根据状态更改JSON的HTML表的单元格颜色 [英] Changing JSON's HTML table's cell color based on status

问题描述

我有一个由JSON创建的HTML表.该表是一所大学硕士的地图，其中列出了您所学专业的所有必修课程.我希望课程的单元格颜色取决于状态.例如，绿色表示课程已完成，黄色表示正在进行中，红色表示需要采取.下面是列，以及createtablefromJSON函数

I have a HTML table created by JSON. The table is a college semaster's map, it lists all the required courses for your major. I want the courses' cell color depends on the status. For example, green means course is completed, yellow means in progress and red means need to be taken. below is the columns, and createtablefromJSON function

var col2 = ["year","term","major1","major2","major3","major4","major5","core1","Core2","Credits"] ;

function CreateTableFromJSON() {
        var myCourses = <?php echo $test1; ?> ;
        var col = [] ;// EXTRACT VALUE FOR HTML HEADER. 
        var col2 = ["year","term","major1","major2","major3","major4","major5","core1","Core2","Credits"] ;
        for (var i = 0; i < myCourses.length; i++) {
            for (var key in myCourses[i]) {
                if (col.indexOf(key) === -1) {
                    col.push(key);
                }
            }
        }
        var table = document.createElement("table");        // CREATE DYNAMIC TABLE.
        // CREATE HTML TABLE HEADER ROW USING THE EXTRACTED HEADERS ABOVE.
        var tr = table.insertRow(-1);                   // TABLE ROW.
        for (var i = 0; i < col2.length; i++) {
            var th = document.createElement("th");      // TABLE HEADER.
            th.innerHTML = col2[i];
            tr.appendChild(th);
        }

我的问题是如何根据课程状态更改单元格的颜色

My question is how to change cell's color based on status of the course

for (var i = 0; i < myCourses.length; i++) {
          tr = table.insertRow(-1);  // ADD JSON DATA TO THE TABLE AS ROWS.
            for (var j = 0; j < col2.length; j++) {
                var tabCell = tr.insertCell(-1);
                tabCell.innerHTML = myCourses[i][col[j]];     
                   if (<?php in_array ?> (myCourses[i][col[j]] <?php  echo ",". json_encode($done_course) ?> )  {
                                  <?php if ($done) { ?> tabCell.className = 'success'; <?php } ?>  }

                   if (<?php in_array ?> (myCourses[i][col[j]] <?php echo ",". json_encode($pending_course) ?> )  {
                                  <?php if ($pending) { ?> tabCell.className = 'pending'; <?php } ?>  }
                          }
                   if (<?php in_array ?> (myCourses[i][col[j]] <?php echo ",". json_encode($progess_course) ?> )  {
                                  <?php if ($progess) { ?> tabCell.className = 'inprocess'; <?php } ?>  }
                          }
                      }     
                  }
              }
        var divContainer = document.getElementById("showData");
        divContainer.innerHTML = "";
        divContainer.appendChild(table);
    }

推荐答案

将php数组转换为js数组.然后使用.includes()函数进行检查

Convert php array to js array. Then use .includes() function to check

 for (var i = 0; i < myCourses.length; i++) {
      tr = table.insertRow(-1);  // ADD JSON DATA TO THE TABLE AS ROWS.
        for (var j = 0; j < col2.length; j++) {
            var tabCell = tr.insertCell(-1);
            var done_course = <?php echo json_encode($done_course); ?> ;
            var pending_course = <?php echo json_encode($pending_course); ?> ;
            var progress_course = <?php echo json_encode($progress_course); ?> ;
            tabCell.innerHTML = myCourses[i][col[j]];     
              if (done_course.includes(myCourses[i][col[j]])) {
                tabCell.className = 'success'; 
              } else if (pending_course.includes(myCourses[i][col[j]])) {
                tabCell.className = 'completed'; }
                  else {
                    tabCell.className = 'inprocess'; }
        }
    }

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