101 lines
2.8 KiB
PHP
101 lines
2.8 KiB
PHP
|
<div style="position: relative; width: 800px; height: 400px;">
|
||
|
|
<div id="current-period" style="text-align: center; position: absolute; top: 0; left: 0; right: 0; z-index: 10; font-size: 14px; background-color: rgba(255, 255, 255, 0.7);"></div>
|
||
|
|
<canvas id="graph_<?= $graph_name ?>" style="margin-top: 20px;"></canvas>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
var ctx = document.getElementById('graph_<?= $graph_name ?>').getContext('2d');
|
||
|
|
var chartData0 = <?php echo json_encode($data0); ?>;
|
||
|
|
var chartData1 = <?php echo json_encode($data1); ?>;
|
||
|
|
|
||
|
|
var labels = chartData0.map(function(item) {
|
||
|
|
return item.date;
|
||
|
|
});
|
||
|
|
|
||
|
|
var values0 = chartData0.map(function(item) {
|
||
|
|
return item.value;
|
||
|
|
});
|
||
|
|
|
||
|
|
var values1 = chartData1.map(function(item) {
|
||
|
|
return item.value;
|
||
|
|
});
|
||
|
|
|
||
|
|
var graph_<?= $graph_name ?> = new Chart(ctx, {
|
||
|
|
type: 'line',
|
||
|
|
data: {
|
||
|
|
labels: labels,
|
||
|
|
datasets: [
|
||
|
|
{
|
||
|
|
label: '<?= $graph_data0_label ?? '' ?>',
|
||
|
|
data: values0,
|
||
|
|
borderColor: 'rgba(75, 192, 192, 1)',
|
||
|
|
borderWidth: 1,
|
||
|
|
fill: false
|
||
|
|
},
|
||
|
|
{
|
||
|
|
label: '<?= $graph_data1_label ?? '' ?>',
|
||
|
|
data: values1,
|
||
|
|
borderColor: 'rgba(255, 99, 132, 1)',
|
||
|
|
borderWidth: 1,
|
||
|
|
fill: false
|
||
|
|
}
|
||
|
|
]
|
||
|
|
},
|
||
|
|
options: {
|
||
|
|
layout: {
|
||
|
|
padding: {
|
||
|
|
top: 30
|
||
|
|
}
|
||
|
|
},
|
||
|
|
scales: {
|
||
|
|
x: {
|
||
|
|
type: 'time',
|
||
|
|
time: {
|
||
|
|
unit: 'day'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
y: {
|
||
|
|
beginAtZero: true
|
||
|
|
}
|
||
|
|
},
|
||
|
|
plugins: {
|
||
|
|
zoom: {
|
||
|
|
pan: {
|
||
|
|
enabled: true,
|
||
|
|
mode: 'x'
|
||
|
|
},
|
||
|
|
zoom: {
|
||
|
|
enabled: true,
|
||
|
|
mode: 'x'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
legend: {
|
||
|
|
position: 'bottom',
|
||
|
|
labels: {
|
||
|
|
boxWidth: 20,
|
||
|
|
padding: 30
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Add dynamic label to show the currently displayed time period
|
||
|
|
var currentPeriodLabel = document.getElementById('current-period');
|
||
|
|
|
||
|
|
function updatePeriodLabel(chart) {
|
||
|
|
var startDate = chart.scales.x.min;
|
||
|
|
var endDate = chart.scales.x.max;
|
||
|
|
currentPeriodLabel.innerHTML = 'Currently displaying: ' + new Date(startDate).toLocaleDateString() + ' - ' + new Date(endDate).toLocaleDateString();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Attach the update function to the 'zoom' event (to be used with the time period links)
|
||
|
|
graph_<?= $graph_name ?>.options.plugins.zoom.onZoom = function({ chart }) {
|
||
|
|
updatePeriodLabel(chart);
|
||
|
|
};
|
||
|
|
|
||
|
|
// Update the label initially when the chart is rendered
|
||
|
|
updatePeriodLabel(graph_<?= $graph_name ?>);
|
||
|
|
|
||
|
|
</script>
|