QGIS/python/plugins/processing/algs/gdal/ogr2ogrtopostgislist.py
Nyall Dawson 5fab46f41c [processing][needs-docs] Refine names for 'Import into PostGIS' algs
Renames the existing algorithms for clarity and consistency
to the format 'Export to PostgreSQL...'. Add tags so that they
still show when searching for the old names, and add descriptions
to make their use more obvious from the toolbox.

Fixes #19658
2018-08-21 16:00:18 +10:00

320 lines
15 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
ogr2ogrtopostgislist.py
---------------------
Date : November 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail 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__ = 'Victor Olaya'
__date__ = 'November 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from qgis.core import (QgsProcessingParameterFeatureSource,
QgsProcessingParameterString,
QgsProcessingParameterEnum,
QgsProcessingParameterCrs,
QgsProcessingParameterField,
QgsProcessingParameterExtent,
QgsProcessingParameterBoolean)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
from processing.tools.postgis import uri_from_name, GeoDB
from processing.tools.system import isWindows
class Ogr2OgrToPostGisList(GdalAlgorithm):
DATABASE = 'DATABASE'
INPUT = 'INPUT'
SHAPE_ENCODING = 'SHAPE_ENCODING'
GTYPE = 'GTYPE'
GEOMTYPE = ['', 'NONE', 'GEOMETRY', 'POINT', 'LINESTRING', 'POLYGON', 'GEOMETRYCOLLECTION', 'MULTIPOINT', 'MULTIPOLYGON', 'MULTILINESTRING']
S_SRS = 'S_SRS'
T_SRS = 'T_SRS'
A_SRS = 'A_SRS'
HOST = 'HOST'
PORT = 'PORT'
USER = 'USER'
DBNAME = 'DBNAME'
PASSWORD = 'PASSWORD'
SCHEMA = 'SCHEMA'
TABLE = 'TABLE'
PK = 'PK'
PRIMARY_KEY = 'PRIMARY_KEY'
GEOCOLUMN = 'GEOCOLUMN'
DIM = 'DIM'
DIMLIST = ['2', '3']
SIMPLIFY = 'SIMPLIFY'
SEGMENTIZE = 'SEGMENTIZE'
SPAT = 'SPAT'
CLIP = 'CLIP'
WHERE = 'WHERE'
GT = 'GT'
OVERWRITE = 'OVERWRITE'
APPEND = 'APPEND'
ADDFIELDS = 'ADDFIELDS'
LAUNDER = 'LAUNDER'
INDEX = 'INDEX'
SKIPFAILURES = 'SKIPFAILURES'
PRECISION = 'PRECISION'
PROMOTETOMULTI = 'PROMOTETOMULTI'
OPTIONS = 'OPTIONS'
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
db_param = QgsProcessingParameterString(
self.DATABASE,
self.tr('Database (connection name)'))
db_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}})
self.addParameter(db_param)
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Input layer')))
self.addParameter(QgsProcessingParameterString(self.SHAPE_ENCODING,
self.tr('Shape encoding'), "", optional=True))
self.addParameter(QgsProcessingParameterEnum(self.GTYPE,
self.tr('Output geometry type'), options=self.GEOMTYPE, defaultValue=0))
self.addParameter(QgsProcessingParameterCrs(self.A_SRS,
self.tr('Assign an output CRS'), defaultValue='', optional=False))
self.addParameter(QgsProcessingParameterCrs(self.T_SRS,
self.tr('Reproject to this CRS on output '), defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterCrs(self.S_SRS,
self.tr('Override source CRS'), defaultValue='', optional=True))
schema_param = QgsProcessingParameterString(
self.SCHEMA,
self.tr('Schema (schema name)'), 'public', False, True)
schema_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.SchemaWidgetWrapper',
'connection_param': self.DATABASE}})
self.addParameter(schema_param)
table_param = QgsProcessingParameterString(
self.TABLE,
self.tr('Table to import to (leave blank to use layer name)'), '', False, True)
table_param.setMetadata({
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.TableWidgetWrapper',
'schema_param': self.SCHEMA}})
self.addParameter(table_param)
self.addParameter(QgsProcessingParameterString(self.PK,
self.tr('Primary key (new field)'), defaultValue='id', optional=True))
self.addParameter(QgsProcessingParameterField(self.PRIMARY_KEY,
self.tr('Primary key (existing field, used if the above option is left empty)'), parentLayerParameterName=self.INPUT, optional=True))
