マーケティング プロジェクトで Google チャートを使用したいと考えています。ページネーション付きの Google ドーナツ チャートを表示したいAJAX。
問題は、次のページに移動すると、Google チャートが表示/表示/ロードされないことです。最初のロードのデータのみが表示されます。以下は私のサンプルコードです：
index.php
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.12.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#results" ).load("fetch_pages.php"); //load initial records
//executes code below when user click on pagination links
$("#results").on( "click", ".pagination a", function (e){
e.preventDefault();
$(".loading-div").show(); //show loading element
var page = $(this).attr("data-page"); //get page number from link
$("#results").load("fetch_pages.php",{"page":page}, function(){//get content from PHP page
$(".loading-div").hide(); //once done, hide loading element
});
});
});
</script>
<div class="loading-div"><img src="ajax-loader.gif" ></div>
<div id="results"><!-- content will be loaded here --></div>
fetch_pages.php
<?php
/* Title : Ajax Pagination with jQuery & PHP
Example URL : http://www.sanwebe.com/2013/03/ajax-pagination-with-jquery-php */
//continue only if $_POST is set and it is a Ajax request
if(isset($_POST) && isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'){
include("config.inc.php"); //include config file
//Get page number from Ajax POST
if(isset($_POST["page"])){
$page_number = filter_var($_POST["page"], FILTER_SANITIZE_NUMBER_INT, FILTER_FLAG_STRIP_HIGH); //filter number
if(!is_numeric($page_number)){die('Invalid page number!');} //incase of invalid page number
}else{
$page_number = 1; //if there's no page number, set it to 1
}
//get total number of records from database for pagination
$results = $mysqli->query("SELECT COUNT(DISTINCT goals_date) FROM wp_daily_goals WHERE user_ID = '$loguser'");
$get_total_rows = $results->fetch_row(); //hold total records in variable
//break records into pages
$total_pages = ceil($get_total_rows[0]/$item_per_page);
//get starting position to fetch the records
$page_position = (($page_number-1) * $item_per_page);
//Limit our results within a specified range.
$results = $mysqli->prepare("SELECT user_ID, goals_date, TIME_FORMAT(SEC_TO_TIME(SUM(TIME_TO_SEC(total_time))), '%H:%i') AS st_time, SUM(twcm) AS stwcm, SUM(slas) AS sslas, SUM(bas) AS sbas, SUM(iph) AS siph, SUM(ias) AS sias,
SUM(IF(lead_type = 'expireds', twcm + slas + bas + iph + ias, 0)) AS 'expireds',
SUM(IF(lead_type = 'fsbos', twcm + slas + bas + iph + ias, 0)) AS 'fsbos',
SUM(IF(lead_type = 'followup', twcm + slas + bas + iph + ias, 0)) AS 'followup',
SUM(IF(lead_type = 'buyers', twcm + slas + bas + iph + ias, 0)) AS 'buyers',
SUM(IF(lead_type = 'agents', twcm + slas + bas + iph + ias, 0)) AS 'agents',
SUM(IF(lead_type = 'circlemarketing', twcm + slas + bas + iph + ias, 0)) AS 'circlemarketing',
SUM(IF(lead_type = 'doorknocking', twcm + slas + bas + iph + ias, 0)) AS 'doorknocking',
SUM(IF(lead_type = 'investor', twcm + slas + bas + iph + ias, 0)) AS 'investors'
FROM wp_daily_goals WHERE user_ID = '$loguser' GROUP BY goals_date ORDER BY goals_date ASC LIMIT $page_position, $item_per_page");
$results->execute(); //Execute prepared Query
$results->bind_result($user_ID, $goals_date, $st_time, $stwcm, $sslas, $sbas, $siph, $sias, $expireds, $fsbos, $followup, $buyers, $agents, $circlemarketing, $doorknocking, $investors); //bind variables to prepared statement
//Display records fetched from database.
echo '
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {';
while($results->fetch()){ //fetch values google donutchart
echo '$(document).ready(function(){
var data = google.visualization.arrayToDataTable([
["Task", "Hours per Day"],
["Expired - '.$expireds.'", '.$expireds.'],
["FSBOs - '.$fsbos.'", '.$fsbos.'],
["Follow Up - '.$followup.'", '.$followup.'],
["Buyers - '.$buyers.'", '.$buyers.'],
["Agent - '.$agents.'", '.$agents.'],
["Circle Marketing - '.$circlemarketing.'", '.$circlemarketing.'],
["Door Knocking - '.$doorknocking.'", '.$doorknocking.'],
["Investor - '.$investors.'", '.$investors.']
]);
var options = {
title: "My Daily Goals",
pieHole: 0.4,
width: 400, height: 250,
chartArea: {width: "95%", height: "95%"},
legend: {"position":"right","alignment":"center"},
};
var chart = new google.visualization.PieChart(document.getElementById("donutchart"));
chart.draw(data, options);
})';}
echo '};
</script>
<div id="donutchart"></div>
';
echo '<div align="center">';
/* We call the pagination function here to generate Pagination link for us.
As you can see I have passed several parameters to the function. */
echo paginate_function($item_per_page, $page_number, $get_total_rows[0], $total_pages);
echo '</div>';
exit;
}
################ pagination function #########################################
function paginate_function($item_per_page, $current_page, $total_records, $total_pages)
{
$pagination = '';
if($total_pages > 0 && $total_pages != 1 && $current_page <= $total_pages){ //verify total pages and current page number
$pagination .= '<ul class="pagination">';
$right_links = $current_page + 3;
$previous = $current_page - 3; //previous link
$next = $current_page + 1; //next link
$first_link = true; //boolean var to decide our first link
if($current_page > 1){
$previous_link = ($previous==0)? 1: $previous;
$pagination .= '<li class="first"><a href="#" data-page="1" title="First">«</a></li>'; //first link
$pagination .= '<li><a href="#" data-page="'.$previous_link.'" title="Previous"><</a></li>'; //previous link
for($i = ($current_page-2); $i < $current_page; $i++){ //Create left-hand side links
if($i > 0){
$pagination .= '<li><a href="#" data-page="'.$i.'" title="Page'.$i.'">'.$i.'</a></li>';
}
}
$first_link = false; //set first link to false
}
if($first_link){ //if current active page is first link
$pagination .= '<li class="first active">'.$current_page.'</li>';
}elseif($current_page == $total_pages){ //if it's the last active link
$pagination .= '<li class="last active">'.$current_page.'</li>';
}else{ //regular current link
$pagination .= '<li class="active">'.$current_page.'</li>';
}
for($i = $current_page+1; $i < $right_links ; $i++){ //create right-hand side links
if($i<=$total_pages){
$pagination .= '<li><a href="#" data-page="'.$i.'" title="Page '.$i.'">'.$i.'</a></li>';
}
}
if($current_page < $total_pages){
$next_link = ($i > $total_pages) ? $total_pages : $i;
$pagination .= '<li><a href="#" data-page="'.$next_link.'" title="Next" class="next">></a></li>'; //next link
$pagination .= '<li class="last"><a href="#" data-page="'.$total_pages.'" title="Last">»</a></li>'; //last link
}
$pagination .= '</ul>';
}
return $pagination; //return pagination links
}
?>