我正在尝试将Google Charts与Wordpress集成,使用高级自定义字段输入来填充数据。在JavaScript中只有一个迭代之后,it crashes, despite proper data formatting。Uncaught TypeError:无法读取属性'ChartWrapper'undefined
从其他问题我收集google.visualization一定不能加载及时,因为它是未定义的,但这些问题的作者没有使用setOnLoadCallback。我有,应该解决这个问题。我误解了什么?
的functions.php:
function create_chart(){
if(have_rows('chart')){
wp_enqueue_script('google-charts', 'https://www.gstatic.com/charts/loader.js');
$chart_data = array();
while(have_rows('chart'))
array_push($chart_data, the_row(true));
wp_register_script('chart-generator', get_stylesheet_directory_uri() . '/js/chart-generator.js');
wp_enqueue_script('chart-generator', true);
wp_localize_script('chart-generator', 'chart_data', $chart_data);
}
}
add_action('wp_head', 'create_chart');
图表-generator.js
(function($){
google.charts.load('current', {packages: ['corechart']});
for(i=0; i<chart_data.length; i++){
// Reencodes objects as arrays
next_chart = chart_data[i];
for(j=0; j<next_chart.entry.length; j++)
next_chart.entry[j] = Object.values(next_chart.entry[j]);
console.log(next_chart);
google.charts.setOnLoadCallback(
drawPieChart(
next_chart.title,
next_chart.id,
next_chart.colors,
next_chart.entry));
}
})(jQuery);
function drawPieChart(title, id, colors, entries) {
// Appends to beginning of array
entries.unshift(['title', 'quantity']);
var wrapper = new google.visualization.ChartWrapper({
chartType: 'PieChart',
dataTable: google.visualization.arrayToDataTable(entries),
options: {
'title': title,
pieHole: 0.4,
},
containerId: id
});
wrapper.draw();
}
HTML:
<div id="onechart" style="width:200px; height: 200px;"></div>
<div id="twochart" style="width:200px; height: 200px;"></div>
<div id="redchart" style="width:200px; height: 200px;"></div>
<div id="vis_div" style="width:200px; height: 200px;"></div>
<div id="burger" style="width:200px; height: 200px;"></div>
不知道这是否有道理......'google.charts.setOnLoadCallback'会不会是'google.setOnLoadCallback'?问题正在调用图表加载之前... – ficuscr