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# -*- coding: utf-8 -*-
"""
***************************************************************************
sql_dictionary.py
---------------------
Date : December 2015
Copyright : (C) 2015 by Hugo Mercier
Email : hugo dot mercier at oslandia dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Hugo Mercier'
__date__ = 'December 2015'
__copyright__ = '(C) 2015, Hugo Mercier'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
# keywords
keywords = [
# TODO get them from a reference page
"action", "add", "after", "all", "alter", "analyze", "and", "as", "asc",
"before", "begin", "between", "by", "cascade", "case", "cast", "check",
"collate", "column", "commit", "constraint", "create", "cross", "current_date",
"current_time", "current_timestamp", "default", "deferrable", "deferred",
"delete", "desc", "distinct", "drop", "each", "else", "end", "escape",
"except", "exists", "for", "foreign", "from", "full", "group", "having",
"ignore", "immediate", "in", "initially", "inner", "insert", "intersect",
"into", "is", "isnull", "join", "key", "left", "like", "limit", "match",
"natural", "no", "not", "notnull", "null", "of", "offset", "on", "or", "order",
"outer", "primary", "references", "release", "restrict", "right", "rollback",
"row", "savepoint", "select", "set", "table", "temporary", "then", "to",
"transaction", "trigger", "union", "unique", "update", "using", "values",
"view", "when", "where",
"abort", "attach", "autoincrement", "conflict", "database", "detach",
"exclusive", "explain", "fail", "glob", "if", "index", "indexed", "instead",
"plan", "pragma", "query", "raise", "regexp", "reindex", "rename", "replace",
"temp", "vacuum", "virtual"
]
spatialite_keywords = []
# functions
functions = [
# TODO get them from a reference page
"changes", "coalesce", "glob", "ifnull", "hex", "last_insert_rowid",
"nullif", "quote", "random",
"randomblob", "replace", "round", "soundex", "total_change",
"typeof", "zeroblob", "date", "datetime", "julianday", "strftime"
]
operators = [
' AND ', ' OR ', '||', ' < ', ' <= ', ' > ', ' >= ', ' = ', ' <> ', ' IS ', ' IS NOT ', ' IN ', ' LIKE ', ' GLOB ', ' MATCH ', ' REGEXP '
]
math_functions = [
# SQL math functions
"Abs", "ACos", "ASin", "ATan", "Cos", "Cot", "Degrees", "Exp", "Floor", "Log", "Log2",
"Log10", "Pi", "Radians", "Round", "Sign", "Sin", "Sqrt", "StdDev_Pop", "StdDev_Samp", "Tan",
"Var_Pop", "Var_Samp"]
string_functions = ["Length", "Lower", "Upper", "Like", "Trim", "LTrim", "RTrim", "Replace", "Substr"]
aggregate_functions = [
"Max", "Min", "Avg", "Count", "Sum", "Group_Concat", "Total", "Var_Pop", "Var_Samp", "StdDev_Pop", "StdDev_Samp"
]
spatialite_functions = [ # from www.gaia-gis.it/spatialite-2.3.0/spatialite-sql-2.3.0.html
# SQL utility functions for BLOB objects
"*iszipblob", "*ispdfblob", "*isgifblob", "*ispngblob", "*isjpegblob", "*isexifblob",
"*isexifgpsblob", "*geomfromexifgpsblob", "MakePoint", "BuildMbr", "*buildcirclembr", "ST_MinX",
"ST_MinY", "ST_MaxX", "ST_MaxY",
# SQL functions for constructing a geometric object given its Well-known Text Representation
"ST_GeomFromText", "*pointfromtext",
# SQL functions for constructing a geometric object given its Well-known Binary Representation
"*geomfromwkb", "*pointfromwkb",
# SQL functions for obtaining the Well-known Text / Well-known Binary Representation of a geometric object
"ST_AsText", "ST_AsBinary",
# SQL functions supporting exotic geometric formats
"*assvg", "*asfgf", "*geomfromfgf",
# SQL functions on type Geometry
"ST_Dimension", "ST_GeometryType", "ST_Srid", "ST_SetSrid", "ST_isEmpty", "ST_isSimple", "ST_isValid", "ST_Boundary",
"ST_Envelope",
# SQL functions on type Point
"ST_X", "ST_Y",
# SQL functions on type Curve [Linestring or Ring]
"ST_StartPoint", "ST_EndPoint", "ST_Length", "ST_isClosed", "ST_isRing", "ST_Simplify",
"*simplifypreservetopology",
# SQL functions on type LineString
"ST_NumPoints", "ST_PointN",
