[英]Save a JSON array to database in rails with strong_params
I'm trying to update a users' attributes. 我正在尝试更新用户的属性。 All of the attributes are either strings or integers but I have one signature field which is a JSON object.
所有属性都是字符串或整数,但是我有一个签名字段,它是一个JSON对象。
Here are my params from the log: 这是日志中的参数:
{"first_name"=>"Jackson", "last_name"=>"Cunningham", "email"=>"jackson@gmail.com", "phone"=>"", "address"=>"", "city"=>"", "province"=>""},
"signature"=>"[{\"lx\":80,\"ly\":4,\"mx\":80,\"my\":3},{\"lx\":78,\"ly\":3,\"mx\":80,\"my\":4},{\"lx\":72,\"ly\":4,\"mx\":78,\"my\":3},
{\"lx\":67,\"ly\":5,\"mx\":72,\"my\":4},{\"lx\":64,\"ly\":7,\"mx\":67,\"my\":5},
{\"lx\":60,\"ly\":9,\"mx\":64,\"my\":7},{\"lx\":51,\"ly\":13,\"mx\":60,\"my\":9},
{\"lx\":45,\"ly\":16,\"mx\":51,\"my\":13},
{\"lx\":41,\"ly\":19,\"mx\":45,\"my\":16},
{\"lx\":38,\"ly\":20,\"mx\":41,\"my\":19},
{\"lx\":39,\"ly\":20,\"mx\":38,\"my\":20},
{\"lx\":54,\"ly\":42,\"mx\":55,\"my\":42}]",
"commit"=>"Save", "id"=>"1"}
Update action and strong params method: 更新动作和强参数方法:
def update
@user = current_user
if @user.update_attributes(user_params)
redirect_to dashboard_path
else
render :edit
end
end
protected
def user_params
params.require(:user).permit(
:first_name, :last_name, :phone, :email, :password_digest, :address, :city, :province, :signature)
end
Everything is updating except the :signature, which is showing up in params[:signature] but not when I call user_params. 一切都在更新,除了:签名,这是表示PARAMS了[:签名]但不是当我打电话user_params。
How to fix? 怎么修? How do I get this JSON string through strong params?
如何通过强参数获取此JSON字符串?
It's because signature
is not inside the user attributes. 这是因为
signature
不在用户属性内。 You have: 你有:
{
"first_name" => "Jackson",
"last_name" => "Cunningham",
// etc.
},
"signature" => "asasfafsafs"
But what you actually want is: 但是,您真正想要的是:
{
"first_name" => "Jackson",
"last_name" => "Cunningham",
"signature" => "asasfafsafs",
// etc.
}
So in your HTML form, you should have something like <input name="user[signature]">
instead of <input name="signature">
. 因此,在您的HTML表单中,您应该使用
<input name="user[signature]">
而不是<input name="signature">
。
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