Web2py表单字段选项 [英] Web2py form field options

问题描述

我使用的是web2py表单，我希望有一些只对用户可见的字段（固定不可编辑）。我尝试过编辑，可写，只读的各种组合，但没用。我也查看了web2py书籍，但这似乎还不够。如果有人能告诉我如何做到这一点，那将是非常棒的。

解决方案

只有在登录后才可见？

如果是这种情况，请有条件地构建您的表单：

  form_fields = [
 Field（'pubfield'），
 Field（'pubfield2'）
] 
 
如果auth.user：＃This如果最终用户登录并且您使用的是内置身份验证
 form_fields.append（Field（'private_field'））
 
 return dict（form = FORM（ form_fields））
  

除非你不是在谈论登录用户，只是想让这些字段可见，但不可编辑。然后，像您尝试的那样使用writable = False，但我认为您必须使用crud.create / crud.update或SQLFORM / SQLFORM.factory（后者不需要数据模型）。​​

  SQLFORM.factory（Field（'my_readable_field'，writable = False））
  

如果表单基于数据库，则可以使用CRUD（如果不使用验证，则需要修改CRUD的设置，以便可以访问CRUD表单）

  crud.create（db.some_table）
  

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$ b $ $ $ $ $ p $ $ $ $ $ c>

I am using web2py forms and i want to have some fields only visible to user (as fixed which cannot be edited). I tried making various combinations of editable, writeable, readonly but was of no use. I looked into web2py book too but that also seems insufficient. It would be great if someone can tell me how to do this.

解决方案

You mean some fields visible to all visitors and some fields visible only if logged in?

If that's the case, then build your form conditionally:

form_fields = [
  Field('pubfield'),
  Field('pubfield2')
]

if auth.user: # This is true if the end-user is logged in and you're using the built-in auth
  form_fields.append(Field('private_field'))

return dict(form=FORM(form_fields))

Unless you're not talking about logged in users, and just want to make the fields be visible, but not editable. Then, use writable=False like you tried, but I think you have to either use crud.create/crud.update or SQLFORM / SQLFORM.factory (the latter does not require a data model)

SQLFORM.factory(Field('my_readable_field', writable=False))

If you the form is based off of a database, you can use CRUD (you'll need to modify the settings for CRUD if you're not using authentication, so that CRUD forms are accessible)

crud.create(db.some_table)

or

SQLFORM(db.some_table)

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