29 lines
1.2 KiB
Python
29 lines
1.2 KiB
Python
from django.contrib import messages
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from django.core.urlresolvers import reverse
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from django.utils.encoding import force_text
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from django.utils.safestring import mark_safe
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from django.utils.translation import ugettext_lazy as _
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def validate_contact(request, bill, error=True):
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""" checks if all the preconditions for bill generation are met """
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msg = _('{relation} account "{account}" does not have a declared invoice contact. '
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'You should <a href="{url}#invoicecontact-group">provide one</a>')
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valid = True
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send = messages.error if error else messages.warning
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if not hasattr(bill.account, 'billcontact'):
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account = force_text(bill.account)
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url = reverse('admin:accounts_account_change', args=(bill.account_id,))
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message = msg.format(relation=_("Related"), account=account, url=url)
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send(request, mark_safe(message))
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valid = False
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main = type(bill).account.field.rel.to.get_main()
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if not hasattr(main, 'billcontact'):
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account = force_text(main)
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url = reverse('admin:accounts_account_change', args=(main.id,))
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message = msg.format(relation=_("Main"), account=account, url=url)
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send(request, mark_safe(message))
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valid = False
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return valid
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