status-desktop/storybook/pages/LeftJoinRenamingSfpmPage.qml

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import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Layouts 1.15
import StatusQ 0.1
import SortFilterProxyModel 0.2
Control {
font.pixelSize: 15
ListModel {
id: leftBaseModel
Component.onCompleted: {
const items = []
for (let i = 0; i < 1000; i++)
items.push({ name: `base name (${i})`, foreignId: i % 15 })
append(items)
}
}
ListModel {
id: rightBaseModel
Component.onCompleted: {
const items = []
for (let i = 0; i < 20; i++)
items.push({ id: i, name: `foreign name (${i})` })
append(items)
}
}
RolesRenamingModel {
id: leftModelRenamed
sourceModel: leftBaseModel
mapping: RoleRename {
from: "name"
to: "baseName"
}
}
RolesRenamingModel {
id: rightModelRenamed
sourceModel: rightBaseModel
mapping: RoleRename {
from: "id"
to: "foreignId"
}
}
LeftJoinModel {
id: joinModel
leftModel: leftModelRenamed
rightModel: rightModelRenamed
joinRole: "foreignId"
}
SortFilterProxyModel {
id: filteringModel
sourceModel: joinModel
filters: ValueFilter {
roleName: "foreignId"
value: searchTextField.text
enabled: searchTextField.length
}
}
ColumnLayout {
anchors.fill: parent
anchors.margins: 10
Label {
Layout.fillWidth: true
text: "Simple example showing how to compose custom model from two "
+ "source models using RolesRenamingModel, LeftJoinModel "
+ "and SortFilterProxyModel"
font.bold: true
wrapMode: Text.Wrap
}
TextField {
id: searchTextField
Layout.fillWidth: true
placeholderText: "Filter by foreign id"
}
ListView {
Layout.fillWidth: true
Layout.fillHeight: true
ScrollBar.vertical: ScrollBar {}
model: filteringModel
clip: true
delegate: Label {
width: ListView.view.height
text: `${model.baseName}, ${model.name} (id: ${model.foreignId})`
}
}
}
}
// category: Research / Examples