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[英]How to insert multiple rows of data from dynamically generated rows into a database using Python Django
[英]How Can I Insert Multiple Rows Into a DB from my HTML Form with Multiple Rows Dynamically?
所以這就是我的情況。 我有一個表單,使用戶能夠向表單添加任意數量的行,並向這些新創建的行中輸入更多數據(使用javascript)。 我已經在以下代碼中進行了設置(我正在使用index.html,js / scripts.js和php / upload.php文件,所有這些文件都是外部鏈接的,包括外部CSS):
INDEX.HTML
<html>
<header>
<link rel="stylesheet" href="style.css" type="text/css">
<script type="text/javascript" language="javascript" src="/jquery/js/jquery-1.9.1.js">
</script>
<script src="http://www.mapquestapi.com/sdk/js/v7.0.s/mqa.toolkit.js?
key=Gmjtd%7Cluua2q6bn9%2C8g%3Do5-lzbsh"></script>
<script type="text/javascript" src="js/scripts.js"></script>
<title>Central Office Company Survey</title>
</header>
<body onload="get_company_name();">
<h1>Central Office Company Survey</h1>
<div id='map' style='width:0px; height:0px; position:absolute'></div>
<input type="hidden" id="co_city">
<input type="hidden" id="co_state">
<input type="hidden" id="co_zipcode">
<table>
<th>Company</th>
<th>CO Name</th>
<th>Get Current Location</th>
<th>Lat</th>
<th>Long</th>
<th>Address</th>
<tr>
<td><select id="company_name"></select></td>
<td><input id="co_name" type="text"></td>
<td><input type="submit" value="Get GPS" onclick="gpslookup()"></td>
<td><input id="co_lat" type="text"></td>
<td><input id="co_long" type="text"></td>
<td><input id="co_address" type="text"></td>
</tr>
</table>
<table id="tabledata">
<th>Select</th>
<th>Border Location Name</th>
<th>Cable Location</th>
<th>Direction of Vault Wall</th>
<th>Cable Type</th>
<th>Cable Size (pairs)</th>
<th>Cable Gauge</th>
<th>Vertical(s) appeared on Verticals</th>
<th>Approximate Number of Jumpers</th>
<th>Are Protectors Still In?</th>
<th>Metered Distance</th>
<th class="comments">Central Office Comments</th>
<!--Begin Rows-->
<tr>
<td><input type="checkbox"></td>
<td><input id="border_location" type="text" name="txt[]"></td>
<td><input id="cable_location" type="text" name="txt[]"></td>
<td><input id="vault_direction" type="text" name="txt[]"></td>
<td><input id="cable_type" type="text" name="txt[]"></td>
<td><input id="cable_size" type="text" name="txt[]"></td>
<td><input id="cable_gauge" type="text" name="txt[]"></td>
<td><input id="vertical" type="text" name="txt[]"></td>
<td><input id="jumpers" type="text" name="txt[]"></td>
<td><input id="protectors" type="text" name="txt[]"></td>
<td><input id="metered_dist" type="text" name="txt[]"></td>
<td><input id="comments" type="text" name="txt[]"></td>
</tr>
</table>
<input id="addrow_btn" type="submit" value="Add New Row" onclick="addRow(); return false;" />
<input id="delrow_btn" type="submit" value="Delete Row" onclick="deleteRow(); return false;" />
<input id="submit" type="submit" value="Submit" onclick="uploaddata(); return false;" />
</body>
</html>
至於后端,我只有PHP和服務器端腳本能夠使用以下代碼為第一行提交信息:
JAVASCRIPT文件
function addRow() {
var table = document.getElementById("tabledata");
var rowCount = table.rows.length;
var row = table.insertRow(rowCount);
var colCount = table.rows[1].cells.length;
for(var i=0; i<colCount; i++) {
var newcell = row.insertCell(i);
newcell.innerHTML = table.rows[1].cells[i].innerHTML;
//alert(newcell.childNodes);
switch(newcell.childNodes[0].type) {
case "text":
newcell.childNodes[0].value = "";
break;
case "checkbox":
newcell.childNodes[0].checked = false;
break;
}
}
//UPLOAD DATA
//Global variables
var survey = {
'co_name' : "",
'co_lat' : "",
'co_long' : "",
'co_address' : "",
'border_location' : "",
'cable_location' : "",
'vault_direction' : "",
'cable_type' : "",
'cable_size' : "",
'cable_gauge' : "",
'vertical' : "",
'jumpers' : "",
'protectors' : "",
'metered_dist' : "",
'comments' : "",
'company_name' : "",
'co_city' : "",
'co_state' : "",
'co_zipcode' : ""
}
function uploaddata() {
//Read all of the data from the page
for (eID in survey) {
survey[eID] = document.getElementById(eID).value;
}
//Insert data into database
$.ajax({
type: 'POST',
