def get(self):
from ndb import model, query
from mol.db.layers import Layer, LayerIndex
limit = self.request.get_range('limit', min_value=1, max_value=100, default=10)
offset = self.request.get_range('offset', min_value=0, default=0)
args = {}
for arg in self.request.arguments():
if arg in POLYGON_PROPS:
args['polygon.%s' % arg] = self.request.get(arg, None)
qry = LayerIndex.query()
if len(args) > 0:
gql = 'SELECT * FROM LayerIndex WHERE'
for k,v in args.iteritems():
gql = "%s \"%s\" = '%s' AND " % (gql, k, v)
gql = gql[:-5] # Removes trailing AND
logging.info(gql)
qry = query.parse_gql(gql)[0]
logging.info('QUERY='+str(qry))
polygons = []
for x in qry.fetch(limit, offset=offset): #[simplejson.loads(x.json) for x in qry.fetch(limit, offset=offset)]
p = simplejson.loads(x.json)
p['layer_index_key'] = str(x.key.id())
p['layer_key'] = str(x.key.parent().id())
polygons.append(p)
self.response.headers["Content-Type"] = "application/json"
self.response.out.write(simplejson.dumps(polygons))
def testGqlMinimal(self):
qry, options, bindings = query.parse_gql('SELECT * FROM Kind')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def testGqlMinimal(self):
qry, options, bindings = query.parse_gql('SELECT * FROM Kind')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def testResolveBindings(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Foo WHERE name = :1')
bindings[1].value = 'joe'
self.assertEqual(list(qry), [self.joe])
bindings[1].value = 'jill'
self.assertEqual(list(qry), [self.jill])
def testResolveBindings(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Foo WHERE name = :1')
bindings[1].value = 'joe'
self.assertEqual(list(qry), [self.joe])
bindings[1].value = 'jill'
self.assertEqual(list(qry), [self.jill])
def get(self):
from ndb import model, query
from mol.db.layers import Layer, LayerIndex
limit = self.request.get_range('limit', min_value=1, max_value=100, default=10)
offset = self.request.get_range('offset', min_value=0, default=0)
args = {}
for arg in self.request.arguments():
if arg in INDEXED_PROPS:
if arg in POLYGON_PROPS:
args['polygon.%s' % arg] = self.request.get(arg, None)
else:
args[arg] = self.request.get(arg, None)
qry = LayerIndex.query()
if len(args) > 0:
gql = 'SELECT * FROM LayerIndex WHERE'
for k,v in args.iteritems():
gql = "%s \"%s\" = '%s' AND " % (gql, k, v)
gql = gql[:-5] # Removes trailing AND
logging.info(gql)
qry = query.parse_gql(gql)[0]
# No keyword search yet
#for keyword in keywords:
# qry = qry.filter(RecordIndex.corpus == keyword)
logging.info('QUERY='+str(qry))
layers = model.get_multi(set([x.parent() for x in qry.fetch(limit, offset=offset, keys_only=True)]))
layers_json = [simplejson.loads(x.json) for x in layers]
self.response.headers["Content-Type"] = "application/json"
self.response.out.write(simplejson.dumps(layers_json))
def testGqlAncestor(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind WHERE ANCESTOR IS :1')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, query.Binding(None, 1))
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {1: query.Binding(None, 1)})
def testGqlAncestor(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind WHERE ANCESTOR IS :1')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, query.Binding(None, 1))
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {1: query.Binding(None, 1)})
def testGqlAncestor(self):
key = model.Key('Foo', 42)
qry, options, bindings = query.parse_gql(
"SELECT * FROM Kind WHERE ANCESTOR IS KEY('%s')" % key.urlsafe())
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, key)
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def testGqlAncestor(self):
key = model.Key('Foo', 42)
qry, options, bindings = query.parse_gql(
"SELECT * FROM Kind WHERE ANCESTOR IS KEY('%s')" % key.urlsafe())
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, key)
self.assertEqual(qry.filters, None)
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def search(cls, varname, within, pivot, limit, offset):
prop = 'within_%s' % within
gql = "SELECT * FROM CellIndex WHERE n = '%s'" % varname
gql = "%s AND %s = %d" % (gql, prop, int(pivot))
logging.info(gql)
qry = query.parse_gql(gql)[0]
logging.info('QUERY='+str(qry))
results = qry.fetch(limit, offset=offset, keys_only=True)
cell_keys = [key.parent().id() for key in results]
return set(cell_keys)
def testGqlFilter(self):
qry, options, bindings = query.parse_gql(
