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537 lines
10 KiB
Python
537 lines
10 KiB
Python
"""
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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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__author__ = "Hugo Mercier"
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__date__ = "December 2015"
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__copyright__ = "(C) 2015, Hugo Mercier"
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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",
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"add",
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"after",
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"all",
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"alter",
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"analyze",
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"and",
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"as",
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"asc",
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"before",
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"begin",
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"between",
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"by",
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"cascade",
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"case",
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"cast",
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"check",
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"collate",
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"column",
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"commit",
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"constraint",
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"create",
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"cross",
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"current_date",
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"current_time",
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"current_timestamp",
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"default",
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"deferrable",
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"deferred",
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"delete",
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"desc",
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"distinct",
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"drop",
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"each",
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"else",
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"end",
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"escape",
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"except",
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"exists",
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"for",
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"foreign",
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"from",
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"full",
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"group",
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"having",
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"ignore",
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"immediate",
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"in",
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"initially",
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"inner",
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"insert",
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"intersect",
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"into",
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"is",
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"isnull",
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"join",
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"key",
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"left",
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"like",
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"limit",
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"match",
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"natural",
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"no",
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"not",
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"notnull",
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"null",
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"of",
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"offset",
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"on",
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"or",
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"order",
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"outer",
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"primary",
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"references",
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"release",
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"restrict",
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"right",
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"rollback",
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"row",
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"savepoint",
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"select",
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"set",
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"table",
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"temporary",
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"then",
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"to",
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"transaction",
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"trigger",
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"union",
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"unique",
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"update",
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"using",
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"values",
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"view",
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"when",
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"where",
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"abort",
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"attach",
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"autoincrement",
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"conflict",
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"database",
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"detach",
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"exclusive",
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"explain",
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"fail",
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"glob",
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"if",
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"index",
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"indexed",
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"instead",
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"plan",
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"pragma",
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"query",
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"raise",
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"regexp",
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"reindex",
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"rename",
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"replace",
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"temp",
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"vacuum",
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"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",
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"coalesce",
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"glob",
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"ifnull",
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"hex",
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"last_insert_rowid",
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"nullif",
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"quote",
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"random",
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"randomblob",
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"replace",
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"round",
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"soundex",
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"total_change",
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"typeof",
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"zeroblob",
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"date",
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"datetime",
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"julianday",
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"strftime",
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]
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operators = [
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" AND ",
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" OR ",
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"||",
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" < ",
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" <= ",
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" > ",
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" >= ",
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" = ",
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" <> ",
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" IS ",
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" IS NOT ",
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" IN ",
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" LIKE ",
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" GLOB ",
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" MATCH ",
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" REGEXP ",
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]
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math_functions = [
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# SQL math functions
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"Abs",
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"ACos",
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"ASin",
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"ATan",
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"Cos",
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"Cot",
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"Degrees",
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"Exp",
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"Floor",
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"Log",
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"Log2",
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"Log10",
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"Pi",
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"Radians",
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"Round",
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"Sign",
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"Sin",
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"Sqrt",
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"StdDev_Pop",
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"StdDev_Samp",
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"Tan",
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"Var_Pop",
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"Var_Samp",
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]
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string_functions = [
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"Length",
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"Lower",
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"Upper",
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"Like",
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"Trim",
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"LTrim",
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"RTrim",
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"Replace",
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"Substr",
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]
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aggregate_functions = [
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"Max",
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"Min",
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"Avg",
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"Count",
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"Sum",
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"Group_Concat",
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"Total",
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"Var_Pop",
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"Var_Samp",
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"StdDev_Pop",
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"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",
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"*ispdfblob",
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"*isgifblob",
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"*ispngblob",
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"*isjpegblob",
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"*isexifblob",
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"*isexifgpsblob",
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"*geomfromexifgpsblob",
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"MakePoint",
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"BuildMbr",
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"*buildcirclembr",
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"ST_MinX",
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"ST_MinY",
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"ST_MaxX",
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"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",
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"*pointfromtext",
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# SQL functions for constructing a geometric object given its Well-known Binary Representation
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"*geomfromwkb",
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"*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",
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"ST_AsBinary",
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# SQL functions supporting exotic geometric formats
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"*assvg",
