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package objx
/*
MSI (map[string]interface{} and []map[string]interface{})
*/
// MSI gets the value as a map[string]interface{}, returns the optionalDefault
// value or a system default object if the value is the wrong type.
func (v *Value) MSI(optionalDefault ...map[string]interface{}) map[string]interface{} {
if s, ok := v.data.(map[string]interface{}); ok {
return s
}
if s, ok := v.data.(Map); ok {
return map[string]interface{}(s)
}
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return nil
}
// MustMSI gets the value as a map[string]interface{}.
//
// Panics if the object is not a map[string]interface{}.
func (v *Value) MustMSI() map[string]interface{} {
if s, ok := v.data.(Map); ok {
return map[string]interface{}(s)
}
return v.data.(map[string]interface{})
}
// MSISlice gets the value as a []map[string]interface{}, returns the optionalDefault
// value or nil if the value is not a []map[string]interface{}.
func (v *Value) MSISlice(optionalDefault ...[]map[string]interface{}) []map[string]interface{} {
if s, ok := v.data.([]map[string]interface{}); ok {
return s
}
s := v.ObjxMapSlice()
if s == nil {
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return nil
}
result := make([]map[string]interface{}, len(s))
for i := range s {
result[i] = s[i].Value().MSI()
}
return result
}
// MustMSISlice gets the value as a []map[string]interface{}.
//
// Panics if the object is not a []map[string]interface{}.
func (v *Value) MustMSISlice() []map[string]interface{} {
if s := v.MSISlice(); s != nil {
return s
}
return v.data.([]map[string]interface{})
}
// IsMSI gets whether the object contained is a map[string]interface{} or not.
func (v *Value) IsMSI() bool {
_, ok := v.data.(map[string]interface{})
if !ok {
_, ok = v.data.(Map)
}
return ok
}
// IsMSISlice gets whether the object contained is a []map[string]interface{} or not.
func (v *Value) IsMSISlice() bool {
_, ok := v.data.([]map[string]interface{})
if !ok {
_, ok = v.data.([]Map)
if !ok {
s, ok := v.data.([]interface{})
if ok {
for i := range s {
switch s[i].(type) {
case Map:
case map[string]interface{}:
default:
return false
}
}
return true
}
}
}
return ok
}
// EachMSI calls the specified callback for each object
// in the []map[string]interface{}.
//
// Panics if the object is the wrong type.
func (v *Value) EachMSI(callback func(int, map[string]interface{}) bool) *Value {
for index, val := range v.MustMSISlice() {
carryon := callback(index, val)
if !carryon {
break
}
}
return v
}
// WhereMSI uses the specified decider function to select items
// from the []map[string]interface{}. The object contained in the result will contain
// only the selected items.
func (v *Value) WhereMSI(decider func(int, map[string]interface{}) bool) *Value {
var selected []map[string]interface{}
v.EachMSI(func(index int, val map[string]interface{}) bool {
shouldSelect := decider(index, val)
if !shouldSelect {
selected = append(selected, val)
}
return true
})
return &Value{data: selected}
}
// GroupMSI uses the specified grouper function to group the items
// keyed by the return of the grouper. The object contained in the
// result will contain a map[string][]map[string]interface{}.
func (v *Value) GroupMSI(grouper func(int, map[string]interface{}) string) *Value {
groups := make(map[string][]map[string]interface{})
v.EachMSI(func(index int, val map[string]interface{}) bool {
group := grouper(index, val)
if _, ok := groups[group]; !ok {
groups[group] = make([]map[string]interface{}, 0)
}
groups[group] = append(groups[group], val)
return true
})
return &Value{data: groups}
}
// ReplaceMSI uses the specified function to replace each map[string]interface{}s
// by iterating each item. The data in the returned result will be a
// []map[string]interface{} containing the replaced items.
func (v *Value) ReplaceMSI(replacer func(int, map[string]interface{}) map[string]interface{}) *Value {
arr := v.MustMSISlice()
replaced := make([]map[string]interface{}, len(arr))
v.EachMSI(func(index int, val map[string]interface{}) bool {
replaced[index] = replacer(index, val)
return true
})
return &Value{data: replaced}
}
// CollectMSI uses the specified collector function to collect a value
// for each of the map[string]interface{}s in the slice. The data returned will be a
// []interface{}.
func (v *Value) CollectMSI(collector func(int, map[string]interface{}) interface{}) *Value {
arr := v.MustMSISlice()
collected := make([]interface{}, len(arr))
v.EachMSI(func(index int, val map[string]interface{}) bool {
collected[index] = collector(index, val)
return true
})
return &Value{data: collected}
}
/*
ObjxMap ((Map) and [](Map))
*/
// ObjxMap gets the value as a (Map), returns the optionalDefault
// value or a system default object if the value is the wrong type.
func (v *Value) ObjxMap(optionalDefault ...(Map)) Map {
if s, ok := v.data.((Map)); ok {
return s
}
if s, ok := v.data.(map[string]interface{}); ok {
return s
}
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return New(nil)
}
// MustObjxMap gets the value as a (Map).
