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