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#------------------------------------------------------------------------------

# bind_sdo.py (Section 4.4)

#------------------------------------------------------------------------------

from __future__ import print_function

import cx_Oracle

con = cx_Oracle.connect("pythonhol", "welcome", "localhost/orclpdb")

cur = con.cursor()

# Create table

cur.execute("""begin

execute immediate 'drop table testgeometry';

exception when others then

if sqlcode <> -942 then

raise;

end if;

end;""")

cur.execute("""create table testgeometry (

id number(9) not null,

geometry MDSYS.SDO_GEOMETRY not null)""")

# Create and populate Oracle objects

typeObj = con.gettype("MDSYS.SDO_GEOMETRY")

elementInfoTypeObj = con.gettype("MDSYS.SDO_ELEM_INFO_ARRAY")

ordinateTypeObj = con.gettype("MDSYS.SDO_ORDINATE_ARRAY")

obj = typeObj.newobject()

obj.SDO_GTYPE = 2003

obj.SDO_ELEM_INFO = elementInfoTypeObj.newobject()

obj.SDO_ELEM_INFO.extend([1, 1003, 3])

obj.SDO_ORDINATES = ordinateTypeObj.newobject()

obj.SDO_ORDINATES.extend([1, 1, 5, 7])

pointTypeObj = con.gettype("MDSYS.SDO_POINT_TYPE")

obj.SDO_POINT = pointTypeObj.newobject()

obj.SDO_POINT.X = 1

obj.SDO_POINT.Y = 2

obj.SDO_POINT.Z = 3

print("Created object", obj)

# Add a new row

print("Adding row to table...")

cur.execute("insert into testgeometry values (1, :objbv)", objbv = obj)

print("Row added!")

# Define a function to dump the contents of an Oracle object

def dumpobject(obj, prefix = " "):

if obj.type.iscollection:

print(prefix, "[")

for value in obj.aslist():

if isinstance(value, cx_Oracle.Object):

dumpobject(value, prefix + " ")

else:

print(prefix + " ", repr(value))

print(prefix, "]")

else:

print(prefix, "{")

for attr in obj.type.attributes:

value = getattr(obj, attr.name)

if isinstance(value, cx_Oracle.Object):

print(prefix + " " + attr.name + " :")

dumpobject(value, prefix + " ")

else:

print(prefix + " " + attr.name + " :", repr(value))

print(prefix, "}")

# Query the row

print("Querying row just inserted...")

cur.execute("select id, geometry from testgeometry")

for (id, obj) in cur:

print("Id: ", id)

dumpobject(obj)

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