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from crispy_forms_foundation.layout import Column, Fieldset, Row
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from django.utils.translation import ugettext_lazy as _
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def to_column(name_span):
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fieldname, span = name_span
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return Column(fieldname, css_class='large-%d' % span)
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def to_row(names_spans):
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return Row(*list(map(to_column, names_spans)))
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def to_fieldsets(fields):
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for field in fields:
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if isinstance(field, list):
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legend, *row_specs = field
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rows = [to_row(name_span_list) for name_span_list in row_specs]
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yield Fieldset(legend, *rows)
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else:
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yield field
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def make_choices(*choice_pairs):
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assert len(choice_pairs) % 2 == 0
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ipairs = iter(choice_pairs)
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choices = list(zip(ipairs, ipairs))
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yield choices
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for key, value in choices:
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yield key
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YES_NO_CHOICES = [(True, _('Sim')), (False, _('Não'))]
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def int_to_roman(int_value):
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# if isinstance(int_value, type(1)):
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# raise TypeError("expected integer, got %s" % type(int_value))
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if not 0 < int_value < 4000:
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raise ValueError("Argument must be between 1 and 3999")
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ints = (1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1)
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nums = ('M', 'CM', 'D', 'CD', 'C', 'XC',
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'L', 'XL', 'X', 'IX', 'V', 'IV', 'I')
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result = ""
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for i in range(len(ints)):
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count = int(int_value / ints[i])
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result += nums[i] * count
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int_value -= ints[i] * count
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return result
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def int_to_letter(int_value):
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result = ''
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int_value -= 1
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while int_value >= 26:
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rest = int_value % 26
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int_value = int(int_value / 26) - 1
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result = chr(rest + 65) + result
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result = chr(int_value + 65) + result
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return result
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def from_to(start, end):
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return list(range(start, end + 1))
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def make_pagination(index, num_pages):
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'''Make a list of adjacent page ranges interspersed with "None"s
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The list starts with [1, 2] and end with [num_pages-1, num_pages].
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The list includes [index-1, index, index+1]
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"None"s separate those ranges and mean ellipsis (...)
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Example: [1, 2, None, 10, 11, 12, None, 29, 30]
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'''
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PAGINATION_LENGTH = 10
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if num_pages <= PAGINATION_LENGTH:
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return from_to(1, num_pages)
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else:
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if index - 1 <= 5:
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tail = [num_pages - 1, num_pages]
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head = from_to(1, PAGINATION_LENGTH - 3)
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else:
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if index + 1 >= num_pages - 3:
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tail = from_to(index - 1, num_pages)
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else:
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tail = [index - 1, index, index + 1,
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None, num_pages - 1, num_pages]
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head = from_to(1, PAGINATION_LENGTH - len(tail) - 1)
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return head + [None] + tail
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