我正在尝试使用PHP和mysql创建Highchart甘特图。我在从mysql数据库中检索数据时遇到问题。 Highchart Gantt给出的用于存储数据的示例中的格式为:
cars = [{
model: 'Nissan Leaf',
current: 0,
deals: [{
rentedTo: 'Lisa Star',
from: today - 1 * day,
to: today + 2 * day
}, {
rentedTo: 'Shane Long',
from: today - 3 * day,
to: today - 2 * day
}, {
rentedTo: 'Jack Coleman',
from: today + 5 * day,
to: today + 6 * day
}]
}}
这是我的表格例如:
kategori |sub categori | start_date | end_date
-----------------------------------------------
cat 1 | sub 1 | 2019-03-01 | 2019-03-04
cat 2 | sub 2 | 2019-03-06 | 2019-03-10
我尝试了以下方法从mysql表中检索数据,以获得示例中给出的确切格式:
查询:
$query = "SELECT `kategori`, `sub_kategori`, `start_date`, `end_date`, FROM `table` ";
功能:
public function datatable_mini($query)
{
$stmt = $this->db->prepare($query);
$stmt->execute();
if($stmt->rowCount()>0)
{
$y=$stmt->rowCount();
$x=1;
while($row=$stmt->fetch(PDO::FETCH_ASSOC))
{
$start_date = DateTime::createFromFormat('Y-m-d', $row['start_date']);
$year = $start_date->format('Y');
$month = $start_date->format('m');
$day = $start_date->format('d');
?>
{
<br/>
<span>Kategori: '<?php print($row['kategori']); ?>',</span>
<br/><span>current: 0,</span>
<br/><span>deals: [{</span>
<br/><span>SubKategori: '<?php print($row['sub_kategori']); ?>',</span>
<br/><span>Mulai: Date.UTC(<?php print($year); ?>,<?php print($month); ?>,<?php print($day); ?>),</span>
<br/><span>Selesai: Date.UTC(<?php print(date('Y',strtotime($row['end_date']))); ?>,<?php print(date('m',strtotime($row['end_date']))); ?>,<?php print(date('d',strtotime($row['end_date']))); ?>)</span>
<br/>
}]
<br/>}<?php
if($x<$y){
echo ',';
}
$x=$x+1;
?>
<?php
}
}
else
{
echo "Nothing here...";
}
}
这是在javascript中:
cars = [<?php echo $crud->datatable_mini($query); ?>];
当我尝试回显结果时,它提供了所需的完全相同的格式,如示例中所示:
{
Kategori: 'cat 1',
current: 0,
deals: [{
SubKategori: 'sub 1',
Mulai: Date.UTC(2019,03,01),
Selesai: Date.UTC(2019,03,04)
}]
}
等等..
但没有显示图表。
如何使用示例中给出的格式将mysql数据检索到javascript中?
highcharts无法识别您的对象,因为对象名称不正确且不在数组中(可能您将数组部分固定在未显示的内容中)。
对于您上面粘贴的数据,您需要最终使用以下格式:
[{
data: [{
name: 'cat 1',
id: 'cat 1'
}, {
name: 'sub 1',
parent: 'cat 1',
start: Date.UTC(2019,03,01),
end: Date.UTC(2019,03,04),
completed: {
amount: 0
}
}]
}],
使用JSFiddle示例:https://jsfiddle.net/ewolden/muj5vx1f/6/
请参阅API以获取所有已定义对象的列表:https://api.highcharts.com/gantt/series.gantt.data