QStandardItem 对象没有属性 findItems

Question

您好，我正在尝试在一个中组织多个路径

treeview

，但此代码不起作用

我收到如下错误：

AttributeError: 'QStandardItem' object has no attribute 'findItems'
its like QStandardItem do no have a function to find the item

你有什么想法吗

import sys
from PyQt5 import QtGui, QtCore

from PyQt5.QtWidgets import QApplication, QMainWindow, QTreeView, QVBoxLayout, QWidget

class TreeViewExample(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("QTreeView Example")
        self.setGeometry(100, 100, 800, 600)

        self.central_widget = QWidget(self)
        self.setCentralWidget(self.central_widget)

        self.tree_view = QTreeView(self.central_widget)
        self.model = QtGui.QStandardItemModel()
        self.tree_view.setModel(self.model)

        # Replace this list with your own list of file paths
        file_paths = [
            "/home/user/documents/file1.txt",
            "/home/user/documents/folder1/file2.txt",
            "/home/user/documents/folder1/file3.txt",
            "/home/user/pictures/photo1.jpg",
            "/home/user/pictures/folder2/photo2.jpg",
        ]

        # Organize file paths in parent-child hierarchy
        self.organize_paths(file_paths)

        # Set up the layout
        layout = QVBoxLayout(self.central_widget)
        layout.addWidget(self.tree_view)

    def organize_paths(self, file_paths):
        for path in file_paths:
            components = path.split("/")
            current_parent = None

            for component in components:
                print(component)
                item = self.get_or_create_item(component, parent=current_parent)
                current_parent = item

    def get_or_create_item(self, text, parent=None):
        items = parent.findItems(text) if parent else self.model.findItems(text)
        if items:
            return items[0]
        else:
            item = QtGui.QStandardItem(text)
            if parent:
                parent.appendRow(item)
            else:
                self.model.appendRow(item)
            return item

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = TreeViewExample()
    window.show()
    sys.exit(app.exec_())

Answer 1

QStandardItem

没有

findItems()

，但您可以使用

for

循环与

.rowCount()

和

.child(index)

来检查

child.text()

    def get_or_create_item(self, text, parent=None):

        if parent:
            #print('add to parent:', text, parent)
            item = None
            
            for i in range(parent.rowCount()):
                child = parent.child(i)
                #print('>> child:', child.text(), child)
                if child.text() == text:
                    item = child
                    break
                
            if item:
                #print('  parent return:', item)
                return item
            else:
                item = QtGui.QStandardItem(text)
                parent.appendRow(item)
                #print('  parent create:', text, item)
                return item
        else:
            #print('add to model:', text)
            items = self.model.findItems(text)
            
            if items:
                #print('  model return:', items[0])
                return items[0]
            else:
                item = QtGui.QStandardItem(text)
                self.model.appendRow(item)
                #print('  model create:', text, item)
                return item

---

完整的工作代码：

import sys
from PyQt5 import QtGui, QtCore
from PyQt5.QtWidgets import QApplication, QMainWindow, QTreeView, QVBoxLayout, QWidget

class TreeViewExample(QMainWindow):

    def __init__(self):
        super().__init__()

        self.setWindowTitle("QTreeView Example")
        self.setGeometry(100, 100, 800, 600)

        self.central_widget = QWidget(self)
        self.setCentralWidget(self.central_widget)

        self.tree_view = QTreeView(self.central_widget)
        self.model = QtGui.QStandardItemModel()
        self.tree_view.setModel(self.model)

        # Replace this list with your own list of file paths
        file_paths = [
            "/home/user/documents/file1.txt",
            "/home/user/documents/folder1/file2.txt",
            "/home/user/documents/folder1/file3.txt",
            "/home/user/pictures/photo1.jpg",
            "/home/user/pictures/folder2/photo2.jpg",
        ]

        # Organize file paths in parent-child hierarchy
        self.organize_paths(file_paths)

        # Set up the layout
        layout = QVBoxLayout(self.central_widget)
        layout.addWidget(self.tree_view)

    def organize_paths(self, file_paths):
        for path in file_paths:
            components = path.split("/")[1:]
            current_parent = None

            for component in components:
                #print('component:', component)
                item = self.get_or_create_item(component, parent=current_parent)
                current_parent = item

    def get_or_create_item(self, text, parent=None):

        if parent:
            #print('add to parent:', text, parent)
            item = None
            
            for i in range(parent.rowCount()):
                child = parent.child(i)
                #print('>> child:', child.text(), child)
                if child.text() == text:
                    item = child
                    break
                
            if item:
                #print('  parent return:', item)
                return item
            else:
                item = QtGui.QStandardItem(text)
                parent.appendRow(item)
                #print('  parent create:', text, item)
                return item
        else:
            #print('add to model:', text)
            items = self.model.findItems(text)
            
            if items:
                #print('  model return:', items[0])
                return items[0]
            else:
                item = QtGui.QStandardItem(text)
                self.model.appendRow(item)
                #print('  model create:', text, item)
                return item

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = TreeViewExample()
    window.show()
    sys.exit(app.exec())

结果：