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historial.php
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<?php
require_once __DIR__ . '/app/link.php';
?>
<!doctype html>
<html>
<head>
<title>Line Chart</title>
<script src="<?php echo app_url(); ?>js/chartjs/Chart.bundle.js"></script>
<script src="<?php echo app_url(); ?>js/chartjs/utils.js"></script>
<style>
canvas{
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width:75%;">
<canvas id="canvas"></canvas>
</div>
<br>
<br>
<script src="<?php echo app_url(); ?>js/jquery-3.2.1.min.js"></script>
<script>
var APP_URL = '<?php echo app_url(); ?>';
var prices = [], dates = [];
<?php
if (isset($_GET['id']) && is_numeric($_GET['id'])) {
?>
$.ajax({
url: APP_URL + '/class/Historial.php',
method: 'POST',
data: {
get: 'historial',
product_id: <?php echo $_GET['id']; ?>
},
dataType: 'JSON',
success: function (data) {
console.log(data);
data.historial.forEach(function (precio) {
prices.push(precio.price_new);
dates.push(precio.created_at);
});
var config = {
type: 'line',
data: {
labels: dates,
datasets: [{
label: "Precio ($)",
backgroundColor: window.chartColors.blue,
borderColor: window.chartColors.blue,
data: prices,
fill: false
}
]
},
options: {
responsive: true,
title:{
display:true,
text:'Historial de precios'
},
tooltips: {
mode: 'index',
intersect: false
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Fecha'
}
}],
yAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Precio'
}
}]
}
}
};
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, config);
},
error: function (data) {
console.log(data);
}
});
<?php
}
?>
</script>
</body>
</html>