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This module is a generic place used to hold little helper functions
and classes until a better place in the distribution is found.
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itervalues� s c C s t | j � � S( N( t dictR4 ( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt copy� s c C s
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R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR � s ( R R R R ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRH � s RI c B s8 e Z d Z d � Z d d � Z d d � Z d � Z RS( sQ A cursor that uses a real dict as the base type for rows.
Note that this cursor is extremely specialized and does not allow
the normal access (using integer indices) to fetched data. If you need
to access database rows both as a dictionary and a list, then use
the generic `DictCursor` instead of `!RealDictCursor`.
c O s0 t | d <t t | � j | | � d | _ d S( NR i ( t RealDictRowR RI R R ( R R
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RJ c B s8 e Z d Z d Z d � Z d � Z d � Z d � Z RS( s. A `!dict` subclass representing a data record.t _column_mappingc C s= t j | � | j r- | j r- | j � n | j | _ d S( N( R? R R' RK R RM ( R R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR � s
c C s5 t | � t k r" | j | } n t j | | | � S( N( t typeR- RM R? R2 ( R t namet value( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR2 � s c C s | j � | j f S( N( R@ RM ( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRB � s c C s" | j | d � | d | _ d S( Ni i ( t updateRM ( R RC ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRD s ( R R R RE R R2 RB RD ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRJ � s t NamedTupleConnectionc B s e Z d Z d � Z RS( s8 A connection that uses `NamedTupleCursor` automatically.c O s) | j d t � t t | � j | | � S( NR ( R t NamedTupleCursorR RR R ( R R
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s� A cursor that generates results as `~collections.namedtuple`.
`!fetch*()` methods will return named tuples instead of regular tuples, so
their elements can be accessed both as regular numeric items as well as
attributes.
>>> nt_cur = conn.cursor(cursor_factory=psycopg2.extras.NamedTupleCursor)
>>> rec = nt_cur.fetchone()
>>> rec
Record(id=1, num=100, data="abc'def")
>>> rec[1]
100
>>> rec.data
"abc'def"
c C s" d | _ t t | � j | | � S( N( R t RecordR RS R" ( R R# R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR" s c C s" d | _ t t | � j | | � S( N( R RT R RS t executemany( R R# R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRU " s c C s" d | _ t t | � j | | � S( N( R RT R RS R% ( R R& R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR% & s c C s] t t | � j � } | d k rY | j } | d k rL | j � } | _ n | j | � Sd S( N( R RS R R RT t _make_ntt _make( R t tt nt( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR * s c C sS t t | � j | � } | j } | d k rC | j � } | _ n t | j | � S( N( R RS R RT R RV t mapRW ( R R t tsRY ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR 2 s
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c c sx t t | � j � } | j � } | j } | d k rL | j � } | _ n | j | � Vx | j | j � � Vq] d S( N( R RS R R RT R RV RW ( R t itRX RY ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR @ s i����( t
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| j � d S( N( t _exc( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRV P s c C s- | d g | j p d D] } | d ^ q � S( NRT i ( ( R' ( R R] t d( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRV S s N( R R R R RT R" RU R% R R R R t collectionsR] t ImportErrorR^ RV ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRS s
t LoggingConnectionc B sD e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s} A connection that logs all queries to a file or logger__ object.
.. __: http://docs.python.org/library/logging.html
c C s@ | | _ t r0 t | t j � r0 | j | _ n | j | _ d S( s� Initialize the connection to log to `!logobj`.
The `!logobj` parameter can be an open file object or a Logger
instance from the standard logging module.
N( t _logobjt _loggingR, t Loggert _logtologgert logt
_logtofile( R t logobj( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt
initialize] s c C s | S( s� Filter the query before logging it.
This is the method to overwrite to filter unwanted queries out of the
log or to add some extra data to the output. The default implementation
just does nothing.
