def _build_sub_query(self, search_node):
"""Returns a string with query terms
search_mode: is a SearchNode tree data structure
Traverses 'search_node' to find each term, i.e.:
(AND: (AND: ('text', 'Robert'), ('text', 'Smith')))
that will be 'flattened' into: 'Robert Smith'
"""
term_list = []
# When traversing children If child is a node call recursively
# else ensure value is a haystack object implementing '.prepare()'
for child in search_node.children:
if isinstance(child, SearchNode):
term_list.append(self._build_sub_query(child))
else:
value = child[1]
# ensure value implements '.prepare()'
if not hasattr(value, 'input_type_name'):
if isinstance(value, six.string_types):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
# in case is binary(?) data
value = PythonData(value)
# or else child[1] is of class InputType
term_list.append(value.prepare(self))
# make string from list, ensure encoding support
return (' ').join(map(six.text_type, term_list))
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ''
is_datetime = False
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, 'values_list'):
value = list(value)
if hasattr(value, 'strftime'):
is_datetime = True
if isinstance(value, six.string_types) and value != ' ':
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == 'content':
index_fieldname = ''
else:
index_fieldname = u'%s:' % connections[
self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'content': '%s',
'contains': '*%s*',
'endswith': "*%s",
'startswith': "%s*",
'exact': '%s',
'gt': "{%s to}",
'gte': "[%s to]",
'lt': "{to %s}",
'lte': "[to %s]",
'fuzzy': u'%s~',
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in [
'content', 'contains', 'startswith', 'endswith', 'fuzzy'
]:
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
if isinstance(prepared_value, six.string_types):
possible_values = prepared_value.split(' ')
else:
if is_datetime is True:
prepared_value = self._convert_datetime(
prepared_value)
possible_values = [prepared_value]
for possible_value in possible_values:
terms.append(filter_types[filter_type] %
self.backend._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
is_datetime = False
if hasattr(possible_value, 'strftime'):
is_datetime = True
pv = self.backend._from_python(possible_value)
if is_datetime is True:
pv = self._convert_datetime(pv)
if isinstance(pv, six.string_types) and not is_datetime:
in_options.append('"%s"' % pv)
else:
in_options.append('%s' % pv)
query_frag = "(%s)" % " OR ".join(in_options)
elif filter_type == 'range':
start = self.backend._from_python(prepared_value[0])
end = self.backend._from_python(prepared_value[1])
if hasattr(prepared_value[0], 'strftime'):
start = self._convert_datetime(start)
if hasattr(prepared_value[1], 'strftime'):
end = self._convert_datetime(end)
query_frag = u"[%s to %s]" % (start, end)
elif filter_type == 'exact':
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith('(') and not query_frag.endswith(')'):
query_frag = "(%s)" % query_frag
return u"%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ''
is_datetime = False
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, 'values_list'):
value = list(value)
if hasattr(value, 'strftime'):
is_datetime = True
if isinstance(value, six.string_types) and value != ' ':
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == 'content':
index_fieldname = ''
else:
index_fieldname = u'%s:' % connections[self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'contains': '%s',
'startswith': "%s*",
'exact': '%s',
'gt': "{%s to}",
'gte': "[%s to]",
'lt': "{to %s}",
'lte': "[to %s]",
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in ['contains', 'startswith']:
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
if isinstance(prepared_value, six.string_types):
possible_values = prepared_value.split(' ')
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
possible_values = [prepared_value]
for possible_value in possible_values:
terms.append(filter_types[filter_type] % self.backend._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
is_datetime = False
if hasattr(possible_value, 'strftime'):
is_datetime = True
pv = self.backend._from_python(possible_value)
if is_datetime is True:
pv = self._convert_datetime(pv)
if isinstance(pv, six.string_types) and not is_datetime:
in_options.append('"%s"' % pv)
else:
in_options.append('%s' % pv)
query_frag = "(%s)" % " OR ".join(in_options)
elif filter_type == 'range':
start = self.backend._from_python(prepared_value[0])
end = self.backend._from_python(prepared_value[1])
if hasattr(prepared_value[0], 'strftime'):
start = self._convert_datetime(start)
if hasattr(prepared_value[1], 'strftime'):
end = self._convert_datetime(end)
