381 lines
12 KiB
Dart
381 lines
12 KiB
Dart
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import 'dart:async';
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import 'dart:io';
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import 'package:downloads_path_provider/downloads_path_provider.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_downloader/flutter_downloader.dart';
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import 'package:intl/intl.dart';
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import 'package:open_file/open_file.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:provider/provider.dart';
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import 'package:fcs/model/language_model.dart';
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import 'package:fcs/model/report_model.dart';
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import 'package:fcs/pages/util.dart';
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import 'package:fcs/theme/theme.dart';
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import 'package:fcs/vo/report.dart';
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import 'package:fcs/widget/my_data_table.dart';
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import 'package:fcs/widget/progress.dart';
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import 'report_field_list_page.dart';
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import 'report_filter_list_page.dart';
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class ReportsDataTable extends StatefulWidget {
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final Report report;
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ReportsDataTable({this.report});
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@override
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_ReportsDataTableState createState() => _ReportsDataTableState();
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}
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class _ReportsDataTableState extends State<ReportsDataTable> {
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Report report;
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int limit = 20;
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int offset = 0;
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final numberFormatter = new NumberFormat("#,###");
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var dateFormatter = new DateFormat('dd MMM yyyy\nhh:mm:ss a');
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List _initialDisplayFields = [];
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List<Field> _initialFields = [];
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List _initialfieldList = [];
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List<Field> displayFields = [];
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List dataList = [];
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List cellfields = [];
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List fieldList = [];
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bool sort;
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bool _isLoading;
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int sortColumnIndex = 1;
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bool _endOfData;
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TargetPlatform platform;
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bool _permissionReady;
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String _localPath;
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@override
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void initState() {
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_controller = ScrollController();
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_controller.addListener(_scrollListener);
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super.initState();
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sort = false;
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_isLoading = true;
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_endOfData = false;
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_permissionReady = false;
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_load();
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}
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_prepare() async {
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platform = Theme.of(context).platform;
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_permissionReady = await _checkPermission();
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_localPath = (await _findLocalPath()) + Platform.pathSeparator + 'Download';
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final savedDir = Directory(_localPath);
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bool hasExisted = await savedDir.exists();
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if (!hasExisted) {
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savedDir.create();
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}
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}
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Future<bool> _checkPermission() async {
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if (platform == TargetPlatform.android) {
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PermissionStatus permission = await PermissionHandler()
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.checkPermissionStatus(PermissionGroup.storage);
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if (permission != PermissionStatus.granted) {
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Map<PermissionGroup, PermissionStatus> permissions =
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await PermissionHandler()
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.requestPermissions([PermissionGroup.storage]);
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if (permissions[PermissionGroup.storage] == PermissionStatus.granted) {
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return true;
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}
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} else {
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return true;
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}
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} else {
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return true;
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}
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return false;
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}
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_load() async {
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var reportModel = Provider.of<ReportModel>(context, listen: false);
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var data = await reportModel.getReport(widget.report.id);
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reportModel.getReport(widget.report.id).then((_report) {
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// var data = await reportModel.loadSelectedFieldsAndPosition(widget.report.id);
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reportModel.loadSelectedFieldsAndPosition(widget.report.id).then((value) {
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print("report value => $value");
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if (value != null) {
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_initialDisplayFields = value.fieldSelection;
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_initialFields = value.fieldPosition;
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} else {
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_initialDisplayFields = _report.displayFields;
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_initialFields = _report.fields;
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}
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_initialDisplayFields.asMap().forEach((key, value) {
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_initialFields.asMap().forEach((key, fvalue) {
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if (value == fvalue.name) {
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displayFields.add(fvalue);
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if (fvalue.aggFun != '') {
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var convertField = fvalue.name + '_' + fvalue.aggFun;
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cellfields.add(convertField);
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}
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if (fvalue.aggFun == '') {
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cellfields.add(value);
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}
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}
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});
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_initialfieldList.add(value);
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});
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});
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setState(() {
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this.report = _report;
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});
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_loadData();
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});
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}
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_loadData() {
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var reportModel = Provider.of<ReportModel>(context, listen: false);
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reportModel.getReportData(report, limit, offset).then((value) {
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setState(() {
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if (value == null || value.length < limit) {
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_endOfData = true;
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}
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dataList.addAll(value);
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_isLoading = false;
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});
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});
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}
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ScrollController _controller;
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_scrollListener() {
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if (_controller.offset >= _controller.position.maxScrollExtent &&
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!_controller.position.outOfRange) {
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setState(() {
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offset += limit;
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if (!_endOfData) _loadData();
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});
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}
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}
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Widget _buildPopupMenu() {
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return PopupMenuButton(
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onSelected: (s) {
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if (s == 1) {
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// var reportModel = Provider.of<ReportModel>(context, listen: false);
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// reportModel.downloadReportData(report);
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_download();
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} else if (s == 2) {}
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},
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itemBuilder: (context) => [
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PopupMenuItem(
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value: 1,
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child: Text("Download"),
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),
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PopupMenuItem(
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value: 2,
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child: Text("Clear setting"),
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),
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],
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);
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}
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@override
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Widget build(BuildContext context) {
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var reportModel = Provider.of<ReportModel>(context, listen: false);
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fieldList = _initialfieldList;
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print("report fieldList => $fieldList");
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print("report sortColumnIndex => $sortColumnIndex");
