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RealTimeDatabase.qml
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RealTimeDatabase.qml
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/* Copyright (c) 2020 Qmlio
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import QtQuick 2.6
import QtQuick.Window 2.2
import QtQuick.Controls 2.2
import QmlioFirebase 1.0
Page {
title: qsTr("Database")
// generate random database keys
property string key1: mainDatabase.key()
property string key2: mainDatabase.key()
property string mainDb: "Posts"
Text {
id: name
text: qsTr("text")
}
Row {
width: parent.width
spacing: 0
height: parent.height
DatabaseSection {
}
LogSection {
id: log
}
}
// Main database
QmlioDatabase {
id: mainDatabase
// Donot set QmlioDatabase::persist directly, instead use this signal
onBeforeInitialised: {
console.log("is before initialised ")
persist = true
}
// called an error occurs
onErrorChanged: {
log.log(errorMsg + " " + errorCode)
}
// emited when the firebase::database instance is intialised
// Any Database listners attached to this database will not work until this signal is emited
onDatabaseInitialized: {
childQuery.addChildListner()
}
// attach queries
queries: [
DatabaseQuery {
id: childQuery
// for quality debuging, set the tag
tag: "Database.childQuery"
priority: QmlioDatabase.Normal
onChildAdded: {
console.log("\n------------------q1 Child Added -------------")
console.log(JSON.stringify(value) + " " + value)
console.log("\n------------------q1 Child Added END -------------")
}
// emited when an query is complete
onCompleted: {
console.log("Complete q1------------" + JSON.stringify(
value) + " " + value)
log("q1 is complete")
}
}
]
}
}