query_frag = u"[%s to %s]" % (start, end)
elif filter_type == 'exact':
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith('(') and not query_frag.endswith(')'):
query_frag = "(%s)" % query_frag
return u"%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ""
if not hasattr(value, "input_type_name"):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, "values_list"):
value = list(value)
if isinstance(value, basestring):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend.conn._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == "content":
index_fieldname = ""
else:
index_fieldname = u"%s:" % connections[self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
"contains": u"%s",
"startswith": u"%s*",
"exact": u"%s",
"gt": u"{%s TO *}",
"gte": u"[%s TO *]",
"lt": u"{* TO %s}",
"lte": u"[* TO %s]",
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in ["contains", "startswith"]:
if value.input_type_name == "exact":
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
for possible_value in prepared_value.split(" "):
terms.append(filter_types[filter_type] % self.backend.conn._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == "in":
in_options = []
for possible_value in prepared_value:
in_options.append(u'"%s"' % self.backend.conn._from_python(possible_value))
query_frag = u"(%s)" % " OR ".join(in_options)
elif filter_type == "range":
start = self.backend.conn._from_python(prepared_value[0])
end = self.backend.conn._from_python(prepared_value[1])
query_frag = u'["%s" TO "%s"]' % (start, end)
elif filter_type == "exact":
if value.input_type_name == "exact":
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if value.input_type_name != "exact":
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not query_frag.startswith("(") and not query_frag.endswith(")"):
query_frag = "(%s)" % query_frag
return u"%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ""
if not hasattr(value, "input_type_name"):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, "values_list"):
value = list(value)
if isinstance(value, six.string_types):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend.conn._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == "content":
index_fieldname = ""
else:
index_fieldname = "%s:" % connections[
self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
"content": "%s",
"contains": "*%s*",
"endswith": "*%s",
"startswith": "%s*",
"exact": "%s",
"gt": "{%s TO *}",
"gte": "[%s TO *]",
"lt": "{* TO %s}",
"lte": "[* TO %s]",
"fuzzy": "%s~",
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in [
"content",
"contains",
"startswith",
"endswith",
"fuzzy",
]:
if value.input_type_name == "exact":
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
for possible_value in prepared_value.split(" "):
terms.append(
filter_types[filter_type] %
self.backend.conn._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = "(%s)" % " AND ".join(terms)
elif filter_type == "in":
in_options = []
if not prepared_value:
query_frag = "(!*:*)"
else:
for possible_value in prepared_value:
in_options.append(
'"%s"' %
self.backend.conn._from_python(possible_value))
query_frag = "(%s)" % " OR ".join(in_options)
elif filter_type == "range":
start = self.backend.conn._from_python(prepared_value[0])
end = self.backend.conn._from_python(prepared_value[1])
query_frag = '["%s" TO "%s"]' % (start, end)
elif filter_type == "exact":
if value.input_type_name == "exact":
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if value.input_type_name != "exact":
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith("(") and not query_frag.endswith(")"):
query_frag = "(%s)" % query_frag
return "%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ""
is_datetime = False
if not hasattr(value, "input_type_name"):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, "values_list"):
value = list(value)
if hasattr(value, "strftime"):
is_datetime = True
if isinstance(value, str) and value != " ":
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == "content":
index_fieldname = ""
else:
index_fieldname = "%s:" % connections[
self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
"content": "%s",
"contains": "*%s*",
"endswith": "*%s",
"startswith": "%s*",
"exact": "%s",
"gt": "{%s to}",
"gte": "[%s to]",
"lt": "{to %s}",
"lte": "[to %s]",
"fuzzy": "%s~{}/%d".format(FUZZY_WHOOSH_MAX_EDITS),
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in [
"content",
"contains",
"startswith",
"endswith",
"fuzzy",
]:
if value.input_type_name == "exact":
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
if isinstance(prepared_value, str):
possible_values = prepared_value.split(" ")
else:
if is_datetime is True:
prepared_value = self._convert_datetime(
prepared_value)
possible_values = [prepared_value]
for possible_value in possible_values:
possible_value_str = self.backend._from_python(
possible_value)
if filter_type == "fuzzy":
terms.append(filter_types[filter_type] %
(possible_value_str,
min(FUZZY_WHOOSH_MIN_PREFIX,
len(possible_value_str))))
else:
terms.append(filter_types[filter_type] %
possible_value_str)
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = "(%s)" % " AND ".join(terms)
elif filter_type == "in":
in_options = []
for possible_value in prepared_value:
is_datetime = False
if hasattr(possible_value, "strftime"):
is_datetime = True
pv = self.backend._from_python(possible_value)
if is_datetime is True:
pv = self._convert_datetime(pv)
if isinstance(pv, str) and not is_datetime:
in_options.append('"%s"' % pv)
else:
in_options.append("%s" % pv)
query_frag = "(%s)" % " OR ".join(in_options)
elif filter_type == "range":
start = self.backend._from_python(prepared_value[0])
end = self.backend._from_python(prepared_value[1])
if hasattr(prepared_value[0], "strftime"):
start = self._convert_datetime(start)
if hasattr(prepared_value[1], "strftime"):
end = self._convert_datetime(end)
query_frag = "[%s to %s]" % (start, end)
elif filter_type == "exact":
if value.input_type_name == "exact":
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith("(") and not query_frag.endswith(")"):
query_frag = "(%s)" % query_frag
return "%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ''
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, 'values_list'):
value = list(value)
if isinstance(value, basestring):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend.conn._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == 'content':
index_fieldname = ''
else:
index_fieldname = u'%s:' % connections[
self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'contains': u'%s',
'startswith': u'%s*',
'exact': u'%s',
'gt': u'{%s TO *}',
'gte': u'[%s TO *]',
'lt': u'{* TO %s}',
'lte': u'[* TO %s]',
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in ['contains', 'startswith']:
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
for possible_value in prepared_value.split(' '):
terms.append(
filter_types[filter_type] %
self.backend.conn._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
in_options.append(
u'"%s"' %
self.backend.conn._from_python(possible_value))
query_frag = u"(%s)" % " OR ".join(in_options)
elif filter_type == 'range':
start = self.backend.conn._from_python(prepared_value[0])
end = self.backend.conn._from_python(prepared_value[1])
query_frag = u'["%s" TO "%s"]' % (start, end)
elif filter_type == 'exact':
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if value.input_type_name != 'exact':
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
return u"%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ''
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, 'values_list'):
value = list(value)
if isinstance(value, basestring):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend.conn._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == 'content':
index_fieldname = ''
else:
index_fieldname = u'%s:' % connections[self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'contains': u'%s',
'startswith': u'%s*',
'exact': u'%s',
'gt': u'{%s TO *}',
'gte': u'[%s TO *]',
'lt': u'{* TO %s}',
'lte': u'[* TO %s]',
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in ['contains', 'startswith']:
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
for possible_value in prepared_value.split(' '):
terms.append(filter_types[filter_type] % self.backend.conn._from_python(possible_value))
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
in_options.append(u'"%s"' % self.backend.conn._from_python(possible_value))
query_frag = u"(%s)" % " OR ".join(in_options)
elif filter_type == 'range':
start = self.backend.conn._from_python(prepared_value[0])
end = self.backend.conn._from_python(prepared_value[1])
query_frag = u'["%s" TO "%s"]' % (start, end)
elif filter_type == 'exact':
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if value.input_type_name != 'exact':
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
return u"%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
from haystack import connections
query_frag = ""
is_datetime = False
if not hasattr(value, "input_type_name"):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, "values_list"):
value = list(value)
if hasattr(value, "strftime"):
is_datetime = True
if isinstance(value, six.string_types) and value != " ":
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what pysolr wants if needed.