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return LocalProgress(
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inAsyncCall: _isLoading,
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child: Scaffold(
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appBar: AppBar(
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actions: <Widget>[
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IconButton(
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onPressed: () {
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Navigator.of(context).push(MaterialPageRoute(
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builder: (_) => ReportFilterListPage(report, (data) {
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dataList = [];
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setState(() {
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dataList = data;
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});
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})));
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},
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iconSize: 30,
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icon: Icon(Icons.filter_list),
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),
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IconButton(
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onPressed: () async {
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List flist = await Navigator.push<List>(
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context,
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MaterialPageRoute(
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builder: (context) => ReportFieldListPage(
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id: widget.report.id,
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fields: report.fields,
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selectedDisplayFields: fieldList,
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)),
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);
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fieldList = [];
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cellfields = [];
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displayFields = [];
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setState(() {
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fieldList = flist;
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fieldList.asMap().forEach((key, value) {
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_initialFields.asMap().forEach((key, fvalue) {
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if (value == fvalue.name) {
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displayFields.add(fvalue);
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if (fvalue.aggFun != '') {
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var convertField = fvalue.name + '_' + fvalue.aggFun;
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cellfields.add(convertField);
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}
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if (fvalue.aggFun == '') {
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cellfields.add(value);
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}
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}
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});
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});
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});
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},
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iconSize: 30,
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icon: Icon(Icons.list),
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),
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_buildPopupMenu()
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],
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backgroundColor: primaryColor,
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title: Text(
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report == null ? "" : report.display,
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style: Provider.of<LanguageModel>(context).isEng
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? TextStyle(fontSize: 18)
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: TextStyle(fontSize: 18, fontFamily: 'MyanmarUnicode'),
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),
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),
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body: _isLoading
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? Container()
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: SingleChildScrollView(
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controller: _controller,
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scrollDirection: Axis.vertical,
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: MyDataTable(
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columnSpacing: 10,
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sortAscending: this.sort,
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sortColumnIndex: this.sortColumnIndex,
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columns: getReportColumn(reportModel, this.displayFields),
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rows: getReportRow(this.dataList),
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oddLine: tableRowOdd,
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evenLine: tableRowEven,
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),
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),
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),
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),
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);
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}
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onSortColumn(ReportModel reportModel, int columnIndex, bool ascending,
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String fieldName) {
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if (columnIndex == this.sortColumnIndex) {
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if (ascending) {
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var str = fieldName + " " + "asc";
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List sorts = [];
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sorts.add(str);
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this.report.id = widget.report.id;
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this.report.sorts = sorts;
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reportModel.getReportData(report, this.limit, 0).then((value) {
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setState(() {
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dataList = value;
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_isLoading = false;
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this.offset = 0;
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});
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});
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} else {
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var str = fieldName + " " + "desc";
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List sorts = [];
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sorts.add(str);
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this.report.id = widget.report.id;
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this.report.sorts = sorts;
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Provider.of<ReportModel>(context)
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.getReportData(report, this.limit, 0)
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.then((value) {
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setState(() {
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dataList = value;
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_isLoading = false;
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this.offset = 0;
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});
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});
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}
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}
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}
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List<MyDataColumn> getReportColumn(
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ReportModel reportModel, List<Field> colList) {
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return colList.map((p) {
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var r = MyDataColumn(
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label: Text(
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p.displayName,
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style: TextStyle(
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fontSize: 16, color: Colors.black, fontWeight: FontWeight.bold),
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),
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onSort: (columnIndex, ascending) {
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setState(() {
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sort = !sort;
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sortColumnIndex = columnIndex;
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});
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onSortColumn(reportModel, columnIndex, ascending, p.name);
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},
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numeric:
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p.dataType == 'integer' || p.dataType == 'float' ? true : false,
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);
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return r;
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}).toList()
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..insert(0, MyDataColumn(label: Text("Sr")));
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}
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List<MyDataRow> getReportRow(List rowList) {
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int index = 0;
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return rowList.map((p) {
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var r = MyDataRow(cells: getDataCell(p, this.cellfields, ++index));
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return r;
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}).toList();
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}
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Future<String> _findLocalPath() async {
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var platform = Theme.of(context).platform;
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final directory = platform == TargetPlatform.android
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? await getExternalStorageDirectory()
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: await getApplicationDocumentsDirectory();
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return directory.path;
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}
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_download() async {
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await _prepare();
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var reportModel = Provider.of<ReportModel>(context, listen: false);
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String payload = await reportModel.getEscapeJson(report);
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print("downloader Path:$_localPath");
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String id = await FlutterDownloader.enqueue(
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url: "http://petrok.mokkon.com:8082/api/report-pdf/${report.object}",
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headers: {"payload": payload},
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savedDir: _localPath,
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showNotification: true,
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openFileFromNotification: true);
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}
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}
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List<MyDataCell> getDataCell(data, List fields, int index) {
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return fields.map((field) {
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var cell = MyDataCell(Text(
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'${data[field] == null ? "" : data[field]}',
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));
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return cell;
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}).toList()
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..insert(0, MyDataCell(Text("$index")));
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}
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