Required

Required

• The field under validation must be present in the input data and not empty. A field is considered "empty" if one of the following conditions are true:
  • The value is null.
  • The value is an empty string.

---

data = {
  "name_1": "Majid",
  "name_2": "",
  "name_3": None,
}

rules = {
  "name_1": ["required"],
  "name_2": ["required"],
   "name_3": ["required"],
}

validate = PyValidations.make(data, rules)

and result is:

{
  'failed': True,
   "errors": {
       'name_2': ['The name_2 field is required.'],
       'name_3': ['The name_3 field is required.']
   }
}

---

Required If

• required_if:anotherfield
  • The field under validation must be present and not empty if the anotherfield field is exist and equal to any value.

data = {
   "first_name": "Majid",
    "last_name": "Ahmaditabar",  #--> if first_name exist and has value last_name field is required and will validate
}
rules = {
    "first_name": ["nullable", "alpha"],
    "last_name": ["required_if:first_name", "alpha"],
}

validate = PyValidations.make(data, rules)

Required Unless

• required_unless:anotherfield
  • The field under validation must be present and not empty unless the anotherfield is Not Exist or be null or empty or "" value.

data = {
  "email": "",
  "phone": "123345665",  #--> if email not exist or has null or "" value the phone field is required
}

rules = {
   "email": ["nullable", "email"],
   "phone": ["required_unless:email", "numeric"],
}

validate = PyValidations.make(data, rules)

Required with

• required_with:foo,bar,...
  • The field under validation must be present and not empty only if all of the other specified fields are present and not empty.

data = {
   "first_name": "",
   "last_name": "Ahmaditabar",  #-->required if first_name is exist and not empty
   "age": "33",   #-->required if first_name,last_name are exist and not empty
}

rules = {
    "first_name": ["nullable", "alpha"],
     "last_name": ["required_if:first_name", "alpha"],
     "age": ["required_with:first_name,last_name", "numeric"],
}

validate = PyValidations.make(data, rules)

Required Without

• required_without:foo,bar,...
  • The field under validation must be present and not empty only when all of the other specified fields are empty or not present.

data = {
  "email": "",
  "phone": "",
  "user_name": "John",  #--> if email and phone not exist or have null or "" value the user_name field is required
}

rules = {
  "email": ["nullable", "email"],
  "phone": ["nullable", "numeric"],
  "user_name": ["required_without:email,phone", "string"],
}

validate = PyValidations.make(data, rules)