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Removed old Q-object implementation

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Harry Marr 2010-10-17 14:22:45 +01:00
parent 012352cf24
commit 36993029ad
1 changed files with 0 additions and 118 deletions
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118
mongoengine/queryset.py
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@ -268,124 +268,6 @@ class Q(QNode):
return not bool(self.query)
class OldQ(object):
OR = '||'
AND = '&&'
OPERATORS = {
'eq': ('((this.%(field)s instanceof Array) && '
' this.%(field)s.indexOf(%(value)s) != -1) ||'
' this.%(field)s == %(value)s'),
'ne': 'this.%(field)s != %(value)s',
'gt': 'this.%(field)s > %(value)s',
'gte': 'this.%(field)s >= %(value)s',
'lt': 'this.%(field)s < %(value)s',
'lte': 'this.%(field)s <= %(value)s',
'lte': 'this.%(field)s <= %(value)s',
'in': '%(value)s.indexOf(this.%(field)s) != -1',
'nin': '%(value)s.indexOf(this.%(field)s) == -1',
'mod': '%(field)s %% %(value)s',
'all': ('%(value)s.every(function(a){'
'return this.%(field)s.indexOf(a) != -1 })'),
'size': 'this.%(field)s.length == %(value)s',
'exists': 'this.%(field)s != null',
'regex_eq': '%(value)s.test(this.%(field)s)',
'regex_ne': '!%(value)s.test(this.%(field)s)',
}
def __init__(self, **query):
self.query = [query]
def _combine(self, other, op):
obj = Q()
if not other.query[0]:
return self
if self.query[0]:
obj.query = (['('] + copy.deepcopy(self.query) + [op] +
copy.deepcopy(other.query) + [')'])
else:
obj.query = copy.deepcopy(other.query)
return obj
def __or__(self, other):
return self._combine(other, self.OR)
def __and__(self, other):
return self._combine(other, self.AND)
def as_js(self, document):
js = []
js_scope = {}
for i, item in enumerate(self.query):
if isinstance(item, dict):
item_query = QuerySet._transform_query(document, **item)
# item_query will values will either be a value or a dict
js.append(self._item_query_as_js(item_query, js_scope, i))
else:
js.append(item)
return pymongo.code.Code(' '.join(js), js_scope)
def _item_query_as_js(self, item_query, js_scope, item_num):
# item_query will be in one of the following forms
# {'age': 25, 'name': 'Test'}
# {'age': {'$lt': 25}, 'name': {'$in': ['Test', 'Example']}
# {'age': {'$lt': 25, '$gt': 18}}
js = []
for i, (key, value) in enumerate(item_query.items()):
op = 'eq'
# Construct a variable name for the value in the JS
value_name = 'i%sf%s' % (item_num, i)
if isinstance(value, dict):
# Multiple operators for this field
for j, (op, value) in enumerate(value.items()):
# Create a custom variable name for this operator
op_value_name = '%so%s' % (value_name, j)
# Construct the JS that uses this op
value, operation_js = self._build_op_js(op, key, value,
op_value_name)
# Update the js scope with the value for this op
js_scope[op_value_name] = value
js.append(operation_js)
else:
# Construct the JS for this field
value, field_js = self._build_op_js(op, key, value, value_name)
js_scope[value_name] = value
js.append(field_js)
return ' && '.join(js)
def _build_op_js(self, op, key, value, value_name):
"""Substitute the values in to the correct chunk of Javascript.
"""
if isinstance(value, RE_TYPE):
# Regexes are handled specially
if op.strip('$') == 'ne':
op_js = Q.OPERATORS['regex_ne']
else:
op_js = Q.OPERATORS['regex_eq']
else:
op_js = Q.OPERATORS[op.strip('$')]
# Comparing two ObjectIds in Javascript doesn't work..
if isinstance(value, pymongo.objectid.ObjectId):
value = unicode(value)
# Handle DBRef
if isinstance(value, pymongo.dbref.DBRef):
op_js = '(this.%(field)s.$id == "%(id)s" &&'\
' this.%(field)s.$ref == "%(ref)s")' % {
'field': key,
'id': unicode(value.id),
'ref': unicode(value.collection)
}
value = None
# Perform the substitution
operation_js = op_js % {
'field': key,
'value': value_name
}
return value, operation_js
class QuerySet(object):
"""A set of results returned from a query. Wraps a MongoDB cursor,
providing :class:`~mongoengine.Document` objects as the results.