from flask_sqlalchemy import SQLAlchemy
from flask_marshmallow import Marshmallow
from marshmallow import fields
from marshmallow.validate import (
    URL, Email, Range, Length, Equal, Regexp,
    Predicate, NoneOf, OneOf, ContainsOnly
)

URL.default_message = '无效的链接'
Email.default_message = '无效的邮箱地址'
Range.message_min = '不能小于{min}'
Range.message_max = '不能小于{max}'
Range.message_all = '不能超过{min}和{max}这个范围'
Length.message_min = '长度不得小于{min}位'
Length.message_max = '长度不得大于{max}位'
Length.message_all = '长度不能超过{min}和{max}这个范围'
Length.message_equal = '长度必须等于{equal}位'
Equal.default_message = '必须等于{other}'
Regexp.default_message = '非法输入'
Predicate.default_message = '非法输入'
NoneOf.default_message = '非法输入'
OneOf.default_message = '无效的选择'
ContainsOnly.default_message = '一个或多个无效的选择'

fields.Field.default_error_messages = {
    "required": "缺少必要数据",
    "null": "数据不能为空",
    "validator_failed": "非法数据",
}

fields.Str.default_error_messages = {
    'invalid': "不是合法文本"
}

fields.Int.default_error_messages = {
    "invalid": "不是合法整数"
}

fields.Number.default_error_messages = {
    "invalid": "不是合法数字"
}

fields.Boolean.default_error_messages = {
    "invalid": "不是合法布尔值"
}
db = SQLAlchemy()
ma = Marshmallow()