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我有這種形式,但未通過SQLFORM方法建立,Web2Py - 如何使字段啓用?
flow_step_forms[step.name] = SQLFORM(db.approval_flows_progress_steps,
record=thisstep.id if thisstep is not None else None,
readonly=not __userCanPerformStep(step) or flow_completed)
分貝爲approval_flows_progress_steps如下
db.define_table('approval_flows_progress_steps',
Field('flow_progress', 'reference approval_flows_progress'),
Field('flow_step', 'reference approval_flows_steps'),
Field('completed', 'boolean'),
Field('completed_on', 'datetime'),
Field('completed_by', 'reference auth_user'),
Field('notes', 'text', writable = True),
auth.signature
)
領域筆記被呈現爲一個文本框。
後,我分配SQLFORM有這樣的代碼:
if __userCanPerformStep(step) and not flow_completed:
flow_step_forms[step.name].element('textarea')['_rows'] = 5
我想我可以參考DB的性能像他們這樣做here,但我得到了以下錯誤: 「NoneType」對象沒有屬性'可寫'
問:如何使某些用戶有條件啓用文本框?