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Add register_default_jsonb() and register the type

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This commit is contained in:
Daniele Varrazzo 2014-08-13 00:54:49 +01:00
parent 6bca443e37
commit 9d547469b8
3 changed files with 22 additions and 3 deletions
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16
lib/_json.py
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@ -47,6 +47,10 @@ else:
JSON_OID = 114 JSON_OID = 114
JSONARRAY_OID = 199 JSONARRAY_OID = 199
# oids from PostgreSQL 9.4
JSONB_OID = 3802
JSONBARRAY_OID = 3807
class Json(object): class Json(object):
""" """
An `~psycopg2.extensions.ISQLQuote` wrapper to adapt a Python object to An `~psycopg2.extensions.ISQLQuote` wrapper to adapt a Python object to
@ -151,6 +155,18 @@ def register_default_json(conn_or_curs=None, globally=False, loads=None):
return register_json(conn_or_curs=conn_or_curs, globally=globally, return register_json(conn_or_curs=conn_or_curs, globally=globally,
loads=loads, oid=JSON_OID, array_oid=JSONARRAY_OID) loads=loads, oid=JSON_OID, array_oid=JSONARRAY_OID)
def register_default_jsonb(conn_or_curs=None, globally=False, loads=None):
"""
Create and register :sql:`jsonb` typecasters for PostgreSQL 9.4 and following.
As in `register_default_json()`, the function allows to register a
customized *loads* function for the :sql:`jsonb` type at its known oid for
PostgreSQL 9.4 and following versions. All the parameters have the same
meaning of `register_json()`.
"""
return register_json(conn_or_curs=conn_or_curs, globally=globally,
loads=loads, oid=JSONB_OID, array_oid=JSONBARRAY_OID, name='jsonb')
def _create_json_typecasters(oid, array_oid, loads=None, name='JSON'): def _create_json_typecasters(oid, array_oid, loads=None, name='JSON'):
"""Create typecasters for json data type.""" """Create typecasters for json data type."""
if loads is None: if loads is None:

6
lib/extensions.py
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@ -152,20 +152,22 @@ class NoneAdapter(object):
# Create default json typecasters for PostgreSQL 9.2 oids # Create default json typecasters for PostgreSQL 9.2 oids
from psycopg2._json import register_default_json from psycopg2._json import register_default_json, register_default_jsonb
try: try:
JSON, JSONARRAY = register_default_json() JSON, JSONARRAY = register_default_json()
JSONB, JSONBARRAY = register_default_jsonb()
except ImportError: except ImportError:
pass pass
del register_default_json del register_default_json, register_default_jsonb
# Create default Range typecasters # Create default Range typecasters
from psycopg2. _range import Range from psycopg2. _range import Range
del Range del Range
# Add the "cleaned" version of the encodings to the key. # Add the "cleaned" version of the encodings to the key.
# When the encoding is set its name is cleaned up from - and _ and turned # When the encoding is set its name is cleaned up from - and _ and turned
# uppercase, so an encoding not respecting these rules wouldn't be found in the # uppercase, so an encoding not respecting these rules wouldn't be found in the

3
lib/extras.py
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@ -965,7 +965,8 @@ def register_composite(name, conn_or_curs, globally=False, factory=None):
# expose the json adaptation stuff into the module # expose the json adaptation stuff into the module
from psycopg2._json import json, Json, register_json, register_default_json from psycopg2._json import json, Json, register_json
from psycopg2._json import register_default_json, register_default_jsonb
# Expose range-related objects # Expose range-related objects