README
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schema
对 github.com/gorilla/schema 包的扩展, schema 用来将url.Values结构映射到 structs 上.
对于默认的 NewDecoder/NewEncoder, 你必须指定tag "schema".
type Person struct {
Name string `schema:"name,required"` // custom name, must be supplied
Phone string `schema:"phone"` // custom name
Admin bool `schema:"-"` // this field is never set
}
对于扩展的 NewDecoderCustom, 你需要手动指定tag.
一个示例 NewDecoderCustom("json")
type Person struct {
Name string `json:"name"` // custom name
Phone string `json:"phone"` // custom name
Admin bool `json:"-"` // this field is never set
}
Documentation
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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type ConversionError ¶
type ConversionError struct {
Key string // key from the source map.
Type reflect.Type // expected type of elem
Index int // index for multi-value fields; -1 for single-value fields.
Err error // low-level error (when it exists)
}
ConversionError stores information about a failed conversion.
func (ConversionError) Error ¶
func (e ConversionError) Error() string
type Decoder ¶
type Decoder struct {
// contains filtered or unexported fields
}
Decoder decodes values from a map[string][]string to a struct.
func (*Decoder) Decode ¶
Decode decodes a map[string][]string to a struct.
The first parameter must be a pointer to a struct.
The second parameter is a map, typically url.Values from an HTTP request. Keys are "paths" in dotted notation to the struct fields and nested structs.
See the package documentation for a full explanation of the mechanics.
func (*Decoder) IgnoreUnknownKeys ¶
IgnoreUnknownKeys controls the behaviour when the decoder encounters unknown keys in the map. If i is true and an unknown field is encountered, it is ignored. This is similar to how unknown keys are handled by encoding/json. If i is false then Decode will return an error. Note that any valid keys will still be decoded in to the target struct.
To preserve backwards compatibility, the default value is false.
func (*Decoder) RegisterConverter ¶
RegisterConverter registers a converter function for a custom type.
func (*Decoder) SetAliasTag ¶
SetAliasTag changes the tag used to locate custom field aliases. The default tag is "schema".
func (*Decoder) ZeroEmpty ¶
ZeroEmpty controls the behaviour when the decoder encounters empty values in a map. If z is true and a key in the map has the empty string as a value then the corresponding struct field is set to the zero value. If z is false then empty strings are ignored.
The default value is false, that is empty values do not change the value of the struct field.
type EmptyFieldError ¶
type EmptyFieldError struct {
Key string // required key in the source map.
}
EmptyFieldError stores information about an empty required field.
func (EmptyFieldError) Error ¶
func (e EmptyFieldError) Error() string
type Encoder ¶
type Encoder struct {
// contains filtered or unexported fields
}
Encoder encodes values from a struct into url.Values.
func (*Encoder) Encode ¶
Encode encodes a struct into map[string][]string.
Intended for use with url.Values.
func (*Encoder) RegisterEncoder ¶
RegisterEncoder registers a converter for encoding a custom type.
func (*Encoder) SetAliasTag ¶
SetAliasTag changes the tag used to locate custom field aliases. The default tag is "schema".
type MultiError ¶
MultiError stores multiple decoding errors.
Borrowed from the App Engine SDK.
func (MultiError) Error ¶
func (e MultiError) Error() string
type UnknownKeyError ¶
type UnknownKeyError struct {
Key string // key from the source map.
}
UnknownKeyError stores information about an unknown key in the source map.
func (UnknownKeyError) Error ¶
func (e UnknownKeyError) Error() string
Source Files