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我正在开发一个 GUI，它允许护士和医生从 sqlite 数据库中查看或查看患者记录。我已经能够设计一种使用setFilter功能过滤行的方法。然而，这是我的困境：搜索字符数据的离散字段工作完美；但是，当我使用患者的 MRN（身份证号）采取同样的方法时，它会返回一个空白屏幕。这是我的代码，[参见下面的第 1a 节，[#1]：

from PyQt4 import QtCore, QtGui, QtSql
import sys  
import sqlite3
import time
import Search  #Imported ui.py file
import os 

try:
    from PyQt4.QtCore import QString
except ImportError:
    QString = str

class SearchDatabase(QtGui.QMainWindow, Search.Search_MainWindow):
    def __init__(self, tableName, parent=None):
        super(self.__class__, self).__init__()
        self.setupUi(self)  

        self.model = QtSql.QSqlTableModel(self)
        self.model.setTable('CAUTI')
        self.model.setEditStrategy(QtSql.QSqlTableModel.OnManualSubmit)
        self.model.select()

        self.model.setHeaderData(0, QtCore.Qt.Horizontal, "MRN")
        self.model.setHeaderData(1, QtCore.Qt.Horizontal, "Last Name")
        self.model.setHeaderData(2, QtCore.Qt.Horizontal, "First Name")
        self.model.setHeaderData(3, QtCore.Qt.Horizontal, "Date of Event")
        self.model.setHeaderData(4, QtCore.Qt.Horizontal, "Facility")
        self.model.setHeaderData(5, QtCore.Qt.Horizontal, "Unit")
        self.model.setHeaderData(6, QtCore.Qt.Horizontal, "User")
        self.tableView.setModel(self.model)
        self.setWindowTitle("HAI Table")
        self.tableView.setColumnWidth(0,100)
        self.tableView.setColumnWidth(1,100)
        self.tableView.setColumnWidth(2,100)
        self.tableView.setColumnWidth(3,100)
        self.tableView.setColumnWidth(4,100)
        self.tableView.setColumnWidth(5,100)
        self.tableView.setColumnWidth(6,83)
        self.submitButton.clicked.connect(self.submit)
        self.revertButton.clicked.connect(self.model.revertAll)
        self.quitButton.clicked.connect(self.close)

# Section 1: Signals 

    # {i} Search Fields Button Emitted:
    # [1]
        self.search_MRN_Button.clicked.connect(self.search_MRN_FilterRecord)
    # [2]
        self.search_Lname_Button.clicked.connect(self.search_Lname_FilterRecord)
    # [3]
        self.search_Unit_Button.clicked.connect(self.search_Unit_FilterRecord)

    # {ii} Search Clear Buttons Emitted: 
    # [1]
        self.search_MRN_CancelButton.clicked.connect(self.search_MRN_CancelButton_Clicked)
    # [2]
        self.search_Lname_CancelButton.clicked.connect(self.search_Lname_CancelButton_Clicked)
    # [3]
        self.search_Unit_CancelButton.clicked.connect(self.search_Unit_CancelButton_Clicked)

# Section 1a: Slots from Section 1 [Start Line: 47]

    #{i} Search Field Button Slots:
    #[1]
    def search_MRN_FilterRecord(self):
        text = self.search_MRN.text()
        if len(text) == 0:
            self.model.setFilter("")
        else:
            self.model.setFilter("MRN = '%f'" + text)
    #[2]
    def search_Lname_FilterRecord(self):
        text = self.search_Lname.text()
        if len(text) == 0:
            self.model.setFilter("")
        else:
            self.model.setFilter("Surname = '%s'" % text)
    #[3]
    def search_Unit_FilterRecord(self):
        text = self.search_Unit.text()
        if len(text) == 0:
            self.model.setFilter("")
        else:
            self.model.setFilter("Unit = '%s'" % text)

    #{ii} Search Field Cancel Button Slots:
    #[1]
    def search_MRN_CancelButton_Clicked(self):
        self.model.setFilter("")
        self.search_MRN.setText("MRN Search")
    #[2]
    def search_Lname_CancelButton_Clicked(self):
        self.model.setFilter("")
        self.search_Lname.setText("Last Name Search")
    #[3]
    def search_Unit_CancelButton_Clicked(self):
        self.model.setFilter("")
        self.search_Unit.setText("Unit Search")



    def submit(self):
        self.model.database().transaction()
        if self.model.submitAll():
            self.model.database().commit()
        else:
            self.model.database().rollback()
            QtGui.QMessageBox.warning(self, "HAI Table",
                        "The database reported an error: %s" % self.model.lastError().text())

def main():
    app = QtGui.QApplication(sys.argv) 
    #app.setStyle( "Plastique" )
    db = QtSql.QSqlDatabase.addDatabase('QSQLITE')
    db.setDatabaseName('HAI.db')

    editor = SearchDatabase('CAUTI')
    editor.show()
    app.exec_()  


if __name__ == '__main__':  
    main()  # run the main function

我已经尝试过以下方法：

self.model.setFilter("MRN = '%f'" + str(text))
self.model.setFilter("MRN = '%f'" + text)
self.model.setFilter(str("MRN = '%f'" % text))
self.model.setFilter(str("MRN = '%s'" % text))
self.model.setFilter((("MRN = '%s'" %) + str(text)))
self.model.setFilter(("MRN = '%s'" + str(text))

我究竟做错了什么？请指教。

4

1 回答 1

2

我花了很长时间才弄清楚这一点！但这里是答案。

self.model.setFilter("MRN like'" +self.search_MRN.text()+ "%%'")
于 2017-01-28T02:37:40.950 回答