eric6/SqlBrowser/SqlBrowser.py

Wed, 30 Dec 2020 11:00:44 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 30 Dec 2020 11:00:44 +0100
branch
maintenance
changeset 7924
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parent 7781
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child 8143
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permissions
-rw-r--r--

Updated copyright for 2021.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the SQL Browser main window.
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8 """
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9
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10 from PyQt5.QtCore import QTimer, QUrl
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11 from PyQt5.QtGui import QKeySequence
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12 from PyQt5.QtSql import QSqlError, QSqlDatabase
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13
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14 from E5Gui.E5Action import E5Action
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15 from E5Gui import E5MessageBox
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16 from E5Gui.E5MainWindow import E5MainWindow
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17 from E5Gui.E5Application import e5App
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18
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19 import UI.PixmapCache
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20 import UI.Config
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21
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22 import Preferences
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23
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24
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25 class SqlBrowser(E5MainWindow):
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26 """
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27 Class implementing the SQL Browser main window.
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28 """
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29 def __init__(self, connections=None, parent=None):
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30 """
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31 Constructor
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32
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33 @param connections list of database connections to add
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34 (list of strings)
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35 @param parent reference to the parent widget (QWidget)
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36 """
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37 super(SqlBrowser, self).__init__(parent)
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38 self.setObjectName("SqlBrowser")
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39
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40 if connections is None:
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41 connections = []
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42
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43 self.setWindowTitle(self.tr("SQL Browser"))
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44 self.setWindowIcon(UI.PixmapCache.getIcon("eric"))
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45
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46 self.setStyle(Preferences.getUI("Style"),
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47 Preferences.getUI("StyleSheet"))
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48
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49 from .SqlBrowserWidget import SqlBrowserWidget
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50 self.__browser = SqlBrowserWidget(self)
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51 self.setCentralWidget(self.__browser)
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52
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53 self.__browser.statusMessage.connect(self.statusBar().showMessage)
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54
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55 self.__initActions()
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56 self.__initMenus()
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57 self.__initToolbars()
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58
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59 self.resize(self.__browser.size())
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60
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61 self.__warnings = []
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62
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63 for connection in connections:
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64 url = QUrl(connection, QUrl.TolerantMode)
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65 if not url.isValid():
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66 self.__warnings.append(
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67 self.tr("Invalid URL: {0}").format(connection))
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68 continue
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69
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70 err = self.__browser.addConnection(url.scheme(), url.path(),
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71 url.userName(), url.password(),
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72 url.host(), url.port(-1))
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73 if err.type() != QSqlError.NoError:
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74 self.__warnings.append(
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75 self.tr("Unable to open connection: {0}".format(
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76 err.text())))
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77
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78 QTimer.singleShot(0, self.__uiStartUp)
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79
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80 def __uiStartUp(self):
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81 """
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82 Private slot to do some actions after the UI has started and the main
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83 loop is up.
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84 """
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85 for warning in self.__warnings:
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86 E5MessageBox.warning(
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87 self,
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88 self.tr("SQL Browser startup problem"),
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89 warning)
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90
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91 if len(QSqlDatabase.connectionNames()) == 0:
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92 self.__browser.addConnectionByDialog()
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93
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94 def __initActions(self):
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95 """
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96 Private method to define the user interface actions.
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97 """
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98 # list of all actions
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99 self.__actions = []
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100
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101 self.addConnectionAct = E5Action(
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102 self.tr('Add Connection'),
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103 UI.PixmapCache.getIcon("databaseConnection"),
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104 self.tr('Add &Connection...'),
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105 0, 0, self, 'sql_file_add_connection')
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106 self.addConnectionAct.setStatusTip(self.tr(
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107 'Open a dialog to add a new database connection'))
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108 self.addConnectionAct.setWhatsThis(self.tr(
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109 """<b>Add Connection</b>"""
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110 """<p>This opens a dialog to add a new database"""
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111 """ connection.</p>"""
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112 ))
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113 self.addConnectionAct.triggered.connect(
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114 self.__browser.addConnectionByDialog)
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115 self.__actions.append(self.addConnectionAct)
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116
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117 self.exitAct = E5Action(
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118 self.tr('Quit'),
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119 UI.PixmapCache.getIcon("exit"),
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120 self.tr('&Quit'),
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121 QKeySequence(self.tr("Ctrl+Q", "File|Quit")),
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122 0, self, 'sql_file_quit')
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123 self.exitAct.setStatusTip(self.tr('Quit the SQL browser'))
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124 self.exitAct.setWhatsThis(self.tr(
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125 """<b>Quit</b>"""
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126 """<p>Quit the SQL browser.</p>"""
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127 ))
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128 self.exitAct.triggered.connect(e5App().closeAllWindows)
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129
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130 self.aboutAct = E5Action(
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131 self.tr('About'),
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132 self.tr('&About'),
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133 0, 0, self, 'sql_help_about')
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134 self.aboutAct.setStatusTip(self.tr(
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135 'Display information about this software'))
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136 self.aboutAct.setWhatsThis(self.tr(
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137 """<b>About</b>"""
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138 """<p>Display some information about this software.</p>"""
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139 ))
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140 self.aboutAct.triggered.connect(self.__about)
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141 self.__actions.append(self.aboutAct)
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142
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143 self.aboutQtAct = E5Action(
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144 self.tr('About Qt'),
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145 self.tr('About &Qt'),
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146 0, 0, self, 'sql_help_about_qt')
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147 self.aboutQtAct.setStatusTip(
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148 self.tr('Display information about the Qt toolkit'))
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149 self.aboutQtAct.setWhatsThis(self.tr(
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150 """<b>About Qt</b>"""
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151 """<p>Display some information about the Qt toolkit.</p>"""
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152 ))
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153 self.aboutQtAct.triggered.connect(self.__aboutQt)
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154 self.__actions.append(self.aboutQtAct)
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155
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156 def __initMenus(self):
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157 """
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158 Private method to create the menus.
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159 """
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160 mb = self.menuBar()
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161
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162 menu = mb.addMenu(self.tr('&File'))
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163 menu.setTearOffEnabled(True)
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164 menu.addAction(self.addConnectionAct)
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165 menu.addSeparator()
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166 menu.addAction(self.exitAct)
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167
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168 mb.addSeparator()
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169
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170 menu = mb.addMenu(self.tr('&Help'))
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171 menu.setTearOffEnabled(True)
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172 menu.addAction(self.aboutAct)
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173 menu.addAction(self.aboutQtAct)
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174
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175 def __initToolbars(self):
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176 """
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177 Private method to create the toolbars.
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178 """
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179 filetb = self.addToolBar(self.tr("File"))
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180 filetb.setObjectName("FileToolBar")
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181 filetb.setIconSize(UI.Config.ToolBarIconSize)
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182 filetb.addAction(self.addConnectionAct)
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183 filetb.addSeparator()
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184 filetb.addAction(self.exitAct)
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185
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186 def __about(self):
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187 """
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188 Private slot to show the about information.
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189 """
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190 E5MessageBox.about(
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191 self,
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192 self.tr("SQL Browser"),
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193 self.tr(
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194 """<h3>About SQL Browser</h3>"""
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195 """<p>The SQL browser window is a little tool to examine """
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196 """the data and the schema of a database and to execute """
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197 """queries on a database.</p>"""
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198 )
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199 )
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200
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201 def __aboutQt(self):
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202 """
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203 Private slot to show info about Qt.
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204 """
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205 E5MessageBox.aboutQt(self, self.tr("SQL Browser"))

eric ide

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