files = [name for name in get_choices()]

    files.sort()

    year_choices = list({name.split('-')[0] for name in files})

    year_choices.sort()

    form.year.choices = [(name, name) for name in year_choices]

    if not year_choices:

        current_app.logger.warn('No donations found!')

        return render_template('donate/received.html',

                               form=form, csv_file=None,

    if request.method == 'POST':

        current_app.logger.debug('Validating form')

        if form.validate_on_submit():

            year = form.year.data

            month = form.month.data

            return redirect(url_for('donate.received', year=year, month=month))

    else:

        if 'year' in request.args and 'month' in request.args:

            year = request.args['year']

            month = request.args['month']

            form.year.data = year

            form.month.data = '{:02d}'.format(int(month))

            filename = '-'.join([year, month])

            if filename in files:

                current_app.logger.info('Showing date %s' % filename)

                csv_file = load_csv(filename)

            else:

                current_app.logger.warn('Date %s not found' % filename)

                return render_template('donate/received.html',

                                       form=form, csv_file=None,

        else:

            filename = files[-1]

            current_app.logger.info('Showing last date %s' % filename)

            year, month = filename.split('-')

            form.year.data = year

            form.month.data = '{:02d}'.format(int(month))

            csv_file = load_csv(filename)

        current_app.logger.info('Return result')

        return render_template('donate/received.html',

                               form=form, csv_file=csv_file,

{% macro colorize_numbers(number) %}

  {% if number.startswith('-') %}

    {% set color = "text-danger" %}

  {% else %}

    {% if not number.startswith('+') %}

      {% set number = ''.join(['+', number]) %}

    {% endif %}

    {% set color = "text-success" %}

  {% endif %}

  <span class="{{ color }}">{{ number }}</span>

{% endmacro %}

  <div class="table-responsive">

    <table class="table table-bordered table-striped">

      <thead>

        <tr>

          <th>#</th>

          <th>Date</th>

          <th>Statement</th>

          <th>Amount</th>

        </tr>

      </thead>

      <tbody>

        {% for row in csv_file %}

          <tr>

            <td>{{ loop.index }}</td>

            <td>{{ row[0] }}</td>

            <td>{{ row[1] }}</td>

            <td>{{ colorize_numbers(row[2]) }}</td>

          </tr>

        {% endfor %}

      </tbody>

    </table>

  </div>

{% endmacro %}

        <div class="form-group">

          {{ form.year.label }}

          {{ form.year(class_='form-control input-sm') }}

          {{ form.month.label }}

          {{ form.month(class_='form-control input-sm') }}

          {{ form.submit(class_='btn btn-enn btn-sm') }}

        </div>

      </form> 

    </div>

  </div>

  <div class="col-md-12">

    {% if csv_file %}

    {% else %}

      {% if year and month %}

        <p>No donations found for {{ '-'.join([year, month]) }}!</p>

      {% else %}

        <p>No donations found!</p>

      {% endif %}

    {% endif %}

  </div>

{% endblock %}