如何使用Smarty将带有新行的文本转换为JavaScript新行

时间:2014-09-23 17:53:57

标签: javascript php string smarty newline

我有一个模板在我正在构建的SugarCRM模块中使用Smart。

下面讨论的智能代码,它基本上遍历一个PHP数组,为每个数组项调用一个JavaScript函数...

{foreach from=$TASKS key=key item=task}
    add_task_row("{$task.task_id}","{$ID}","{$task.name}","{$task.description}","{$task.status}","{$task.priority}","{$task.type}","{$task.sort_order}","{$task.heading}");
{/foreach}

这是上面显示的JavaScript函数......

function add_task_row(taskid,projectid,name,description,status,priority,type,sort,heading){

    var ii = document.getElementById("project_tasks");
    var num = document.getElementById("tasks_count").value;

    // If TaskID is EMPTY, then assign it a new one from the row count
    var taskIDTimeStamp = new Date().getTime();
    //console.log('ID1: '+id);
    if(taskid){
        var taskid = taskid;
    }else{
        var taskid = taskIDTimeStamp;
    }

    num++;

    //var prioritySelHtml = createOptions(priority);

    var e = document.createElement("div");
    e.setAttribute('id','task_'+num);
    e.setAttribute('class','task_row');

    e.innerHTML =  '<span class="handle"></span>';

    e.innerHTML +=  '<input name="taskid_'+num+'" id="taskid_'+num+'" size=15 type="hidden" value="'+taskid+'">';

    e.innerHTML +=  '<input name="projectid_'+num+'" id="projectid_'+num+'" size=15 type="hidden" value="'+projectid+'">';

    e.innerHTML +=  '<input name="sort_order_'+num+'" id="sort_order_'+num+'" class="sort_order" size=15 type="hidden" value="'+sort+'">';

    e.innerHTML +=  '<input name="heading_'+num+'" id="heading_'+num+'" class="heading" size=15 type="hidden" value="'+heading+'">';


    if(heading == 1){

        // Add a Task Heading
        e.innerHTML +=  '<input name="name_'+num+'" id="name_'+num+'" class="task-heading" size=45 type="text" value="'+name+'" placeholder="Type a Project Task List Heading Here...">';
        e.innerHTML += '<div style="display:none; float: left; width:  400px;"><textarea name="description_'+num+'" id="description_'+num+'" rows="4" cols="50">'+description+'</textarea></div>';
        e.innerHTML += '<div style="display:none; float: left; width:  100px;"><select name="status_'+num+'" id="status_'+num+'" class="status">'+buildFormSelection(statusArray, status)+'</select></div>';
        e.innerHTML += '<div style="display:none; float: left; width:  90px;"><select name="priority_'+num+'" id="priority_'+num+'" class="priority">'+buildFormSelection(prioritiesArray, priority)+'</select></div>';
        e.innerHTML += '<div style="display:none; float: left; width:  100px;"><select name="type_'+num+'" id="type_'+num+'" class="type">'+buildFormSelection(typesArray, type)+'</select></div>';
    }else{


    // Add a Task
    e.innerHTML +=  '<input name="name_'+num+'" id="name_'+num+'" size=45 type="text" value="'+name+'">';

        //e.innerHTML += '<input name="description_'+num+'" id="description_'+num+'" size=45 type="text" value="'+description+'">';
        e.innerHTML += '<textarea name="description_'+num+'" id="description_'+num+'" class="edit_description" rows="1" cols="50">'+description+'</textarea>';
        e.innerHTML += '<select name="status_'+num+'" id="status_'+num+'" class="status">'+buildFormSelection(statusArray, status)+'</select>';
        e.innerHTML += '<select name="priority_'+num+'" id="priority_'+num+'" class="priority">'+buildFormSelection(prioritiesArray, priority)+'</select>';
        e.innerHTML += '<select name="type_'+num+'" id="type_'+num+'" class="type">'+buildFormSelection(typesArray, type)+'</select>';
    }

    //e.innerHTML += '<button type="button" onclick="remove_item_row('+num+')"><img src="index.php?entryPoint=getImage&imageName=id-ff-clear.png"></button>';
    e.innerHTML += '<button type="button" onclick="remove_item_row('+num+')"><img src="./modules/apoll_Web_Projects/assets/images/cross.png"></button>';

    e.innerHTML += '<br style="clear:both;">';

    document.getElementById("tasks_count").value = num;
    ii.appendChild(e);

}

每次调用我的JavaScript函数add_task_row()时,它都会在DOM中插入一个新的Project Tasks Div并填充每一行中的表单字段。

这在大多数时候都很有用,但是我只是为数据库保存了一个不同的值,现在当它加载这个值时,会导致像这样的JavaScript错误... Uncaught SyntaxError: Unexpected token ILLEGAL

当我查看页面源时,我可以看到它是1个数据库记录,导致我的源代码出现问题....

add_task_row("1411445999407","205e34c6-7381-92eb-e6ab-54125429cd2a","ghjfghjh","dfg dhfjhg dfgosdjkfgosdfk hgdjfhdhikfgj gsidgisfdgh
fh
dfgh
d tgh
tgj
hfghj
fg hjgh0dgoh igkoiiuwidth: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;width: 679px;","In Progress","Low","Other","3","0");

因此,在上面的代码中,您可以看到这个长数据库值由于某种原因未包含在引号中。

任何想法如何解决这个问题,只有当DB值看起来像特殊字符时才会发生?


UPDATE ,经过进一步检查,我看到长值包含在行情中,经过更多测试,不是导致问题的特殊字符,而是换行符! / p>

add_task_row("1411445999407","205e34c6-7381-92eb-e6ab-54125429cd2a","ghjfghjh","gdf;dgdfdfg 679px;width: 679px;width: 679px;
dsgdfgsdfg


dfgsdfgsdfg


dfgsdfg","In Progress","Low","Other","3","0");

如何使用这些换行符创建字符串不会导致JavaScript错误?

1 个答案:

答案 0 :(得分:1)

这就是将JavaScript字符串放入源代码的方式。你不能简单地去换行。

例如,以下代码正在运行

alert('1 2 3 4');

但以下情况并非如此:

alert('1
2 3 4');

以下内容再次有效:

alert('1' +
'2 3 4');

如果您想在Smarty中进行任何更改,您可以这样做:

{assign var="string" value="1
2
3
4"}
<script>

    alert ("{$string|replace:array("\n","\r"):array(' ', '')}");
</script>

使用replace修饰符,您可以将\r\n更改为空格 - 这会使内容发生变化,但如果您不在乎它应该有效。

另一个解决方案是将新行结尾转换为普通\n字符串,使JavaScript将它们视为新行,以便您可以将上面的示例更改为:

{assign var="string" value="1
2
3
4"}
<script>

alert ("{$string|replace:array("\n","\r"):array('\n', '\n')}");
</script>

现在处于警戒状态,您将显示新行。

所以在你的情况下你应该更改一行:

add_task_row("{$task.task_id}","{$ID}","{$task.name}","{$task.description}","{$task.status}","{$task.priority}","{$task.type}","{$task.sort_order}","{$task.heading}");

add_task_row("{$task.task_id}","{$ID}","{$task.name}","{$task.description|replace:array("\n","\r"):array('\n', '\n')}","{$task.status}","{$task.priority}","{$task.type}","{$task.sort_order}","{$task.heading}");