popcorn :: FloatField :: defaultinit
# Check if a field is a Float
#
# ~~~
# var validator = new ObjectValidator
# validator.add new FloatField("field", required=false)
# assert validator.validate("""{}""")
#
# validator = new ObjectValidator
# validator.add new FloatField("field")
# assert not validator.validate("""{}""")
# assert not validator.validate("""{ "field": "foo" }""")
# assert validator.validate("""{ "field": 10.5 }""")
#
# validator = new ObjectValidator
# validator.add new FloatField("field", min=3.0)
# assert validator.validate("""{ "field": 3.0 }""")
# assert not validator.validate("""{ "field": 2.0 }""")
#
# validator = new ObjectValidator
# validator.add new FloatField("field", max=3.0)
# assert validator.validate("""{ "field": 3.0 }""")
# assert not validator.validate("""{ "field": 4.0 }""")
#
# validator = new ObjectValidator
# validator.add new FloatField("field", min=3.0, max=5.0)
# assert not validator.validate("""{ "field": 2.0 }""")
# assert validator.validate("""{ "field": 3.0 }""")
# assert validator.validate("""{ "field": 5.0 }""")
# assert not validator.validate("""{ "field": 6.0 }""")
# ~~~
class FloatField
super RequiredField
# Min value (default: not checked)
var min: nullable Float
# Max value (default: not checked)
var max: nullable Float
redef fun validate_field(v, obj) do
if not super then return false
var val = obj.get_or_null(field)
if val == null then
if required == null or required == true then
v.validation.add_error(field, "Expected Float got `null`")
return false
else
return true
end
end
if not val isa Float then
v.validation.add_error(field, "Expected Float got `{val.class_name}`")
return false
end
var min = self.min
if min != null and val < min then
v.validation.add_error(field, "Must be smaller or equal to `{min}`")
return false
end
var max = self.max
if max != null and val > max then
v.validation.add_error(field, "Must be greater or equal to `{max}`")
return false
end
return true
end
end
lib/popcorn/pop_validation.nit:452,1--518,3