本文整理汇总了Python中qgis.gui.QgsRelationWidgetWrapper类的典型用法代码示例。如果您正苦于以下问题:Python QgsRelationWidgetWrapper类的具体用法?Python QgsRelationWidgetWrapper怎么用?Python QgsRelationWidgetWrapper使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了QgsRelationWidgetWrapper类的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: createWrapper
def createWrapper(self, layer, filter=None):
"""
Basic setup of a relation widget wrapper.
Will create a new wrapper and set its feature to the one and only book
in the table.
It will also assign some instance variables to help
* self.widget The created widget
* self.table_view The table view of the widget
:return: The created wrapper
"""
if layer == self.vl_b:
relation = self.rel_b
nmrel = self.rel_a
else:
relation = self.rel_a
nmrel = self.rel_b
parent = QWidget()
self.wrapper = QgsRelationWidgetWrapper(layer, relation)
self.wrapper.setConfig({'nm-rel': nmrel.id()})
context = QgsAttributeEditorContext()
context.setVectorLayerTools(self.vltools)
self.wrapper.setContext(context)
self.widget = self.wrapper.widget()
self.widget.show()
request = QgsFeatureRequest()
if filter:
request.setFilterExpression(filter)
book = layer.getFeatures(request).next()
self.wrapper.setFeature(book)
self.table_view = self.widget.findChild(QTableView)
return self.wrapper
开发者ID:barianet,项目名称:QGIS,代码行数:37,代码来源:test_qgsrelationeditwidget.py
示例2: TestQgsRelationEditWidget
#.........这里部分代码省略.........
self.widget.featureSelectionManager().select([f.id() for f in it])
self.assertEqual(2, self.widget.featureSelectionManager().selectedFeatureCount())
btn = self.widget.findChild(QToolButton, 'mUnlinkFeatureButton')
btn.click()
# This is actually more checking that the database on delete action is properly set on the relation
self.assertEqual(2, len([f for f in self.vl_link.getFeatures()]))
self.assertEqual(2, self.table_view.model().rowCount())
def test_discover_relations(self):
"""
Test the automatic discovery of relations
"""
relations = self.relMgr.discoverRelations([], [self.vl_a, self.vl_b, self.vl_link])
relations = {r.name(): r for r in relations}
self.assertEqual({'books_authors_fk_book_fkey', 'books_authors_fk_author_fkey'}, set(relations.keys()))
ba2b = relations['books_authors_fk_book_fkey']
self.assertTrue(ba2b.isValid())
self.assertEqual('books_authors', ba2b.referencingLayer().name())
self.assertEqual('books', ba2b.referencedLayer().name())
self.assertEqual([0], ba2b.referencingFields())
self.assertEqual([0], ba2b.referencedFields())
ba2a = relations['books_authors_fk_author_fkey']
self.assertTrue(ba2a.isValid())
self.assertEqual('books_authors', ba2a.referencingLayer().name())
self.assertEqual('authors', ba2a.referencedLayer().name())
self.assertEqual([1], ba2a.referencingFields())
self.assertEqual([0], ba2a.referencedFields())
self.assertEqual([], self.relMgr.discoverRelations([self.rel_a, self.rel_b], [self.vl_a, self.vl_b, self.vl_link]))
self.assertEqual(1, len(self.relMgr.discoverRelations([], [self.vl_a, self.vl_link])))
def startTransaction(self):
"""
Start a new transaction and set all layers into transaction mode.
:return: None
"""
lyrs = [self.vl_a, self.vl_b, self.vl_link]
self.transaction = QgsTransaction.create(lyrs)
self.transaction.begin()
for l in lyrs:
l.startEditing()
def rollbackTransaction(self):
"""
Rollback all changes done in this transaction.
We always rollback and never commit to have the database in a pristine
state at the end of each test.
:return: None
"""
lyrs = [self.vl_a, self.vl_b, self.vl_link]
for l in lyrs:
l.commitChanges()
self.transaction.rollback()
def createWrapper(self, layer, filter=None):
"""
Basic setup of a relation widget wrapper.
Will create a new wrapper and set its feature to the one and only book
in the table.