self.addParameter(QgsProcessingParameterString(self.GEOCOLUMN,
self.tr('Geometry column name'), defaultValue='geom', optional=True))
self.addParameter(QgsProcessingParameterEnum(self.DIM,
self.tr('Vector dimensions'), options=self.DIMLIST, defaultValue=0))
self.addParameter(QgsProcessingParameterString(self.SIMPLIFY,
self.tr('Distance tolerance for simplification'),
defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterString(self.SEGMENTIZE,
self.tr('Maximum distance between 2 nodes (densification)'),
defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterExtent(self.SPAT,
self.tr('Select features by extent (defined in input layer CRS)'), optional=True))
self.addParameter(QgsProcessingParameterBoolean(self.CLIP,
self.tr('Clip the input layer using the above (rectangle) extent'),
defaultValue=False))
self.addParameter(QgsProcessingParameterString(self.WHERE,
self.tr('Select features using a SQL "WHERE" statement (Ex: column=\'value\')'),
defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterString(self.GT,
self.tr('Group N features per transaction (Default: 20000)'),
defaultValue='', optional=True))
self.addParameter(QgsProcessingParameterBoolean(self.OVERWRITE,
self.tr('Overwrite existing table'), defaultValue=True))
self.addParameter(QgsProcessingParameterBoolean(self.APPEND,
self.tr('Append to existing table'), defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.ADDFIELDS,
self.tr('Append and add new fields to existing table'), defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.LAUNDER,
self.tr('Do not launder columns/table names'), defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.INDEX,
self.tr('Do not create spatial index'), defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.SKIPFAILURES,
self.tr('Continue after a failure, skipping the failed feature'), defaultValue=False))
self.addParameter(QgsProcessingParameterBoolean(self.PROMOTETOMULTI,
self.tr('Promote to Multipart'),
defaultValue=True))
self.addParameter(QgsProcessingParameterBoolean(self.PRECISION,
self.tr('Keep width and precision of input attributes'),
defaultValue=True))
self.addParameter(QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation options'), defaultValue='', optional=True))
def name(self):
return 'importvectorintopostgisdatabaseavailableconnections'
def displayName(self):
return self.tr('Export to PostgreSQL (available connections)')
def shortDescription(self):
return self.tr('Exports a vector layer to an existing PostgreSQL database connection')
def tags(self):
t = self.tr('import,into,postgis,database,vector').split(',')
t.extend(super().tags())
return t
def group(self):
return self.tr('Vector miscellaneous')
def groupId(self):
return 'vectormiscellaneous'
def getConsoleCommands(self, parameters, context, feedback, executing=True):
connection = self.parameterAsString(parameters, self.DATABASE, context)
uri = uri_from_name(connection)
if executing:
# to get credentials input when needed
uri = GeoDB(uri=uri).uri
ogrLayer, layername = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
shapeEncoding = self.parameterAsString(parameters, self.SHAPE_ENCODING, context)
ssrs = self.parameterAsCrs(parameters, self.S_SRS, context)
tsrs = self.parameterAsCrs(parameters, self.T_SRS, context)
asrs = self.parameterAsCrs(parameters, self.A_SRS, context)
table = self.parameterAsString(parameters, self.TABLE, context)
schema = self.parameterAsString(parameters, self.SCHEMA, context)
pk = self.parameterAsString(parameters, self.PK, context)
pkstring = "-lco FID=" + pk
primary_key = self.parameterAsString(parameters, self.PRIMARY_KEY, context)
geocolumn = self.parameterAsString(parameters, self.GEOCOLUMN, context)
