Question

我在OpenERP / PostgreSQL中有一个表，其中包含以下列：name和description。

我为唯一名称添加了以下验证：

_sql_constraints = [('unique_name', 'unique(name)', 'A record with the same name already exists.')]

它工作正常，但它区分大小写。目前，它接受诸如“Mickey”，“MICKEY”和“mickey”之类的值：

Wrong Way:
--------------------------
| name   | description   |
--------------------------
| mickey | not a mouse   |
--------------------------
| MICKEY | not a mouse   |
--------------------------
| Mickey | not a mouse   |
--------------------------

有没有办法修改验证码，以便它不允许用户添加多个值，如“Mickey”，“MICKEY”和“mickey”？如何使唯一密钥验证不敏感？

Right Way:
--------------------------------
| name         | description   |
--------------------------------
| mickey       | not a mouse   |
--------------------------------
| mickey mouse | is a mouse    |
--------------------------------
| donald       | is a duck     |
--------------------------------

Answer 1

case insensitive constraints结帐HERE 否则你总是可以使用Openerp Constraints而不是SQL。

for openerp Constraints

检查示例

def _check_unique_insesitive(self, cr, uid, ids, context=None):
    sr_ids = self.search(cr, 1 ,[], context=context)
    lst = [
            x.FIELD.lower() for x in self.browse(cr, uid, sr_ids, context=context)
            if x.FIELD and x.id not in ids
          ]
    for self_obj in self.browse(cr, uid, ids, context=context):
        if self_obj.FILD and self_obj.FILD.lower() in  lst:
            return False
    return True

_constraints = [(_check_unique_insesitive, 'Error: UNIQUE MSG', ['FIELD'])]

Answer 2

这种方式无需读取数据库中的所有数据：

def _check_unique_insesitive(self, cr, uid, ids, context=None):

    for self_obj in self.browse(cr, uid, ids, context=context):
        if self_obj.name and self.search_count(cr, uid, [('name', '=ilike', self_obj.name), ('id', '!=', self_obj.id)], context=context) != 0:
            return False

    return True

_constraints = [(_check_unique_insesitive, _('The name must be unique!'), ['name'])]

Answer 3

以更简单的方式在Odoo 8.0或更高版本中使用约束。获取模型的所有记录，并使用lower（）检查所需的字段值，并排除自记录。

@api.constrains('code')
def _check_duplicate_code(self):
    codes = self.search([])
        for c in codes:
            if self.code.lower() == c.code.lower() and self.id != c.id:
                raise exceptions.ValidationError("Error: code must be unique")

OpenERP唯一约束

3 个答案: