forked from s442783/HighNeed_projekt_inz
61 lines
1.4 KiB
Python
61 lines
1.4 KiB
Python
from django.db.models import Transform
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from django.db.models.lookups import PostgresOperatorLookup
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from .search import SearchVector, SearchVectorExact, SearchVectorField
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class DataContains(PostgresOperatorLookup):
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lookup_name = 'contains'
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postgres_operator = '@>'
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class ContainedBy(PostgresOperatorLookup):
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lookup_name = 'contained_by'
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postgres_operator = '<@'
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class Overlap(PostgresOperatorLookup):
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lookup_name = 'overlap'
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postgres_operator = '&&'
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class HasKey(PostgresOperatorLookup):
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lookup_name = 'has_key'
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postgres_operator = '?'
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prepare_rhs = False
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class HasKeys(PostgresOperatorLookup):
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lookup_name = 'has_keys'
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postgres_operator = '?&'
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def get_prep_lookup(self):
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return [str(item) for item in self.rhs]
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class HasAnyKeys(HasKeys):
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lookup_name = 'has_any_keys'
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postgres_operator = '?|'
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class Unaccent(Transform):
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bilateral = True
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lookup_name = 'unaccent'
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function = 'UNACCENT'
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class SearchLookup(SearchVectorExact):
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lookup_name = 'search'
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def process_lhs(self, qn, connection):
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if not isinstance(self.lhs.output_field, SearchVectorField):
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config = getattr(self.rhs, 'config', None)
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self.lhs = SearchVector(self.lhs, config=config)
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lhs, lhs_params = super().process_lhs(qn, connection)
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return lhs, lhs_params
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class TrigramSimilar(PostgresOperatorLookup):
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lookup_name = 'trigram_similar'
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postgres_operator = '%%'
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