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时约束错误冉以这种迁移到具有唯一索引帐号凤凰外生独特的验证:在试图插入结构
def change do
create unique_index(:users, [:account_number])
end
然后在模型:
def changeset(struct, params \\ %{}) do
struct
|> cast(params, [:first_name, :last_name, :email, :phone, :city, :postal_code, :country, :login_count, :last_login, :active, :account_number, :password])
|> validate_required([:first_name, :last_name, :email, :phone, :city, :postal_code, :country, :account_number])
|> validate_length(:password, min: 8, max: 100)
|> validate_format(:email, ~r/@/)
|> unique_constraint(:email)
|> unique_constraint(:account_number)
|> put_pass_hash()
end
生成此错误:
** (Ecto.ConstraintError) constraint error when attempting to insert struct:
* unique: users_account_number_index
If you would like to convert this constraint into an error, please
call unique_constraint/3 in your changeset and define the proper
constraint name. The changeset has not defined any constraint.
的PostgreSQL 9.6
凤凰1.2.4
Ecto 2.1.4
我在想什么?
'的变更没有定义任何constraint.'很奇怪。你确定这个'changeset'函数在'User'模型中,并且你插入了这个函数返回的Changeset吗? – Dogbert
那一切都编译好了吗? –