使用 flask 和 wtforms 在单个页面中的多个提交按钮
Multiple submit button in a single page using flask and wtforms
我正在编写一个 costom 404 处理页面,需要三个按钮(“返回上一页”;“转到主页”;“访问我们的帮助中心”),但是我 运行 进入了一些麻烦,这是我想出来的和我要解决的问题
我的404.HTML
{% extends "layout.html"%}
{% block content %}
<h1>OOF</h1>
<p>We are sorry, but you have reached this page in error.</p>
<p>Please try the action again and if the problem continues, contact Customer Support.</p>
<p>404 Error - Document not found</p>
<form method="POST" action="">
{{ form.hidden_tag() }}
<fieldset class="form-group">
<legend class="border-bottom mb-4"></legend>
</fieldset>
{{ form.submit(class="btn btn-outline-info") }}
{{ form.submit(class="btn btn-outline-info") }}
{{ form.submit(class="btn btn-outline-info") }}
</form>
{% endblock content %}
我的forms.py
class PreviousPage(FlaskForm):
submit = SubmitField("Go back to the previous page")
submit = SubmitField("Go to Home")
submit = SubmitField("Visit our Help Center")
我的routes.py(主要功能)
@app.errorhandler(404)
def page_not_found(e):
form=PreviousPage()
if form.validate_on_submit():
return redirect(url_for('home'))
return render_template('404.html',form=form)
这是我得到的
A picture of my 404 page
按钮的布局完全符合我的预期,但按钮上的文本不正确,因为它全部打印出最后一个按钮的文本。
我面临的另一个问题是不知道如何修改我的 routes.py 文件,以便这三个按钮可以将用户重定向到三个相同的页面。
谢谢
form.py
class PreviousPage(FlaskForm):
submit_pre = SubmitField("Go back to the previous page")
submit_home = SubmitField("Go to Home")
submit_help = SubmitField("Visit our Help Center")
404.HTML
{% extends "layout.html"%}
{% block content %}
<h1>OOF</h1>
<p>We are sorry, but you have reached this page in error.</p>
<p>Please try the action again and if the problem continues, contact Customer Support.</p>
<p>404 Error - Document not found</p>
<form method="POST" action="">
{{ form.hidden_tag() }}
<fieldset class="form-group">
<legend class="border-bottom mb-4"></legend>
</fieldset>
{{ form.submit_pre(class="btn btn-outline-info") }}
{{ form.submit_home(class="btn btn-outline-info") }}
{{ form.submit_help(class="btn btn-outline-info") }}
</form>
{% endblock content %}
至此,第一个问题解决了
@app.errorhandler(404)
def page_not_found(e):
form = PreviousPage()
if form.validate_on_submit():
if form.submit_pre.data:
return redirect(url_for('pre_page'))
if form.submit_home.data:
return redirect(url_for('home_page'))
if form.submit_help.data:
return redirect(url_for('help_page'))
return render_template('404.html', form=form)
至此,第二个问题就解决了
我正在编写一个 costom 404 处理页面,需要三个按钮(“返回上一页”;“转到主页”;“访问我们的帮助中心”),但是我 运行 进入了一些麻烦,这是我想出来的和我要解决的问题
我的404.HTML
{% extends "layout.html"%}
{% block content %}
<h1>OOF</h1>
<p>We are sorry, but you have reached this page in error.</p>
<p>Please try the action again and if the problem continues, contact Customer Support.</p>
<p>404 Error - Document not found</p>
<form method="POST" action="">
{{ form.hidden_tag() }}
<fieldset class="form-group">
<legend class="border-bottom mb-4"></legend>
</fieldset>
{{ form.submit(class="btn btn-outline-info") }}
{{ form.submit(class="btn btn-outline-info") }}
{{ form.submit(class="btn btn-outline-info") }}
</form>
{% endblock content %}
我的forms.py
class PreviousPage(FlaskForm):
submit = SubmitField("Go back to the previous page")
submit = SubmitField("Go to Home")
submit = SubmitField("Visit our Help Center")
我的routes.py(主要功能)
@app.errorhandler(404)
def page_not_found(e):
form=PreviousPage()
if form.validate_on_submit():
return redirect(url_for('home'))
return render_template('404.html',form=form)
这是我得到的 A picture of my 404 page
按钮的布局完全符合我的预期,但按钮上的文本不正确,因为它全部打印出最后一个按钮的文本。 我面临的另一个问题是不知道如何修改我的 routes.py 文件,以便这三个按钮可以将用户重定向到三个相同的页面。
谢谢
form.py
class PreviousPage(FlaskForm):
submit_pre = SubmitField("Go back to the previous page")
submit_home = SubmitField("Go to Home")
submit_help = SubmitField("Visit our Help Center")
404.HTML
{% extends "layout.html"%}
{% block content %}
<h1>OOF</h1>
<p>We are sorry, but you have reached this page in error.</p>
<p>Please try the action again and if the problem continues, contact Customer Support.</p>
<p>404 Error - Document not found</p>
<form method="POST" action="">
{{ form.hidden_tag() }}
<fieldset class="form-group">
<legend class="border-bottom mb-4"></legend>
</fieldset>
{{ form.submit_pre(class="btn btn-outline-info") }}
{{ form.submit_home(class="btn btn-outline-info") }}
{{ form.submit_help(class="btn btn-outline-info") }}
</form>
{% endblock content %}
至此,第一个问题解决了
@app.errorhandler(404)
def page_not_found(e):
form = PreviousPage()
if form.validate_on_submit():
if form.submit_pre.data:
return redirect(url_for('pre_page'))
if form.submit_home.data:
return redirect(url_for('home_page'))
if form.submit_help.data:
return redirect(url_for('help_page'))
return render_template('404.html', form=form)
至此,第二个问题就解决了