( ( R t msgt curs( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt filteri s c C s6 | j | | � } | r2 | j j | t j � n d S( N( Rm Rc t writet _ost linesep( R Rk Rl ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRh r s c C s/ | j | | � } | r+ | j j | � n d S( N( Rm Rc t debug( R Rk Rl ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRf v s c C s% t | d � s! | j d � � n d S( NRc s3 LoggingConnection object has not been initialize()d( t hasattrt ProgrammingError( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt _checkz s c O s3 | j � | j d t � t t | � j | | � S( NR ( Rt R t
LoggingCursorR Rb R ( R R
R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR s
( R R R Rj Rm Rh Rf Rt R ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRb W s Ru c B s& e Z d Z d d � Z d d � Z RS( sC A cursor that logs queries using its connection logging facilities.c C s; z t t | � j | | � SWd | j j | j | � Xd S( N( R Ru R" R Rg R# ( R R# R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR" � s c C s; z t t | � j | | � SWd | j j | j | � Xd S( N( R Ru R% R Rg R# ( R R& R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR% � s N( R R R R R" R% ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRu � s t MinTimeLoggingConnectionc B s, e Z d Z d d � Z d � Z d � Z RS( s� A connection that logs queries based on execution time.
This is just an example of how to sub-class `LoggingConnection` to
provide some extra filtering for the logged queries. Both the
`initialize()` and `filter()` methods are overwritten to make sure
that only queries executing for more than ``mintime`` ms are logged.
Note that this connection uses the specialized cursor
`MinTimeLoggingCursor`.
i c C s t j | | � | | _ d S( N( Rb Rj t _mintime( R Ri t mintime( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRj � s c C s= t j � | j d } | | j k r9 | t j d | Sd S( Ni� s (execution time: %d ms)( t _timet timet timestampRw Ro Rp ( R Rk Rl RX ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyRm � s c O s# | j d t � t j | | | � S( NR ( R t MinTimeLoggingCursorRb R ( R R
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R| c B s& e Z d Z d d � Z d d � Z RS( s= The cursor sub-class companion to `MinTimeLoggingConnection`.c C s" t j � | _ t j | | | � S( N( Ry Rz R{ Ru R" ( R R# R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR" � s c C s" t j � | _ t j | | | � S( N( Ry Rz R{ Ru R" ( R R& R$ ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR% � s N( R R R R R" R% ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR| � s t UUID_adapterc B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s� Adapt Python's uuid.UUID__ type to PostgreSQL's uuid__.
.. __: http://docs.python.org/library/uuid.html
.. __: http://www.postgresql.org/docs/current/static/datatype-uuid.html
c C s
| | _ d S( N( t _uuid( R t uuid( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR � s c C s | t j k r | Sd S( N( t _extt ISQLQuote( R t proto( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt __conform__� s c C s t d | j � S( Ns
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'%s'::uuid( R~ ( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt __str__� s ( R R R R R� R� R� ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR} � s
c s� d d l � | s! d } d } n0 t | t t f � rE | \ } } n | } d } t j | f d � f d � � t _ t j | f d t j � t _ t j t j | � t j t j | � t j
� j t � t j S( sR Create the UUID type and an uuid.UUID adapter.
:param oids: oid for the PostgreSQL :sql:`uuid` type, or 2-items sequence
with oids of the type and the array. If not specified, use PostgreSQL
standard oids.
:param conn_or_curs: where to register the typecaster. If not specified,
register it globally.
i����Ni� i� t UUIDc s | r � j | � p d S( N( R� R ( RC R ( R ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt <lambda>� s s UUID[]( R R, R/ R7 R� t new_typeR� t new_array_typet UUIDARRAYt
register_typet register_adapterR} ( t oidst conn_or_curst oid1t oid2( ( R sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt
register_uuid� s
t Inetc B sD e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z RS( sC Wrap a string to allow for correct SQL-quoting of inet values.
