使用Flask，Jinja2模板渲染可编辑表格，然后处理返回的表单数据 [英] Render an editable table using Flask, Jinja2 templates, then process the form data returned
问题描述
我正在使用Flask和Jinja2，我需要制作一个具有多行的可编辑表.
I'm using Flask and Jinja2 and I need to make an editable table with multiple rows.
这是表格的样子:
这是用于此的HTML
And here's HTML for that:
<form action="/support/team-members-update" method="post">
<table>
<tbody><tr>
<th>Name</th>
<th>Id</th>
<th>Inbox Share</th>
</tr>
<tr>
<td>Ben</td><td>55555</td><td><input type="text" name="share_55555" value="0"></td></tr> <tr>
<td>Steve</td><td>66666</td><td><input type="text" name="share_66666" value="1"></td></tr> <tr>
<td>Harry</td><td>77777</td><td><input type="text" name="share_77777" value="1"></td></tr> <tr>
<td>Sally</td><td>88888</td><td><input type="text" name="share_88888" value="1"></td></tr></tbody></table>
<button type="submit">Send</button>
</form>
我当前的实现是在Lua中，在这里我很难对一堆字符串进行编码，并手工将发布数据连接到本地Lua类型(很有趣！).如果需要的话，我也可以在Python中手动处理表单数据，但是我想那里可能有更好的解决方案.
My current implementation is in Lua, where I'm hard coding a bunch of strings and connecting up the post data to native Lua types by hand (fun!). If I have to, I can process the form data by hand in Python as well, but I imagine there's probably a better solution out there.
我对WTForms进行了一些探讨，但运气不佳，无法使其正常工作.
I have explored WTForms a bit, but haven't had much luck getting it to work correctly.
我确实找到了 FieldList ，但是似乎处理的是相同字段的列表，而不是具有相同确切字段的多行.
I did find FieldList, but that seems to deal with a list of the same field, not multiple rows with the same exact fields.
我还找到了 TableWidget ，但是该文档稀疏，我无法弄清楚如何实现它来确定它是否可以满足我的期望.
I also found TableWidget, but the documentation is sparse and I can't figure out how to implement it to know if that would do what I'm looking to do.
推荐答案
FieldList will work, you need to make a list of a FormField. Specify your FormField like so:
class MemberForm(Form):
name = StringField('name')
member_id = StringField('member_id')
inbox_share = IntegerField('inbox_share')
# etc.
class TeamForm(Form):
title = StringField('title')
teammembers = FieldList(FormField(MemberForm))
然后，您可以像这样在视图函数中从数据库中创建表单:
Then you can create the forms from your database in a view function like so:
@app.route('/support/team-members-update', methods=['GET','POST'])
def update_team_members():
teamform = TeamForm()
teamform.title.data = "My Team" # change the field's data
for member in DB.get('teammembers') # some database function to get a list of team members
member_form = MemberForm()
member_form.name = member.name # These fields don't use 'data'
member_form.member_id = member.id
member_form.inbox_share = member.share
teamform.teammembers.append_entry(member_form)
return render_template('edit-team.html', teamform = teamform)
然后在模板中，您可以在创建表行时遍历teammembers中的每个项目:
And then in the template, you can iterate over each item in teammembers as you create your table rows:
<html>
<head>
<title>Edit Team Members</title>
</head>
<body>
<h1>Edit Team</h1>
<div>
<form action="" method="post" name="teamform">
{{ teamform.hidden_tag() }}
Team Title: {{ teamform.title }}<br>
<div>
<table>
<tr>
<th> Name </th>
<th> ID </th>
<th> Inbox Share </th>
</tr>
{% for member in teamform.teammembers %}
<tr>
<td>{{ member.name }}</td>
<td>{{ member.member_id }}</td>
<td>{{ member.inbox_share }}</td>
</tr>
{% endfor %}
</table>
</div>
<p><input type="submit" name="edit" value="Send"></p>
</form>
</div>
</body>
</html>
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