QGIS API Documentation 3.34.0-Prizren (ffbdd678812)
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qgsdatabaseschemaitem.cpp
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1/***************************************************************************
2 qgsdatabaseschemaitem.cpp
3 -------------------
4 begin : 2011-04-01
5 copyright : (C) 2011 Radim Blazek
6 email : radim dot blazek at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
19#include "qgsapplication.h"
21#include "qgsprovidermetadata.h"
22#include "qgsproviderregistry.h"
24
25QgsDatabaseSchemaItem::QgsDatabaseSchemaItem( QgsDataItem *parent, const QString &name, const QString &path, const QString &providerKey )
26 : QgsDataCollectionItem( parent, name, path, providerKey )
27{
28
29}
30
35
37{
38 return QgsApplication::getThemeIcon( QStringLiteral( "/mIconDbSchema.svg" ) );
39}
40
42{
43 const QString dataProviderKey { QgsApplication::dataItemProviderRegistry()->dataProviderKey( providerKey() ) };
45 if ( ! md )
46 {
47 return nullptr;
48 }
49 const QString connectionName { parent()->name() };
50 try
51 {
52 return static_cast<QgsAbstractDatabaseProviderConnection *>( md->createConnection( connectionName ) );
53 }
55 {
56 // This is expected and it is not an error in case the provider does not implement
57 // the connections API
58 }
59 return nullptr;
60}
The QgsAbstractDatabaseProviderConnection class provides common functionality for DB based connection...
static QgsDataItemProviderRegistry * dataItemProviderRegistry()
Returns the application's data item provider registry, which keeps a list of data item providers that...
static QIcon getThemeIcon(const QString &name, const QColor &fillColor=QColor(), const QColor &strokeColor=QColor())
Helper to get a theme icon.
A Collection: logical collection of layers or subcollections, e.g.
QString dataProviderKey(const QString &dataItemProviderName)
Returns the (possibly blank) data provider key for a given data item provider name.
Base class for all items in the model.
Definition qgsdataitem.h:46
QString name() const
Returns the name of the item (the displayed text for the item).
QgsDataItem * parent() const
Gets item parent.
QString providerKey() const
Returns the provider key that created this item (e.g.
QgsDatabaseSchemaItem(QgsDataItem *parent, const QString &name, const QString &path=QString(), const QString &providerKey=QString())
Constructor for QgsDatabaseSchemaItem, with the specified parent item.
QgsAbstractDatabaseProviderConnection * databaseConnection() const override
For data items that represent a DB connection or one of its children, this method returns a connectio...
static QIcon iconDataCollection()
Returns the standard browser data collection icon.
Custom exception class for provider connection related exceptions.
Holds data provider key, description, and associated shared library file or function pointer informat...
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
QgsProviderMetadata * providerMetadata(const QString &providerKey) const
Returns metadata of the provider or nullptr if not found.