我试图实现类似的效果，发票线形式，其中某些列显示或消失(编辑视图?)基于下拉列表中的选择。
我正试图研究在account_invoice_layout中实现此效果的代码，但它有点难以理解。
完整代码:
class account_invoice_line(osv.osv):
def move_line_get_item(self, cr, uid, line, context=None):
if line.state != 'article':
return None
return super(account_invoice_line, self).move_line_get_item(cr, uid, line, context)
def fields_get(self, cr, uid, fields=None, context=None):
article = {
'article': [('readonly', False), ('invisible', False)],
'text': [('readonly', True), ('invisible', True), ('required', False)],
'subtotal': [('readonly', True), ('invisible', True), ('required', False)],
'title': [('readonly', True), ('invisible', True), ('required', False)],
'break': [('readonly', True), ('invisible', True), ('required', False)],
'line': [('readonly', True), ('invisible', True), ('required', False)],
}
states = {
'name': {
'break': [('readonly', True),('required', False),('invisible', True)],
'line': [('readonly', True),('required', False),('invisible', True)],
},
'product_id': article,
'account_id': article,
'quantity': article,
'uos_id': article,
'price_unit': article,
'discount': article,
'invoice_line_tax_id': article,
'account_analytic_id': article,
}
res = super(account_invoice_line, self).fields_get(cr, uid, fields, context)
for field in res:
if states.has_key(field):
for key,value in states[field].items():
res[field].setdefault('states',{})
res[field]['states'][key] = value
return res
def onchange_invoice_line_view(self, cr, uid, id, type, context=None, *args):
if (not type):
return {}
if type != 'article':
temp = {'value': {
'product_id': False,
'uos_id': False,
'account_id': False,
'price_unit': False,
'price_subtotal': False,
'quantity': 0,
'discount': False,
'invoice_line_tax_id': False,
'account_analytic_id': False,
},
}
if type == 'line':
temp['value']['name'] = ' '
if type == 'break':
temp['value']['name'] = ' '
if type == 'subtotal':
temp['value']['name'] = 'Sub Total'
return temp
return {}
def create(self, cr, user, vals, context=None):
if vals.has_key('state'):
if vals['state'] == 'line':
vals['name'] = ' '
if vals['state'] == 'break':
vals['name'] = ' '
if vals['state'] != 'article':
vals['quantity']= 0
vals['account_id']= self._default_account(cr, user, None)
return super(account_invoice_line, self).create(cr, user, vals, context)
def write(self, cr, user, ids, vals, context=None):
if vals.has_key('state'):
if vals['state'] != 'article':
vals['product_id']= False
vals['uos_id']= False
vals['account_id']= self._default_account(cr, user, None)
vals['price_unit']= False
vals['price_subtotal']= False
vals['quantity']= 0
vals['discount']= False
vals['invoice_line_tax_id']= False
vals['account_analytic_id']= False
if vals['state'] == 'line':
vals['name'] = ' '
if vals['state'] == 'break':
vals['name'] = ' '
return super(account_invoice_line, self).write(cr, user, ids, vals, context)
def copy_data(self, cr, uid, id, default=None, context=None):
if default is None:
default = {}
default['state'] = self.browse(cr, uid, id, context=context).state
return super(account_invoice_line, self).copy_data(cr, uid, id, default, context)
def _fnct(self, cr, uid, ids, name, args, context=None):
res = {}
lines = self.browse(cr, uid, ids, context=context)
account_ids = [line.account_id.id for line in lines]
account_names = dict(self.pool.get('account.account').name_get(cr, uid, account_ids, context=context))
for line in lines:
if line.state != 'article':
if line.state == 'line':
res[line.id] = '-----------------------------------------'
elif line.state == 'break':
res[line.id] = 'PAGE BREAK'
else:
res[line.id] = ' '
else:
res[line.id] = account_names.get(line.account_id.id, '')
return res
_name = "account.invoice.line"
_order = "invoice_id, sequence asc"
_description = "Invoice Line"
_inherit = "account.invoice.line"
_columns = {
'state': fields.selection([
('article','Product'),
('title','Title'),
('text','Note'),
('subtotal','Sub Total'),
('line','Separator Line'),
('break','Page Break'),]
,'Type', select=True, required=True),
'sequence': fields.integer('Sequence Number', select=True, help="Gives the sequence order when displaying a list of invoice lines."),
'functional_field': fields.function(_fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='char', fnct_search=None, obj=None, store=False, string="Source Account"),
}
def _default_account(self, cr, uid, context=None):
cr.execute("select id from account_account where parent_id IS NULL LIMIT 1")
res = cr.fetchone()
return res[0]
_defaults = {
'state': 'article',
'sequence': 0,
}
account_invoice_line ()
fields_get方法到底做什么?什么时候执行?上面的代码如何编辑视图?
谢谢。
实际上fields_get()返回模块的字段定义。在Fields定义中，您可以提供states参数。
默认情况下，在字段定义上是这样工作的:
states = {'draft':[('readonly','=',True)]}
当state form为'draft'时，将字段设置为只读。
变量states和articles存储相同的值。现在在你给我们展示的模块中，状态字段的值与通常的值不同:
[('article','Product'),
('title','Title'),
('text','Note'),
('subtotal','Sub Total'),
('line','Separator Line'),
('break','Page Break'),]
在fields_get()函数的最后一部分，我们有:
res = super(account_invoice_line, self).fields_get(cr, uid, fields, context)
for field in res:
if states.has_key(field):
for key,value in states[field].items():
res[field].setdefault('states',{})
res[field]['states'][key] = value
return res
它使用超类的方法，它是这样工作的:
fields_get()带fields参数返回模块上存在的字段。你的模块只是强制每个字段的state参数
最后，它允许根据fictif状态字段显示字段。在你的例子中:
- 如果一行处于'article'状态，默认显示
- 如果一行处于'title'状态，则显示为不可见且只读。
我认为这些状态值在这里是用来区分一行是标题、文章还是其他。
所以，如果你想在自己的模块中做同样的事情，复制/粘贴这个fields_get()函数定义，自定义你的文章和状态变量，不要忘记适应，如果需要，状态字段定义上的_columns类属性。
希望我帮到你了，
Nonow