It will also assign some instance variables to help
* self.widget The created widget
* self.table_view The table view of the widget
:return: The created wrapper
"""
if layer == self.vl_b:
relation = self.rel_b
nmrel = self.rel_a
else:
relation = self.rel_a
nmrel = self.rel_b
self.wrapper = QgsRelationWidgetWrapper(layer, relation)
self.wrapper.setConfig({'nm-rel': nmrel.id()})
context = QgsAttributeEditorContext()
context.setVectorLayerTools(self.vltools)
self.wrapper.setContext(context)
self.widget = self.wrapper.widget()
self.widget.show()
request = QgsFeatureRequest()
if filter:
request.setFilterExpression(filter)
book = next(layer.getFeatures(request))
self.wrapper.setFeature(book)
self.table_view = self.widget.findChild(QTableView)
return self.wrapper
开发者ID:elpaso,项目名称:QGIS,代码行数:101,代码来源:test_qgsrelationeditwidget.py
示例3: TestQgsRelationEditWidget
#.........这里部分代码省略.........
timer.setSingleShot(True)
timer.setInterval(0) # will run in the event loop as soon as it's processed when the dialog is opened
timer.timeout.connect(choose_linked_feature)
timer.start()
btn.click()
# magically the above code selects the feature here...
link_feature = self.vl_link.getFeatures(QgsFeatureRequest().setFilterExpression('"fk_book"={}'.format(f[0]))).next()
self.assertIsNotNone(link_feature[0])
self.assertEquals(self.table_view.model().rowCount(), 1)
@expectedFailure
def test_unlink_feature(self):
"""
Check if a linked feature can be unlinked
"""
wrapper = self.createWrapper(self.vl_b)
wdg = wrapper.widget()
# All authors are listed
self.assertEquals(self.table_view.model().rowCount(), 4)
it = self.vl_a.getFeatures(
QgsFeatureRequest().setFilterExpression('"name" IN (\'Richard Helm\', \'Ralph Johnson\')'))
self.widget.featureSelectionManager().select([f.id() for f in it])
btn = self.widget.findChild(QToolButton, 'mUnlinkFeatureButton')
btn.click()
# This is actually more checking that the database on delete action is properly set on the relation
self.assertEquals(2, len([f for f in self.vl_link.getFeatures()]))
self.assertEquals(2, self.table_view.model().rowCount())
def startTransaction(self):
"""
Start a new transaction and set all layers into transaction mode.
:return: None
"""
lyrs = [self.vl_a, self.vl_b, self.vl_link]
self.transaction = QgsTransaction.create([l.id() for l in lyrs])
self.transaction.begin()
for l in lyrs:
l.startEditing()
def rollbackTransaction(self):
"""
Rollback all changes done in this transaction.
We always rollback and never commit to have the database in a pristine
state at the end of each test.
:return: None
"""
lyrs = [self.vl_a, self.vl_b, self.vl_link]
for l in lyrs:
l.commitChanges()
self.transaction.rollback()
def createWrapper(self, layer, filter=None):
"""
Basic setup of a relation widget wrapper.
Will create a new wrapper and set its feature to the one and only book
in the table.
It will also assign some instance variables to help
* self.widget The created widget
* self.table_view The table view of the widget
:return: The created wrapper
"""
if layer == self.vl_b:
relation = self.rel_b
nmrel = self.rel_a
else:
relation = self.rel_a
nmrel = self.rel_b
parent = QWidget()
self.wrapper = QgsRelationWidgetWrapper(layer, relation)
self.wrapper.setConfig({'nm-rel': nmrel.id()})
context = QgsAttributeEditorContext()
context.setVectorLayerTools(self.vltools)
self.wrapper.setContext(context)
self.widget = self.wrapper.widget()
self.widget.show()
request = QgsFeatureRequest()
if filter:
request.setFilterExpression(filter)
book = layer.getFeatures(request).next()
self.wrapper.setFeature(book)
self.table_view = self.widget.findChild(QTableView)
return self.wrapper
开发者ID:barianet,项目名称:QGIS,代码行数:101,代码来源:test_qgsrelationeditwidget.py
注:本文中的qgis.gui.QgsRelationWidgetWrapper类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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