prepared_value = self.backend._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == "content":
index_fieldname = ""
else:
index_fieldname = "%s:" % connections[
self._using
].get_unified_index().get_index_fieldname(field)
filter_types = {
"content": "%s",
"contains": "*%s*",
"endswith": "*%s",
"startswith": "%s*",
"exact": "%s",
"gt": "{%s to}",
"gte": "[%s to]",
"lt": "{to %s}",
"lte": "[to %s]",
"fuzzy": "%s~{}/%d".format(FUZZY_WHOOSH_MAX_EDITS),
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in [
"content",
"contains",
"startswith",
"endswith",
"fuzzy",
]:
if value.input_type_name == "exact":
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
if isinstance(prepared_value, six.string_types):
possible_values = prepared_value.split(" ")
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
possible_values = [prepared_value]
for possible_value in possible_values:
possible_value_str = self.backend._from_python(
possible_value
)
if filter_type == "fuzzy":
terms.append(
filter_types[filter_type] % (
possible_value_str,
min(
FUZZY_WHOOSH_MIN_PREFIX,
len(possible_value_str)
)
)
)
else:
terms.append(
filter_types[filter_type] % possible_value_str
)
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = "(%s)" % " AND ".join(terms)
elif filter_type == "in":
in_options = []
for possible_value in prepared_value:
is_datetime = False
if hasattr(possible_value, "strftime"):
is_datetime = True
pv = self.backend._from_python(possible_value)
if is_datetime is True:
pv = self._convert_datetime(pv)
if isinstance(pv, six.string_types) and not is_datetime:
in_options.append('"%s"' % pv)
else:
in_options.append("%s" % pv)
query_frag = "(%s)" % " OR ".join(in_options)
elif filter_type == "range":
start = self.backend._from_python(prepared_value[0])
end = self.backend._from_python(prepared_value[1])
if hasattr(prepared_value[0], "strftime"):
start = self._convert_datetime(start)
if hasattr(prepared_value[1], "strftime"):
end = self._convert_datetime(end)
query_frag = "[%s to %s]" % (start, end)
elif filter_type == "exact":
if value.input_type_name == "exact":
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if is_datetime is True:
prepared_value = self._convert_datetime(prepared_value)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith("(") and not query_frag.endswith(")"):
query_frag = "(%s)" % query_frag
return "%s%s" % (index_fieldname, query_frag)
def build_query_fragment(self, field, filter_type, value):
query_frag = ''
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``
if hasattr(value, 'values_list'):
value = list(value)
if isinstance(value, six.string_types):
# It's not an ``InputType``. Assume ``Clean``
value = Clean(value)
else:
value = PythonData(value)
prepared_value = value.prepare(self)
if field == 'content':
index_fieldname = ''
filter_types = {
'contains': u'({value})',
'startswith': u'~{value}',
'exact': u'"{value}"',
}
else:
index_fieldname = connections[self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'contains': u'{field} = ({value})',
'startswith': u'{field} = ~{value}',
'exact': u'{field} = "{value}"',
'gt': u'{field} > {value}',
'gte': u'{field} >= {value}',
'lt': u'{field} < {value}',
'lte': u'{field <= {value}',
}
if filter_type in ['contains', 'startswith']:
if value.input_type_name == 'exact':
prepared_value = '"{}"'.format(prepared_value)
query_frag = filter_types[filter_type].format(field=index_fieldname, value=prepared_value)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
if isinstance(possible_value, six.string_types):
in_options.append('"{}"'.format(possible_value))
else:
in_options.append('{}'.format(possible_value))
frag = '({})'.format(') OR ('.join(in_options))
query_frag = filter_types['contains'].format(field=index_fieldname, value=frag)
elif filter_type == 'range':
start = prepared_value[0]
end = prepared_value[1]
start = filter_types['gte'].format(field=index_fieldname, value=start)
end = filter_types['lte'].format(field=index_fieldname, value=end)
query_frag = '({}) AND ({})'.format(start, end)
else:
if value.input_type_name != 'exact':
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type].format(field=index_fieldname, value=prepared_value)
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith('(') and not query_frag.endswith(')'):
query_frag = '({})'.format(query_frag)
return query_frag
def build_query_fragment(self, field, filter_type, value):
"""Construct the query fragment based on the field that is been search for.
