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"""
/***************************************************************************
Name : DB Manager
Description : Database manager plugin for QGIS
Date : May 23, 2011
copyright : (C) 2011 by Giuseppe Sucameli
email : brush.tyler@gmail.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. *
* *
***************************************************************************/
"""
from qgis.core import QgsMessageLog
from ..data_model import (
TableDataModel,
SqlResultModel,
SqlResultModelAsync,
SqlResultModelTask,
)
from ..plugin import BaseError
class GPKGTableDataModel(TableDataModel):
def __init__(self, table, parent=None):
TableDataModel.__init__(self, table, parent)
# fields_txt = ", ".join(self.fields)
# table_txt = self.db.quoteId((self.table.schemaName(), self.table.name))
# run query and get results
# sql = "SELECT %s FROM %s" % (fields_txt, table_txt)
# self.resdata = self.db._fetchAll(sql, include_fid_and_geometry = True)
self.resdata = self.db._fetchAllFromLayer(table)
self.fetchedFrom = 0
self.fetchedCount = len(self.resdata)
def _sanitizeTableField(self, field):
return self.db.quoteId(field.name)
def rowCount(self, index=None):
return self.fetchedCount
class GPKGSqlResultModelTask(SqlResultModelTask):
def __init__(self, db, sql, parent):
super().__init__(db, sql, parent)
def run(self):
try:
self.model = GPKGSqlResultModel(self.db, self.sql, None)
except BaseError as e:
self.error = e
QgsMessageLog.logMessage(e.msg)
return False
return True
def cancel(self):
self.db.connector.cancel()
SqlResultModelTask.cancel(self)
class GPKGSqlResultModelAsync(SqlResultModelAsync):
def __init__(self, db, sql, parent):
super().__init__()
self.task = GPKGSqlResultModelTask(db, sql, parent)
self.task.taskCompleted.connect(self.modelDone)
self.task.taskTerminated.connect(self.modelDone)
class GPKGSqlResultModel(SqlResultModel):
pass
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