Note that this adapter does NOT check the passed value to make
sure it really is an inet-compatible address but DOES call adapt()
on it to make sure it is impossible to execute an SQL-injection
by passing an evil value to the initializer.
c C s
| | _ d S( N( t addr( R R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR � s c C s d | j j | j f S( Ns %s(%r)( t __class__R R� ( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt __repr__� s c C s
| | _ d S( N( t _conn( R t conn( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt prepare� s c C sE t | j � } t | d � r1 | j | j � n | j � t d � S( NR� s ::inet( t _AR� Rr R� R� R� R ( R t obj( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR� s c C s | t j k r | Sd S( N( R� R� ( R R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR� s c C s
t | j � S( N( t strR� ( R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR� s ( R R R R R� R� R� R� R� ( ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR� � s c C s� | s d } d } n0 t | t t f � r9 | \ } } n | } d } t j | f d d � � t _ t j | f d t j � t _ t j t j | � t j t j | � t j S( sL Create the INET type and an Inet adapter.
:param oid: oid for the PostgreSQL :sql:`inet` type, or 2-items sequence
with oids of the type and the array. If not specified, use PostgreSQL
standard oids.
:param conn_or_curs: where to register the typecaster. If not specified,
register it globally.
ie i t INETc S s | r t | � p d S( N( R� R ( RC R ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyR� ! s t INETARRAY( R, R/ R7 R� R� R� R� R� R� ( t oidR� R� R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt
register_inet s c C s d d l } | j d t � d S( s The function used to register an alternate type caster for
:sql:`TIMESTAMP WITH TIME ZONE` to deal with historical time zones with
seconds in the UTC offset.
These are now correctly handled by the default type caster, so currently
the function doesn't do anything.
i����Nt
deprecated( t warningst warnt DeprecationWarning( R� R� R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt register_tstz_w_secs* s c C s� d d l } d d l m } m } m } x� | j � } | | k rG Pq+ | | k rr | j | j � g g g � q+ | | k r� | j g | j � g g � q+ | j d | � � q+ d S( s Wait until a connection or cursor has data available.
The function is an example of a wait callback to be registered with
`~psycopg2.extensions.set_wait_callback()`. This function uses
:py:func:`~select.select()` to wait for data available.
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POLL_WRITEs bad state from poll: %s( t selectt psycopg2.extensionsR� R� R� t pollt filenot OperationalError( R� R� R� R� R� t state( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt wait_select6 s c C sm | d k r t j d � � n t | d � rK | j } | j d t � } n | } | j d t � } | | f S( sE Return the connection and a DBAPI cursor from a connection or cursor.s no connection or cursor providedR" R N( R t psycopg2Rs Rr R R t _cursor( R� R� Rl ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt _solve_conn_cursM s t
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| � t d � S( s* Use the operators available in PG pre-9.0.s
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# hstore key:
# a string of normal or escaped chars
"((?: [^"\\] | \\. )*)"
\s*=>\s* # hstore value
(?:
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# or a quoted string like the key
| "((?: [^"\\] | \\. )*)"
)
(?:\s*,\s*|$) # pairs separated by comma or end of string.
s \\(.)c C s� | d k r d Si } d } x� | j j | � D]� } | d k sS | j � | k ri t j d | � � n | j d | j d � � } | j d � } | d k r� | j d | � } n | | | <| j � } q/ W| t | � k r� t j d | � � n | S( s� Parse an hstore representation in a Python string.
The hstore is represented as something like::
"a"=>"1", "b"=>"2"
with backslash-escaped strings.
i s$ error parsing hstore pair at char %ds \1i i s1 error parsing hstore: unparsed data after char %dN(
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c C s< | d k r d S| j t j | j j � } | j | | � S( s2 Parse an hstore returning unicode keys and values.N( R t decodeR� t encodingsR t encodingR� ( R R� R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt
parse_unicode� s c C s� t | � \ } } | j } | j d k r0 d p3 d } g g } } | j d | � x0 | D]( } | j | d � | j | d � q[ W| t j k r� | j r� | j � n t | � t | � f S( sB Return the lists of OID of the hstore and hstore[] types.
i�9 t typarrayR� sl SELECT t.oid, %s
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| d | � } t j | | r | p!d � t j t t � | rpt j | d | � } t j | | rf| pid � n d S( s Register adapter and typecaster for `!dict`\-\ |hstore| conversions.