:param field: Field to search.
:type field: str
:param filter_type: Filter type (contains, gt, lt...)
:type filter_type: str
:param value: Value to search.
:type value: str
:return: Query fragment.
:rtype: str
"""
from haystack import connections
if not hasattr(value, 'input_type_name'):
# Handle when we've got a ``ValuesListQuerySet``...
if hasattr(value, 'values_list'):
value = list(value)
if isinstance(value, six.string_types):
# It's not an ``InputType``. Assume ``Clean``.
value = Clean(value)
else:
value = PythonData(value)
# Prepare the query using the InputType.
prepared_value = value.prepare(self)
if not isinstance(prepared_value, (set, list, tuple)):
# Then convert whatever we get back to what elasticsearch wants if needed.
prepared_value = self.backend._from_python(prepared_value)
# 'content' is a special reserved word, much like 'pk' in
# Django's ORM layer. It indicates 'no special field'.
if field == 'content':
index_fieldnames = {}
else:
index_fieldnames = connections[self._using].get_unified_index().get_index_fieldname(field)
filter_types = {
'contains': u'%s',
'startswith': u'%s*',
'exact': u'%s',
'gt': u'{%s TO *}',
'gte': u'[%s TO *]',
'lt': u'{* TO %s}',
'lte': u'[* TO %s]',
}
if value.post_process is False:
query_frag = prepared_value
else:
if filter_type in ['contains', 'startswith']:
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
# Iterate over terms & incorportate the converted form of each into the query.
terms = []
if isinstance(prepared_value, six.string_types):
for possible_value in prepared_value.split(' '):
term = filter_types[filter_type] % self.backend._from_python(possible_value)
terms.append(u'"%s"' % term)
elif isinstance(prepared_value, bool):
term = filter_types[filter_type] % six.text_type(prepared_value).lower()
terms.append(u'"%s"' % term)
else:
terms.append(filter_types[filter_type] % prepared_value)
if len(terms) == 1:
query_frag = terms[0]
else:
query_frag = u"(%s)" % " AND ".join(terms)
elif filter_type == 'in':
in_options = []
for possible_value in prepared_value:
if isinstance(possible_value, six.string_types):
in_options.append(u'"%s"' % self.backend._from_python(possible_value))
elif isinstance(possible_value, bool):
term = filter_types[filter_type] % six.text_type(possible_value).lower()
in_options.append(u'"%s"' % term)
else:
in_options.append(u'%s' % possible_value)
query_frag = u"(%s)" % " OR ".join(in_options)
elif filter_type == 'range':
start = self.backend._from_python(prepared_value[0])
end = self.backend._from_python(prepared_value[1])
query_frag = u'[%s TO %s]' % (start, end)
elif filter_type == 'exact':
if value.input_type_name == 'exact':
query_frag = prepared_value
else:
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
else:
if value.input_type_name == 'exact':
prepared_value = Exact(prepared_value).prepare(self)
query_frag = filter_types[filter_type] % prepared_value
if len(query_frag) and not isinstance(value, Raw):
if not query_frag.startswith('(') and not query_frag.endswith(')'):
query_frag = '(%s)' % str(query_frag)
field_names = set(index_fieldnames.values())
if field_names:
multiple_query_frag = ' OR '.join([u'%s:%s' % (field_name, query_frag) for field_name in field_names])
result = "(%s)" % multiple_query_frag
else:
result = query_frag
return result