geocolumnstring = "-lco GEOMETRY_NAME=" + geocolumn
dim = self.DIMLIST[self.parameterAsEnum(parameters, self.DIM, context)]
dimstring = "-lco DIM=" + dim
simplify = self.parameterAsString(parameters, self.SIMPLIFY, context)
segmentize = self.parameterAsString(parameters, self.SEGMENTIZE, context)
spat = self.parameterAsExtent(parameters, self.SPAT, context)
clip = self.parameterAsBool(parameters, self.CLIP, context)
where = self.parameterAsString(parameters, self.WHERE, context)
wherestring = '-where "' + where + '"'
gt = self.parameterAsString(parameters, self.GT, context)
overwrite = self.parameterAsBool(parameters, self.OVERWRITE, context)
append = self.parameterAsBool(parameters, self.APPEND, context)
addfields = self.parameterAsBool(parameters, self.ADDFIELDS, context)
launder = self.parameterAsBool(parameters, self.LAUNDER, context)
launderstring = "-lco LAUNDER=NO"
index = self.parameterAsBool(parameters, self.INDEX, context)
indexstring = "-lco SPATIAL_INDEX=OFF"
skipfailures = self.parameterAsBool(parameters, self.SKIPFAILURES, context)
promotetomulti = self.parameterAsBool(parameters, self.PROMOTETOMULTI, context)
precision = self.parameterAsBool(parameters, self.PRECISION, context)
options = self.parameterAsString(parameters, self.OPTIONS, context)
arguments = []
arguments.append('-progress')
arguments.append('--config PG_USE_COPY YES')
if shapeEncoding:
arguments.append('--config')
arguments.append('SHAPE_ENCODING')
arguments.append('"' + shapeEncoding + '"')
arguments.append('-f')
arguments.append('PostgreSQL')
arguments.append('PG:"')
for token in uri.connectionInfo(executing).split(' '):
arguments.append(token)
arguments.append('active_schema={}'.format(schema or 'public'))
arguments.append('"')
arguments.append(dimstring)
arguments.append(ogrLayer)
arguments.append(layername)
if index:
arguments.append(indexstring)
if launder:
arguments.append(launderstring)
if append:
arguments.append('-append')
if addfields:
arguments.append('-addfields')
if overwrite:
arguments.append('-overwrite')
if len(self.GEOMTYPE[self.parameterAsEnum(parameters, self.GTYPE, context)]) > 0:
arguments.append('-nlt')
arguments.append(self.GEOMTYPE[self.parameterAsEnum(parameters, self.GTYPE, context)])
if len(geocolumn) > 0:
arguments.append(geocolumnstring)
if len(pk) > 0:
arguments.append(pkstring)
elif primary_key is not None:
arguments.append("-lco FID=" + primary_key)
if len(table) == 0:
table = layername.lower()
if schema:
table = '{}.{}'.format(schema, table)
arguments.append('-nln')
arguments.append(table)
if ssrs.isValid():
arguments.append('-s_srs')
arguments.append(GdalUtils.gdal_crs_string(ssrs))
if tsrs.isValid():
arguments.append('-t_srs')
arguments.append(GdalUtils.gdal_crs_string(tsrs))
if asrs.isValid():
arguments.append('-a_srs')
arguments.append(GdalUtils.gdal_crs_string(asrs))
if not spat.isNull():
arguments.append('-spat')
arguments.append(spat.xMinimum())
arguments.append(spat.yMinimum())
arguments.append(spat.xMaximum())
arguments.append(spat.yMaximum())
if clip:
arguments.append('-clipsrc spat_extent')
if skipfailures:
arguments.append('-skipfailures')
if where:
arguments.append(wherestring)
if len(simplify) > 0:
arguments.append('-simplify')
arguments.append(simplify)
if len(segmentize) > 0:
arguments.append('-segmentize')
arguments.append(segmentize)
if len(gt) > 0:
arguments.append('-gt')
arguments.append(gt)
if promotetomulti:
arguments.append('-nlt PROMOTE_TO_MULTI')
if precision is False:
arguments.append('-lco PRECISION=NO')
if len(options) > 0:
arguments.append(options)
commands = []
if isWindows():
commands = ['cmd.exe', '/C ', 'ogr2ogr.exe',
GdalUtils.escapeAndJoin(arguments)]
else:
commands = ['ogr2ogr', GdalUtils.escapeAndJoin(arguments)]
return commands
def commandName(self):
return "ogr2ogr"