//
// Panics if the object is not a (Map).
func (v *Value) MustObjxMap() Map {
if s, ok := v.data.(map[string]interface{}); ok {
return s
}
return v.data.((Map))
}
// ObjxMapSlice gets the value as a [](Map), returns the optionalDefault
// value or nil if the value is not a [](Map).
func (v *Value) ObjxMapSlice(optionalDefault ...[](Map)) [](Map) {
if s, ok := v.data.([]Map); ok {
return s
}
if s, ok := v.data.([]map[string]interface{}); ok {
result := make([]Map, len(s))
for i := range s {
result[i] = s[i]
}
return result
}
s, ok := v.data.([]interface{})
if !ok {
if len(optionalDefault) == 1 {
return optionalDefault[0]
}
return nil
}
result := make([]Map, len(s))
for i := range s {
switch s[i].(type) {
case Map:
result[i] = s[i].(Map)
case map[string]interface{}:
result[i] = New(s[i])
default:
return nil
}
}
return result
}
// MustObjxMapSlice gets the value as a [](Map).
//
// Panics if the object is not a [](Map).
func (v *Value) MustObjxMapSlice() [](Map) {
if s := v.ObjxMapSlice(); s != nil {
return s
}
return v.data.([](Map))
}
// IsObjxMap gets whether the object contained is a (Map) or not.
func (v *Value) IsObjxMap() bool {
_, ok := v.data.((Map))
if !ok {
_, ok = v.data.(map[string]interface{})
}
return ok
}
// IsObjxMapSlice gets whether the object contained is a [](Map) or not.
func (v *Value) IsObjxMapSlice() bool {
_, ok := v.data.([](Map))
if !ok {
_, ok = v.data.([]map[string]interface{})
if !ok {
s, ok := v.data.([]interface{})
if ok {
for i := range s {
switch s[i].(type) {
case Map:
case map[string]interface{}:
default:
return false
}
}
return true
}
}
}
return ok
}
// EachObjxMap calls the specified callback for each object
// in the [](Map).
//
// Panics if the object is the wrong type.
func (v *Value) EachObjxMap(callback func(int, Map) bool) *Value {
for index, val := range v.MustObjxMapSlice() {
carryon := callback(index, val)
if !carryon {
break
}
}
return v
}
// WhereObjxMap uses the specified decider function to select items
// from the [](Map). The object contained in the result will contain
// only the selected items.
func (v *Value) WhereObjxMap(decider func(int, Map) bool) *Value {
var selected [](Map)
v.EachObjxMap(func(index int, val Map) bool {
shouldSelect := decider(index, val)
if !shouldSelect {
selected = append(selected, val)
}
return true
})
return &Value{data: selected}
}
// GroupObjxMap uses the specified grouper function to group the items
// keyed by the return of the grouper. The object contained in the
// result will contain a map[string][](Map).
func (v *Value) GroupObjxMap(grouper func(int, Map) string) *Value {
groups := make(map[string][](Map))
v.EachObjxMap(func(index int, val Map) bool {
group := grouper(index, val)
if _, ok := groups[group]; !ok {
groups[group] = make([](Map), 0)
}
groups[group] = append(groups[group], val)
return true
})
return &Value{data: groups}
}
// ReplaceObjxMap uses the specified function to replace each (Map)s
// by iterating each item. The data in the returned result will be a
// [](Map) containing the replaced items.
func (v *Value) ReplaceObjxMap(replacer func(int, Map) Map) *Value {
arr := v.MustObjxMapSlice()
replaced := make([](Map), len(arr))
v.EachObjxMap(func(index int, val Map) bool {
replaced[index] = replacer(index, val)
return true
})
return &Value{data: replaced}
}
// CollectObjxMap uses the specified collector function to collect a value
// for each of the (Map)s in the slice. The data returned will be a
// []interface{}.
func (v *Value) CollectObjxMap(collector func(int, Map) interface{}) *Value {
arr := v.MustObjxMapSlice()
collected := make([]interface{}, len(arr))
v.EachObjxMap(func(index int, val Map) bool {
collected[index] = collector(index, val)
return true
})
return &Value{data: collected}
}
|