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"*asfgf",
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"*geomfromfgf",
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# SQL functions on type Geometry
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"ST_Dimension",
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"ST_GeometryType",
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"ST_Srid",
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"ST_SetSrid",
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"ST_isEmpty",
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"ST_isSimple",
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"ST_isValid",
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"ST_Boundary",
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"ST_Envelope",
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# SQL functions on type Point
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"ST_X",
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"ST_Y",
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# SQL functions on type Curve [Linestring or Ring]
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"ST_StartPoint",
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"ST_EndPoint",
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"ST_Length",
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"ST_isClosed",
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"ST_isRing",
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"ST_Simplify",
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"*simplifypreservetopology",
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# SQL functions on type LineString
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"ST_NumPoints",
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"ST_PointN",
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# SQL functions on type Surface [Polygon or Ring]
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"ST_Centroid",
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"ST_PointOnSurface",
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"ST_Area",
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# SQL functions on type Polygon
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"ST_ExteriorRing",
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"ST_InteriorRingN",
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# SQL functions on type GeomCollection
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"ST_NumGeometries",
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"ST_GeometryN",
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# SQL functions that test approximative spatial relationships via MBRs
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"MbrEqual",
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"MbrDisjoint",
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"MbrTouches",
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"MbrWithin",
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"MbrOverlaps",
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"MbrIntersects",
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"MbrContains",
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# SQL functions that test spatial relationships
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"ST_Equals",
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"ST_Disjoint",
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"ST_Touches",
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"ST_Within",
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"ST_Overlaps",
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"ST_Crosses",
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"ST_Intersects",
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"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",
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"ST_Difference",
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"ST_Union",
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"ST_SymDifference",
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"ST_Buffer",
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"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",
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"*addgeometrycolumn",
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"*recovergeometrycolumn",
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"*discardgeometrycolumn",
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"*createspatialindex",
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"*creatembrcache",
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"*disablespatialindex",
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# SQL functions implementing FDO/OGR compatibility
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"*checkspatialmetadata",
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"*autofdostart",
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"*autofdostop",
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"*initfdospatialmetadata",
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"*addfdogeometrycolumn",
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"*recoverfdogeometrycolumn",
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"*discardfdogeometrycolumn",
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# SQL functions for MbrCache-based queries
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"*filtermbrwithin",
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"*filtermbrcontains",
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"*filtermbrintersects",
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"*buildmbrfilter",
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]
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qgis_functions = [
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"atan2",
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"round",
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"rand",
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"randf",
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"clamp",
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"scale_linear",
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"scale_polynomial",
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"scale_exponential",
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"_pi",
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"to_int",
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"toint",
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"to_real",
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"toreal",
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"to_string",
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"tostring",
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"to_datetime",
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"todatetime",
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"to_date",
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"todate",
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"to_time",
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"totime",
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"to_interval",
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"tointerval",
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"regexp_match",
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"now",
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"_now",
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"age",
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"year",
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"month",
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"week",
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"day",
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"hour",
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"minute",
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"second",
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"day_of_week",
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"title",
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"levenshtein",
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"longest_common_substring",
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"hamming_distance",
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"wordwrap",
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"regexp_replace",
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"regexp_substr",
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"concat",
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"strpos",
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"_left",
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"_right",
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"rpad",
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"lpad",
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"format",
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"format_number",
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"format_date",
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"color_rgb",
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"color_rgba",
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"color_rgbf",
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"ramp_color",
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"ramp_color_object",
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"color_hsl",
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"color_hsla",
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"color_hslf",
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"color_hsv",
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"color_hsva",
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"color_hsvf",
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"color_cmyk",
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"color_cmyka",
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"color_cmykf",
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"color_part",
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"darker",
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"lighter",
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"set_color_part",
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"point_n",
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"start_point",
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"end_point",
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"nodes_to_points",
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"segments_to_lines",
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"make_point",
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"make_point_m",
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"make_line",
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"make_polygon",
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"x_min",
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"xmin",
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"x_max",
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"xmax",
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"y_min",
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"ymin",
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"y_max",
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"ymax",
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"geom_from_wkt",
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"geomFromWKT",
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"geom_from_gml",
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"relate",
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"intersects_bbox",
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"bbox",
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"translate",
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"buffer",
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"point_on_surface",
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"reverse",
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"exterior_ring",
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"interior_ring_n",
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"geometry_n",
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"bounds",
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"num_points",
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"num_interior_rings",
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"num_rings",
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"num_geometries",
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"bounds_width",
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"bounds_height",
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"is_closed",
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"convex_hull",
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"sym_difference",
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"combine",
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"_union",
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"geom_to_wkt",
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"geomToWKT",
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"transform",
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"uuid",
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"_uuid",
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"layer_property",
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"var",
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"_specialcol_",
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"project_color",
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"project_color_object",
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]
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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 {
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"keyword": list(map(strip_star, k)),
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"constant": list(map(strip_star, c)),
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"function": list(map(strip_star, f)),
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}
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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(
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add_paren(
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ff(
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list(
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set.union(
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set(functions), set(spatialite_functions), set(qgis_functions)
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)
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)
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)
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)
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)
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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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