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_range.pyo
� 0��Qc @ s5 d Z d d l Z d d l m Z m Z d d l m Z m Z m Z m Z d d l m Z m Z m Z d e f d � � YZ e d � Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ e e e � e e e d d d d d d �Z e j � e e e d d d d d d �Z e j � e e e d d d d! d d" �Z e j � e d# e d d$ d d% d d& �Z e j � e d' e d d( d d) d d* �Z e j � e d+ e d d, d d- d d. �Z e j � d S(/ s1 Implementation of the Range type and adaptation i����N( t ProgrammingErrort InterfaceError( t ISQLQuotet adaptt register_adaptert b( t new_typet new_array_typet register_typet Rangec B s� e Z d Z d Z d d d e d � Z d � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z d � Z d � Z d � Z d � Z d � Z d � Z e Z Z Z RS( s� Python representation for a PostgreSQL |range|_ type. :param lower: lower bound for the range. `!None` means unbound :param upper: upper bound for the range. `!None` means unbound :param bounds: one of the literal strings ``()``, ``[)``, ``(]``, ``[]``, representing whether the lower or upper bounds are included :param empty: if `!True`, the range is empty t _lowert _uppert _boundss [)c C s^ | sC | d k r% t d | � � n | | _ | | _ | | _ n d | _ | _ | _ d S( Ns [)s (]s ()s []s bound flags not valid: %r( s [)s (]s ()s []( t ValueErrorR R R t None( t selft lowert uppert boundst empty( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __init__- s c C sD | j d k r d | j j Sd | j j | j | j | j f Sd S( Ns %s(empty=True)s %s(%r, %r, %r)( R R t __class__t __name__R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __repr__8 s c C s | j S( s: The lower bound of the range. `!None` if empty or unbound.( R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR ? s c C s | j S( s: The upper bound of the range. `!None` if empty or unbound.( R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR D s c C s | j d k S( s `!True` if the range is empty.N( R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt isemptyI s c C s | j d k r t S| j d k S( s0 `!True` if the range doesn't have a lower bound.N( R R t FalseR ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt lower_infN s c C s | j d k r t S| j d k S( s1 `!True` if the range doesn't have an upper bound.N( R R R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt upper_infT s c C s7 | j d k r t S| j d k r& t S| j d d k S( s4 `!True` if the lower bound is included in the range.i t [N( R R R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt lower_incZ s c C s7 | j d k r t S| j d k r& t S| j d d k S( s4 `!True` if the upper bound is included in the range.i t ]N( R R R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt upper_inca s c C s� | j d k r t S| j d k ra | j d d k rK | | j k r^ t Sqa | | j k ra t Sn | j d k r� | j d d k r� | | j k r� t Sq� | | j k r� t Sn t S( Ni R i R ( R R R R R t True( R t x( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __contains__h s c C s | j d k S( N( R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __nonzero__x s c C sG t | t � s t S| j | j k oF | j | j k oF | j | j k S( N( t isinstanceR R R R R ( R t other( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __eq__{ s c C s | j | � S( N( R& ( R R% ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __ne__� s c C s t | j | j | j f � S( N( t hashR R R ( R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __hash__� s c C s t d � � d S( Nsw Range objects cannot be ordered; please refer to the PostgreSQL documentation to perform this operation in the database( t TypeError( R R% ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __lt__� s ( s _lowers _uppers _boundsN( R t __module__t __doc__t __slots__R R R R t propertyR R R R R R R R" R# R& R' R) R+ t __le__t __gt__t __ge__( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR ! s$ c C s3 t j | | | � } | j | r( | p+ d � | S( s� Create and register an adapter and the typecasters to convert between a PostgreSQL |range|_ type and a PostgreSQL `Range` subclass. :param pgrange: the name of the PostgreSQL |range| type. Can be schema-qualified :param pyrange: a `Range` strict subclass, or just a name to give to a new class :param conn_or_curs: a connection or cursor used to find the oid of the range and its subtype; 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 :return: `RangeCaster` instance responsible for the conversion If a string is passed to *pyrange*, a new `Range` subclass is created with such name and will be available as the `~RangeCaster.range` attribute of the returned `RangeCaster` object. The function queries the database on *conn_or_curs* to inspect the *pgrange* type and raises `~psycopg2.ProgrammingError` if the type is not found. If querying the database is not advisable, use directly the `RangeCaster` class and register the adapter and typecasters using the provided functions. N( t RangeCastert _from_dbt _registerR ( t pgranget pyranget conn_or_curst globallyt caster( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt register_range� s t RangeAdapterc B s8 e Z d Z d Z d � Z d � Z d � Z d � Z RS( s� `ISQLQuote` adapter for `Range` subclasses. This is an abstract class: concrete classes must set a `name` class attribute or override `getquoted()`. c C s | | _ d S( N( t adapted( R R= ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR � s c C s | j t k r | Sd S( N( t _protoR ( R t proto( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt __conform__� s c C s | | _ d S( N( t _conn( R t conn( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt prepare� s c C s+ | j d k r t d � � n | j } | j rA t d | j � S| j d k r� t | j � } t | d � r� | j | j � n | j � } n t d � } | j d k r� t | j � } t | d � r� | j | j � n | j � } n t d � } t | j d � | t d � | t d | j � S( NsM RangeAdapter must be subclassed overriding its name or the getquoted() methods 'empty'::RC t NULLt (s , s , '%s')( t nameR t NotImplementedErrorR= R R R R t hasattrRC RA t getquotedR R ( R t rt aR R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyRI � s& N( R R, R- R RF R R@ RC RI ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR< � s R3 c B sn e Z d Z d d � Z d � Z e d � � Z e j d e j � Z e j d � Z d d � Z d d � Z RS( s Helper class to convert between `Range` and PostgreSQL range types. Objects of this class are usually created by `register_range()`. Manual creation could be useful if querying the database is not advisable: in this case the oids must be provided. c C s� | | _ | j | | � | j j p1 | j j j } t | f | | j � | _ | d k r} t | f | d | j � | _ n d | _ d S( Nt ARRAY( t subtype_oidt _create_rangest adapterRF R R R t parset typecasterR R t array_typecaster( R R6 R7 t oidRM t array_oidRF ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR � s c C s0 d | _ t | t � r? t | t f i � | _ | | j _ n? y+ t | t � ri | t k ri | | _ n Wn t k r} n X| j d k r� t d � � n d | _ yU t | t � r� t | t f i � | _ n t | t � r� | t k r� | | _ n Wn t k r n X| j d k r,t d � � n d S( s0 Create Range and RangeAdapter classes if needed.s: pgrange must be a string or a RangeAdapter strict subclasss1 pyrange must be a type or a Range strict subclassN( R RO R$ t basestringt typeR< RF t issubclassR* t rangeR ( R R6 R7 ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyRN � s. c C sP d d l m } d d l m } | | � \ } } | j d k rW t d | j � � n | j } d | k r� | j d d � \ } } n | } d } y | j d | | f � Wn* t k r� | j s� | j � n � n0 X| j � } | | k r | j r | j � n | s"t d | � � n | \ } } } t | | d | d | d | �S( s| Return a `RangeCaster` instance for the type *pgrange*. Raise `ProgrammingError` if the type is not found. i����( t STATUS_IN_TRANSACTION( t _solve_conn_cursiX` s' range types not available in version %st .i t publics� select rngtypid, rngsubtype, (select typarray from pg_type where oid = rngtypid) from pg_range r join pg_type t on t.oid = rngtypid join pg_namespace ns on ns.oid = typnamespace where typname = %s and ns.nspname = %s; s PostgreSQL type '%s' not foundRS RM RT ( t psycopg2.extensionsRY t psycopg2.extrasRZ t server_versionR t statust splitt executet autocommitt rollbackt fetchoneR3 ( R RF R7 R8 RY RZ RB t curst conn_statust schemat tnamet recRV t subtypet array( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR4 s8 s] ( \(|\[ ) # lower bound flag (?: # lower bound: " ( (?: [^"] | "")* ) " # - a quoted string | ( [^",]+ ) # - or an unquoted string )? # - or empty (not catched) , (?: # upper bound: " ( (?: [^"] | "")* ) " # - a quoted string | ( [^"\)\]]+ ) # - or an unquoted string )? # - or empty (not catched) ( \)|\] ) # upper bound flag s (["\\])\1c C sc | d k r d S| d k r, | j d t � S| j j | � } | d k rY t d � � n | j d � } | d k r� | j d � } | d k r� | j j d | � } q� n | j d � } | d k r� | j d � } | d k r� | j j d | � } q� n | d k r4| j | j | � } | j | j | � } n | j d � | j d � } | j | | | � S( NR s failed to parse range: %si i s \1i i i i ( R RX R t _re_ranget matchR t groupt _re_undoublet subt castRM ( R t st curt mR R R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyRP ^ s, c C sI t | j | � | j d k r2 t | j | � n t | j | j � d S( N( R RQ RR R R RX RO ( R t scope( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR5 } s N( R R, R- R R RN t classmethodR4 t ret compilet VERBOSERm Rp RP R5 ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR3 � s "8 t NumericRangec B s e Z d Z RS( s� A `Range` suitable to pass Python numeric types to a PostgreSQL range. PostgreSQL types :sql:`int4range`, :sql:`int8range`, :sql:`numrange` are casted into `!NumericRange` instances. ( R R, R- ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR{ � s t DateRangec B s e Z d Z RS( s# Represents :sql:`daterange` values.( R R, R- ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR| � s t DateTimeRangec B s e Z d Z RS( s! Represents :sql:`tsrange` values.( R R, R- ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR} � s t DateTimeTZRangec B s e Z d Z RS( s# Represents :sql:`tstzrange` values.( R R, R- ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR~ � s t NumberRangeAdapterc B s e Z d Z d � Z RS( s1 Adapt a range if the subtype doesn't need quotes.c C s� | j } | j r t d � S| j sF t | j � j � j d � } n d } | j sv t | j � j � j d � } n d } d | j d | | | j d f j d � S( Ns 'empty't asciit s '%s%s,%s%s'i i ( R= R R R R R RI t decodeR R R t encode( R RJ R R ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyRI � s ! !( R R, R- RI ( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyR � s RS i@ RM i RT iA iV i iW iB i� iC t daterangeiH i: iI t tsrangeiD iZ iE t tstzrangeiF i� iG ( R- Rx t psycopg2._psycopgR R R] R R R R R R R t objectR R R; R< R3 R{ R| R} R~ R t int4range_casterR5 t int8range_castert numrange_castert daterange_castert tsrange_castert tstzrange_caster( ( ( s5 /usr/lib64/python2.7/site-packages/psycopg2/_range.pyt <module> s@ " o 0