# SQL functions on type Surface [Polygon or Ring]
"ST_Centroid", "ST_PointOnSurface", "ST_Area",
# SQL functions on type Polygon
"ST_ExteriorRing", "ST_InteriorRingN",
# SQL functions on type GeomCollection
"ST_NumGeometries", "ST_GeometryN",
# SQL functions that test approximative spatial relationships via MBRs
"MbrEqual", "MbrDisjoint", "MbrTouches", "MbrWithin", "MbrOverlaps", "MbrIntersects",
"MbrContains",
# SQL functions that test spatial relationships
"ST_Equals", "ST_Disjoint", "ST_Touches", "ST_Within", "ST_Overlaps", "ST_Crosses", "ST_Intersects", "ST_Contains",
"ST_Relate",
# SQL functions for distance relationships
"ST_Distance",
# SQL functions that implement spatial operators
"ST_Intersection", "ST_Difference", "ST_Union", "ST_SymDifference", "ST_Buffer", "ST_ConvexHull",
# SQL functions for coordinate transformations
"ST_Transform",
# SQL functions for Spatial-MetaData and Spatial-Index handling
"*initspatialmetadata", "*addgeometrycolumn", "*recovergeometrycolumn", "*discardgeometrycolumn",
"*createspatialindex", "*creatembrcache", "*disablespatialindex",
# SQL functions implementing FDO/OGR compatibily
"*checkspatialmetadata", "*autofdostart", "*autofdostop", "*initfdospatialmetadata",
"*addfdogeometrycolumn", "*recoverfdogeometrycolumn", "*discardfdogeometrycolumn",
# SQL functions for MbrCache-based queries
"*filtermbrwithin", "*filtermbrcontains", "*filtermbrintersects", "*buildmbrfilter"
]
qgis_functions = [
"atan2", "round", "rand", "randf", "clamp", "scale_linear", "scale_exp", "_pi", "to_int", "toint", "to_real", "toreal",
"to_string", "tostring", "to_datetime", "todatetime", "to_date", "todate", "to_time", "totime", "to_interval", "tointerval",
"regexp_match", "now", "_now", "age", "year", "month", "week", "day", "hour", "minute", "second", "day_of_week", "title",
"levenshtein", "longest_common_substring", "hamming_distance", "wordwrap", "regexp_replace", "regexp_substr", "concat",
"strpos", "_left", "_right", "rpad", "lpad", "format", "format_number", "format_date", "color_rgb", "color_rgba", "ramp_color",
"color_hsl", "color_hsla", "color_hsv", "color_hsva", "color_cmyk", "color_cmyka", "color_part", "darker", "lighter",
"set_color_part", "point_n", "start_point", "end_point", "nodes_to_points", "segments_to_lines", "make_point",
"make_point_m", "make_line", "make_polygon", "x_min", "xmin", "x_max", "xmax", "y_min", "ymin", "y_max", "ymax", "geom_from_wkt",
"geomFromWKT", "geom_from_gml", "relate", "intersects_bbox", "bbox", "translate", "buffer", "point_on_surface", "reverse",
"exterior_ring", "interior_ring_n", "geometry_n", "bounds", "num_points", "num_interior_rings", "num_rings", "num_geometries",
"bounds_width", "bounds_height", "is_closed", "convex_hull", "sym_difference", "combine", "_union", "geom_to_wkt", "geomToWKT",
"transform", "uuid", "_uuid", "layer_property", "var", "_specialcol_", "project_color"]
# constants
constants = ["null", "false", "true"]
spatialite_constants = []
def getSqlDictionary(spatial=True):
def strip_star(s):
if s[0] == '*':
return s.lower()[1:]
else:
return s.lower()
k, c, f = list(keywords), list(constants), list(functions)
if spatial:
k += spatialite_keywords
f += spatialite_functions
f += qgis_functions
c += spatialite_constants
return {'keyword': map(strip_star, k), 'constant': map(strip_star, c), 'function': map(strip_star, f)}
def getQueryBuilderDictionary():
# concat functions
def ff(l):
return [s for s in l if s[0] != '*']
def add_paren(l):
return [s + "(" for s in l]
foo = sorted(add_paren(ff(list(set.union(set(functions), set(spatialite_functions), set(qgis_functions))))))
m = sorted(add_paren(ff(math_functions)))
agg = sorted(add_paren(ff(aggregate_functions)))
op = ff(operators)
s = sorted(add_paren(ff(string_functions)))
return {'function': foo, 'math': m, 'aggregate': agg, 'operator': op, 'string': s}
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