanks for the help. It works perfectly.
            – Stelios
            Nov 20 at 14:16
















          1














          You're very close to solving it, just need to add another filter:



          {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }}





          share|improve this answer























          • Thanks for the help. It works perfectly.
            – Stelios
            Nov 20 at 14:16














          1












          1








          1






          You're very close to solving it, just need to add another filter:



          {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }}





          share|improve this answer














          You're very close to solving it, just need to add another filter:



          {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }}






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 20 at 11:04

























          answered Nov 20 at 10:28









          Domingo Tamayo

          12612




          12612












          • Thanks for the help. It works perfectly.
            – Stelios
            Nov 20 at 14:16


















          • Thanks for the help. It works perfectly.
            – Stelios
            Nov 20 at 14:16
















          Thanks for the help. It works perfectly.
          – Stelios
          Nov 20 at 14:16




          Thanks for the help. It works perfectly.
          – Stelios
          Nov 20 at 14:16


















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