"SELECT * FROM Kind WHERE prop1 = 1 AND prop2 = 'a'")
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters,
query.ConjunctionNode(
[query.FilterNode('prop1', '=', 1),
query.FilterNode('prop2', '=', 'a')]))
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def testGqlFilter(self):
qry, options, bindings = query.parse_gql(
"SELECT * FROM Kind WHERE prop1 = 1 AND prop2 = 'a'")
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters,
query.ConjunctionNode(
[query.FilterNode('prop1', '=', 1),
query.FilterNode('prop2', '=', 'a')]))
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {})
def search(cls, args={}, keywords=[]):
qry = RecordIndex.query()
if len(args) > 0:
gql = "SELECT * FROM RecordIndex WHERE"
for k, v in args.iteritems():
gql = "%s %s='%s' AND " % (gql, k, v)
gql = gql[:-5] # Removes trailing AND
qry = query.parse_gql(gql)[0]
for keyword in keywords:
qry = qry.filter(RecordIndex.corpus == keyword)
logging.info("QUERY=" + str(qry))
return model.get_multi([x.parent() for x in qry.fetch(keys_only=True)])
def search(cls, args={}, keywords=[]):
qry = RecordIndex.query()
if len(args) > 0:
gql = 'SELECT * FROM RecordIndex WHERE'
for k, v in args.iteritems():
gql = "%s %s='%s' AND " % (gql, k, v)
gql = gql[:-5] # Removes trailing AND
qry = query.parse_gql(gql)[0]
for keyword in keywords:
qry = qry.filter(RecordIndex.corpus == keyword)
logging.info('QUERY=' + str(qry))
return model.get_multi([x.parent() for x in qry.fetch(keys_only=True)])
def testGqlBindings(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind WHERE prop1 = :1 AND prop2 = :foo')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters,
query.ConjunctionNode(
[query.FilterNode('prop1', '=',
query.Binding(None, 1)),
query.FilterNode('prop2', '=',
query.Binding(None, 'foo'))]))
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {1: query.Binding(None, 1),
'foo': query.Binding(None, 'foo')})
def testGqlBindings(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind WHERE prop1 = :1 AND prop2 = :foo')
self.assertEqual(qry.kind, 'Kind')
self.assertEqual(qry.ancestor, None)
self.assertEqual(qry.filters,
query.ConjunctionNode(
[query.FilterNode('prop1', '=',
query.Binding(None, 1)),
query.FilterNode('prop2', '=',
query.Binding(None, 'foo'))]))
self.assertEqual(qry.orders, None)
self.assertEqual(bindings, {1: query.Binding(None, 1),
'foo': query.Binding(None, 'foo')})
def search(cls, params):
"""Returns (records, cursor).
Arguments
args - Dictionary with Darwin Core concept keys
keywords - list of keywords to search on
"""
ctx = tasklets.get_context()
ctx.set_memcache_policy(False)
qry = RecordIndex.query()
# Add darwin core name filters
args = params['args']
if len(args) > 0:
gql = 'SELECT * FROM RecordIndex WHERE'
for k,v in args.iteritems():
gql = "%s %s = '%s' AND " % (gql, k, v)
gql = gql[:-5] # Removes trailing AND
logging.info(gql)
qry = query.parse_gql(gql)[0]
# Add full text keyword filters
keywords = params['keywords']
for keyword in keywords:
qry = qry.filter(RecordIndex.corpus == keyword)
logging.info('QUERY='+str(qry))
# Setup query paging
limit = params['limit']
cursor = params['cursor']
if cursor:
logging.info('Cursor')
index_keys, next_cursor, more = qry.fetch_page(limit, start_cursor=cursor, keys_only=True)
record_keys = [x.parent() for x in index_keys]
else:
logging.info('No cursor')
index_keys, next_cursor, more = qry.fetch_page(limit, keys_only=True)
record_keys = [x.parent() for x in index_keys]
# Return results
return (model.get_multi(record_keys), next_cursor, more)
def testGqlLimit(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind LIMIT 2')
self.assertEqual(options.limit, 2)
def testGqlOffset(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind OFFSET 2')
self.assertEqual(options.offset, 2)
def testGqlOrder(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind ORDER BY prop1')
self.assertEqual(query._orders_to_orderings(qry.orders),
[('prop1', query._ASC)])
def testGqlOrder(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind ORDER BY prop1')
self.assertEqual(query.orders_to_orderings(qry.orders),
[('prop1', query.ASC)])
def testGqlOffset(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind OFFSET 2')
self.assertEqual(options.offset, 2)
def testGqlLimit(self):
qry, options, bindings = query.parse_gql(
'SELECT * FROM Kind LIMIT 2')
self.assertEqual(options.limit, 2)
