group table permissions product groups actions

image.png

index.html

{% extends "base.html" %}

{% block content %}

<table class="table">
  <thead>
    <tr>
      <th></th>
      {% for action in actions %}
        <th>{{ action }}</th>
      {% endfor %}
    </tr>
  </thead>
  <tbody>
    {% for group in groups %}
      <tr>
        <td>{{ group }}</td>
        {% for action in actions %}
          <td>{{ group }}, {{ action }}</td>
        {% endfor %}
      </tr>
    {% endfor %}
  </tbody>
</table>

<table class="table">
  <thead>
    <tr>
      <th></th>
      {% for action in actions %}
      <th>{{ action }}</th>
      {% endfor %}
    </tr>
  </thead>
  <tbody>
    {% for permission in permissions %}
    <tr>
      <td>{{ permission.0 }}</td>
      <td>{{ permission.1.0 }}</td>
      <td>{{ permission.1.1 }}</td>
      <td>{{ permission.1.2 }}</td>
      <td>{{ permission.1.3 }}</td>
    </tr>
    {% endfor %}
  </tbody>
</table>


  {% endblock content %}

views.py

from itertools import groupby, product
from operator import itemgetter

def index(request):
    template_name = 'index.html'

    groups = ('gerente', 'vendedor', 'comprador')
    actions = ('C', 'R', 'U', 'D')

    context = {
        'groups': groups,
        'actions': actions,
    }

    return render(request, template_name, context)


def index(request):
    # Segundo exemplo, usando groupby
    template_name = 'index.html'

    groups = ('gerente', 'vendedor', 'comprador')
    actions = ('C', 'R', 'U', 'D')

    products = list(product(groups, actions))

    products.sort(key=itemgetter(0))

    permissions = []

    for key, group in groupby(products, itemgetter(0)):
        permissions.append((key, list(group)))

    context = {
        'groups': groups,
        'actions': actions,
        'permissions': permissions,
    }

    return render(request, template_name, context)