ó øĒTQc@s6dZdefd„ƒYZdefd„ƒYZdS(sL A collection of utility routines and classes used by the spatial backends. tSpatialOperationcBs;eZdZdZdddd„Zdd„Zd„ZRS(s0 Base class for generating spatial SQL. s%%(geo_col)s %(operator)s %(geometry)stcKs(||_||_||_||_dS(N(tfunctiontoperatortresulttextra(tselfRRRtkwargs((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyt__init__ s   s%scCs|j|j||ƒS(N(t sql_templatetparams(Rtgeo_coltgeometry((s<../Django//lib/python/django/contrib/gis/db/backends/util.pytas_sqlscCsFi|jd6|d6|d6|jd6|jd6}|j|jƒ|S(NRR R RR(RRRtupdateR(RR R R ((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyR s   (t__name__t __module__t__doc__R RR R (((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyRs  tSpatialFunctioncBs#eZdZdZddd„ZRS(sF Base class for generating spatial SQL related to a function. s'%(function)s(%(geo_col)s, %(geometry)s)RcKsBi|d6|d6|d6}|j|ƒtt|ƒj|dS(NRRR(RtsuperRR(RtfuncRRRtdefault((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyR%s    (RRRR R(((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyRsN(RtobjectRR(((s<../Django//lib/python/django/contrib/gis/db/backends/util.pyts