---
- name: Ensure PostgreSQL Python libraries are installed.
  apt: "name=python-psycopg2 state=installed"

- name: Ensure PostgreSQL packages are installed.
  apt: "name={{ item }} state=installed"
  with_items: "{{ postgresql_packages }}"

- name: Ensure all configured locales are present.
  locale_gen: "name={{ item }} state=present"
  with_items: "{{ postgresql_locales }}"
  register: locale_gen_result

- name: Force-restart PostgreSQL after new locales are generated.
  service:
    name: "{{ postgresql_daemon }}"
    state: restarted
  when: locale_gen_result.changed