Filter data from list of dicts using condition in Jinja2 filter

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.

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

add a comment |

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.

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

add a comment |

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.

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

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

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

edited Nov 20 '18 at 11:23

Kanwar Saad

1,00811222

asked Nov 20 '18 at 7:11

Stelios

3031317

asked Nov 20 '18 at 7:11

Stelios

3031317

asked Nov 20 '18 at 7:11

Stelios

3031317

add a comment |

2 Answers
2

active

oldest

votes

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

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

add a comment |

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

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

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

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

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

add a comment |

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

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

add a comment |

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

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

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

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

answered Nov 20 '18 at 10:25

Kanwar Saad

1,00811222

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

add a comment |

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

Thank you for presenting all the variations. Much appreciated.

– Stelios
Nov 20 '18 at 14:15

add a comment |

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

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

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

add a comment |

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

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

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

add a comment |

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

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

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

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

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

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

edited Nov 20 '18 at 11:04

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

answered Nov 20 '18 at 10:28

Domingo Tamayo

12612

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

add a comment |

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

Thanks for the help. It works perfectly.

– Stelios
Nov 20 '18 at 14:16

add a comment |

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