:param conn_or_curs: a connection or cursor: the typecaster will be
registered only on this object unless *globally* is set to `!True`
:param globally: register the adapter globally, not only on *conn_or_curs*
:param unicode: if `!True`, keys and values returned from the database
will be `!unicode` instead of `!str`. The option is not available on
Python 3
:param oid: the OID of the |hstore| type if known. If not, it will be
queried on *conn_or_curs*.
:param array_oid: the OID of the |hstore| array type if known. If not, it
will be queried on *conn_or_curs*.
The connection or cursor passed to the function will be used to query the
database and look for the OID of the |hstore| type (which may be different
across databases). If querying is not desirable (e.g. with
:ref:`asynchronous connections <async-support>`) you may specify it in the
*oid* parameter, which can be found using a query such as :sql:`SELECT
'hstore'::regtype::oid`. Analogously you can obtain a value for *array_oid*
using a query such as :sql:`SELECT 'hstore[]'::regtype::oid`.
Note that, when passing a dictionary from Python to the database, both
strings and unicode keys and values are supported. Dictionaries returned
from the database have keys/values according to the *unicode* parameter.
The |hstore| contrib module must be already installed in the database
(executing the ``hstore.sql`` script in your ``contrib`` directory).
Raise `~psycopg2.ProgrammingError` if the type is not found.
i s\ hstore type not found in the database. please install it from your 'contrib/hstore.sql' filei i t HSTOREt HSTOREARRAYN( R R� R� R� Rs R, R- R7 RF RG R� R� R� R� R� R� R? R� ( R� t globallyt unicodeR� t array_oidR1 t castR� R� ( ( sB /opt/alt/python27/lib64/python2.7/site-packages/psycopg2/extras.pyt register_hstore� s,
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The class is usually created by the `register_composite()` function.
You may want to create and register manually instances of the class if
querying the database at registration time is not desirable (such as when
using an :ref:`asynchronous connections <async-support>`).
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| j | � S( s Return a new Python object representing the data being casted.
*values* is the list of attributes, already casted into their Python
representation.
You can subclass this method to :ref:`customize the composite cast
<custom-composite>`.
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| \(? ([^",)]+) [,)] # or an unquoted string
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| �S( s} Return a `CompositeCaster` instance for the type *name*.
Raise `ProgrammingError` if the type is not found.
t .i t publici�9 R� R� s� SELECT t.oid, %s, attname, atttypid
FROM pg_type t
JOIN pg_namespace ns ON typnamespace = ns.oid
JOIN pg_attribute a ON attrelid = typrelid
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AND attnum > 0 AND NOT attisdropped
ORDER BY attnum;
s PostgreSQL type '%s' not foundi i i R� R� ( R� R� t splitR� R" R R� R� R� R� R� Rs ( R RO R� R� Rl R� R� t tnameR� t recst type_oidR� t rt
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c C s} | d k r t } n | j | | � } t j | j | r@ | pC d � | j d k ry t j | j | ro | pr d � n | S( s Register a typecaster to convert a composite type into a tuple.
:param name: the name of a PostgreSQL composite type, e.g. created using
the |CREATE TYPE|_ command
:param conn_or_curs: a connection or cursor used to find the type oid and
components; the typecaster is registered in a scope limited to this
object, unless *globally* is set to `!True`
:param globally: if `!False` (default) register the typecaster only on
*conn_or_curs*, otherwise register it globally
:param factory: if specified it should be a `CompositeCaster` subclass: use
it to :ref:`customize how to cast composite types <custom-composite>`
:return: the registered `CompositeCaster` or *factory* instance
responsible for the conversion
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