我该如何发送这个display_false()
使用 jQuery 向服务器发送函数,以便在不刷新页面的情况下更新数据库?
def display_false():
if display == "false":
main_id = self.request.get("main_id")
k = Main.get_by_id(int(main_id))
k.display = False
k.put()
display_false()
首先我用这个 jQuery 隐藏一个表行(看我之前的问题 https://stackoverflow.com/questions/7694560/how-to-hide-a-table-row-with-jquery):
$(document).ready(function() {
$("a.false").click(function(e) {
$(this).closest("tr.hide").hide("slow");
e.preventDefault();
});
然后我想将数据库中的“显示”属性更新为“假”display_false()
以便不显示该项目。
这是隐藏链接所在的 html:
for item in e:
main_id = item.key().id()
...
<tr class="hide">
...
<a class="false" href="/useradminpage?main_id=%s&display=false"><span class="small">(hide)</span></a>
...
</td>
</tr>
...
Thanks!
Update
这是我尝试过的保罗的回答 https://stackoverflow.com/questions/7696540/how-to-update-database-with-jquery-without-refreshing-the-page/7696578#7696578,但这不起作用。
$(document).ready(function() {
//hide the row
$("a.false").click(function(e) {
$(this).closest("tr.hide").hide("slow");
e.preventDefault();
});
$("a.false").click(function() {
//ajax server call
$.ajax({
url: "/useradminpage?main_id=%s&display=false",
success: function(data) {
//do some stuff.
display_false()
alert('returned');
}
});
});
});
Update
我按照保罗的建议设置了警报以查看正在运行的内容。警报 1、2 和 3 正在运行,但警报 4 未运行:
$(document).ready(function() {
alert("1 - document ready is called")
$("a.false").click(function(e) {
$(this).closest("tr.hide").hide("slow");
e.preventDefault();
alert("2 - row is hidden")
});
$("a.false").click(function() {
//ajax server call
alert("3 - ajax server call")
$.ajax({
url: "/useradminpage?main_id=%s&display=false",
success: function(data) {
//do some stuff.
display_false()
alert(4 - "returned");
}
});
});
});
Update
这是表中该部分的代码部分;我正在尝试获取main_id
并将其传递给 ajax 调用:
#-----------main table------------#
main_id = self.request.get("main_id")
self.response.out.write("""<table class="mytable">
<tr class="head">
<th width="80%">links</th><th>edit tags</th>
</tr>
""")
query = Main.all()
query.filter("owner", user)
query.filter("display", True)
query.order("-date")
cursor = self.request.get("cursor")
if cursor: query.with_cursor(cursor)
e = query.fetch(100)
cursor = query.cursor()
for item in e:
main_id = item.key().id()
self.response.out.write("""
<tr class="hide">
<td><a href="%s" target="_blank">%s</a><span class=small> (%s) </span><br />
<span class=small>%s</span>
<a href="/edit?main_id=%s"><span class="small">(edit)</span></a>
<a class="false" href="/useradminpage?main_id=%s&display=false"><span class="small">(hide)</span></a>
<a href="/comment?main_id=%s"><span class="small">(comments)</span></a></td>
<td><a href="/tc?url=%s&main_id=%s&user_tag_list=%s" title="edit tags">%s</a>
</td>
</tr>
""" % tuple([item.url, item.title, urlparse(item.url).netloc,
f1.truncate_at_space(item.pitch), main_id, main_id, main_id,
item.url, main_id, (", ".join(item.tag_list)),
(", ".join(item.tag_list)),]))
self.response.out.write("""</tbody></table>""")
display = self.request.get("display")
def display_false():
if display == "false":
main_id = self.request.get("main_id")
k = Main.get_by_id(int(main_id))
k.display = False
k.put()
display_false()
与 Paul 讨论后更新以获取隐藏行的 id 号:
<script>
$(document).ready(function() {
alert("1 - document ready is called")
$("a.false").click(function(e) {
$(this).closest("tr.hide").hide("slow");
e.preventDefault();
alert("2 - row is hidden")
});
$("a.false").click(function() {
alert(this.attr("title"));
$.ajax({
url: "/useradminpage?main_id=%s&display=false",
success: function(data) {
display_false()
alert(4 - "returned");
}
});
});
});
</script>