url: './php/upload_survey.php',
data: survey,
async: false,
dataType: 'text',
success: function() {
alert("Thank you. Your survey has been submitted.");
window.location.reload();
},
error: function(jqXHR, textStatus, errorThrown) {
alert("Error... " + textStatus + "\n" + errorThrown);
}
});
}
PHP文件
//Assign passed parameters
$co_name = $_POST['co_name'];
$co_lat = $_POST['co_lat'];
$co_long = $_POST['co_long'];
$co_address = $_POST['co_address'];
$border_location = $_POST['border_location'];
$cable_location = $_POST['cable_location'];
$vault_direction = $_POST['vault_direction'];
$cable_type = $_POST['cable_type'];
$cable_size = $_POST['cable_size'];
$cable_gauge = $_POST['cable_gauge'];
$vertical = $_POST['vertical'];
$jumpers = $_POST['jumpers'];
$protectors = $_POST['protectors'];
$metered_dist = $_POST['metered_dist'];
$comments = $_POST['comments'];
$txt = $_POST['txt'];
$stringLogInfo = "INFO: Location: $co_address CO Name = $co_name !!!\n\n";
log_audit($logAuditFile, $logModule, $stringLogInfo);
//Parse and store the ini file, this will return an associative array
ini_set("display_errors", "1");
error_reporting(E_ALL);
//Insert Survey Form Information into the database
$fieldlist=$vallist='';
foreach ($_POST as $key => $value) {
$fieldlist.=$key.',';
$vallist.='\''.$value.'\',';
}
$fieldlist=substr($fieldlist, 0, -1);
$vallist=substr($vallist, 0, -1);
$sql='INSERT INTO table_name ('.$fieldlist.') VALUES ('.$vallist.')';
mysql_query($sql) or die ("Unable to Make Query:" . mysql_error());
到目前為止,我的目標是已經准備好其他所有東西,以便能夠遍歷表單中的所有數據,這取決於它們創建了多少行並將所有這些新行值提交到SQL數據庫中並列為SEPARATE行。 請指教!
這里着重討論這個問題的HTML部分,是一種動態增長表單的方法:
首先是HTML:
<table id="tabledata">
<thead>
<th>Select</th>
<th>Border Location Name</th>
<th>Cable Location</th>
<th>Direction of Vault Wall</th>
<th>Cable Type</th>
<th>Cable Size (pairs)</th>
<th>Cable Gauge</th>
<th>Vertical(s) appeared on Verticals</th>
<th>Approximate Number of Jumpers</th>
<th>Are Protectors Still In?</th>
<th>Metered Distance</th>
<th class="comments">Central Office Comments</th>
</thead>
<tbody id="input"></tbody>
<tbody id="template">
<tr>
<td><input name="selected" type="checkbox" /></td>
<td><input name="border_location" type="text" /></td>
<td><input name="cable_location" type="text" /></td>
<td><input name="vault_direction" type="text" /></td>
<td><input name="cable_type" type="text" /></td>
<td><input name="cable_size" type="text" /></td>
<td><input name="cable_gauge" type="text" /></td>
<td><input name="vertical" type="text" /></td>
<td><input name="jumpers" type="text" /></td>
<td><input name="protectors" type="text" /></td>
<td><input name="metered_dist" type="text" /></td>
<td><input name="comments" type="text" /></td>
</tr>
</tbody>
</table>
<button id="ActionAddRow">Add Row</button>
<button id="ActionSubmit">Submit</button>
和這個JavaScript:
$(function () {
var addInputRow = function () {
$('#input').append($('#template').html());
};
addInputRow();
$('#ActionAddRow').on('click', addInputRow);
$('#ActionSubmit').on('click', function () {
var data = $('#input tr').map(function () {
var values = {};
$('input', $(this)).each(function () {
if (this.type === 'checkbox') {
values[this.name] = this.checked;
} else {
values[this.name] = this.value;
}
});
return values;
}).get();
$.post('/echo/json/', {
json: JSON.stringify(data),
delay: 1
}).done(function (response) {
alert("POST success");
console.log(response);
});
});
});
然后這個CSS:
tbody#template {
display: none;
}
制作這個演示
這是正在發生的事情的分解。 首先, table
元素可以定義多個主體,因此,我添加了一個空輸入行的HTML,並將其隱藏(使用CSS)在帶有ID
為template
的tbody
中。 然后,我使用JavaScript定義了一個簡單函數,該函數只是將該行的內容附加到帶有inputs
ID的tbody
,並將該函數綁定到button
的click
事件。 然后,因為輸入tbody
為空開始,所以我一次調用了該函數。 然后,為了提交表單,我選擇了inputs
tbody
所有行,並遍歷了其中的所有inputs
。 接下來,我將它們組合成一個大的JavaScript對象數組,每個元素代表一行,最后我將其發布,展示了從客戶端到服務器的往返數據(我正在使用JSON2.js進行序列化數據)。 您的PHP頁面將在此處進行拾取以在服務器上進行檢查,然后(使用准備好的語句)將有效行插入數據庫。
您的PHP將采用這樣的POSTed值:
$value = json_decode($_POST['json']);
並將提交的數據視為關聯數組。 這種方法使用AJAX表單發布,因此PHP頁面的響應應為有效的JSON,其結構如下所示:
{Success: true}
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