How to use key_on_joined_table method in autotest

Best Python code snippet using autotest_python Github


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...107 condition = '%s.%s IS NULL'108 else:109 condition = '%s.%s IS NOT NULL'110 condition %= (alias,111 queryset.model.objects.key_on_joined_table(related_query))112 queryset = queryset.model.objects.add_where(queryset, condition)113 return queryset114class _KeyvalConstraint(Constraint):115 def __init__(self, model, key_field, value_field, make_alias_fn):116 self._model = model117 self._key_field = key_field118 self._value_field = value_field119 self._make_alias_fn = make_alias_fn120 def apply_constraint(self, queryset, value, comparison_type, is_inverse):121 if comparison_type not in (None, 'equals'):122 raise ConstraintError('Can only use equals or not equals with '123 'this selector')124 if '=' not in value:125 raise ConstraintError('You must specify a key=value pair for this '126 'selector')127 key, actual_value = value.split('=', 1)128 related_query = self._model.objects.filter(129 **{self._key_field: key, self._value_field: actual_value})130 alias = self._make_alias_fn()131 queryset = queryset.model.objects.join_custom_field(queryset,132 related_query,133 alias)134 if is_inverse:135 condition = '%s.%s IS NULL'136 else:137 condition = '%s.%s IS NOT NULL'138 condition %= (alias,139 queryset.model.objects.key_on_joined_table(related_query))140 queryset = queryset.model.objects.add_where(queryset, condition)...

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