django-orchestra/orchestra/contrib/domains/helpers.py

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import copy
from .models import Domain, Record
def domain_for_validation(instance, records):
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"""
Since the new data is not yet on the database, we update it on the fly,
so when validation calls render_zone() it will use the new provided data
"""
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domain = copy.copy(instance)
def get_records():
for data in records:
yield Record(type=data['type'], value=data['value'])
domain.get_records = get_records
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if not domain.pk:
# top domain lookup for new domains
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domain.top = domain.get_parent(top=True)
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if domain.top:
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# is a subdomain
subdomains = [sub for sub in domain.top.subdomains.all() if sub.pk != domain.pk]
domain.top.get_subdomains = lambda: subdomains + [domain]
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elif not domain.pk:
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# is a new top domain
subdomains = []
for subdomain in Domain.objects.filter(name__endswith='.%s' % domain.name):
subdomain.top = domain
subdomains.append(subdomain)
domain.get_subdomains = lambda: subdomains
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return domain