func GetEmbedEditable(ctx context.Context, node *node.Node, embed *system.Reference) (editable.Editable, error) {
if node == nil || node.Null || node.Missing {
return nil, nil
}
if *node.Type.Id == *embed {
return GetEditable(ctx, node), nil
}
jcache := jsonctx.FromContext(ctx)
nf, df, ok := jcache.GetNewFunc(embed.Package, embed.Name)
if !ok {
return nil, kerr.New("DGWDERFPVV", "Can't find %s in jsonctx", embed.String())
}
t := reflect.TypeOf(nf())
if df != nil {
t = t.Elem()
}
v := node.Val
for v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface {
v = v.Elem()
}
var field reflect.Value
for i := 0; i < v.Type().NumField(); i++ {
f := v.Type().Field(i)
if f.Anonymous && f.Type == t {
field = v.Field(i)
break
}
}
if field == (reflect.Value{}) {
return nil, kerr.New("UDBOWYUBER", "Can't find %s field in struct", t)
}
// This is the recommended method of presenting an custom editor.
if ed, ok := field.Interface().(editable.Editable); ok {
return ed, nil
}
editors := clientctx.FromContext(ctx)
// Don't do this. Implement the Editable interface instead. We can't do this
// for system types so we use this method instead.
if e, ok := editors.Get(embed.String()); ok {
return e, nil
}
return nil, nil
}
func NewStructFragmentView(ctx context.Context, node *node.Node, origin *system.Reference) *StructFragmentView {
v := &StructFragmentView{}
v.View = New(ctx, v)
v.model = v.App.Editors.Get(node)
v.origin = origin
if ti, ok := sysctx.FromContext(ctx).GetType(origin.Package, origin.Name); ok {
v.originType = ti.(*system.Type)
} else {
v.App.Fail <- kerr.New("DNMXCJXNVU", "Type %s not found in system context", origin.String())
return nil
}
return v
}
func extractType(ctx context.Context, in system.Packed, rule *system.RuleWrapper) (*system.Type, error) {
parentInterface := rule != nil && rule.Parent != nil && rule.Parent.Interface
ruleInterface := rule != nil && rule.Struct != nil && rule.Struct.Interface
if parentInterface && ruleInterface {
return nil, kerr.New("TDXTPGVFAK", "Can't have interface type and interface rule at the same time")
}
if rule != nil && rule.Parent != nil && !parentInterface && !ruleInterface {
// If we have a rule with the parent, and it's not an interface, then
// we just return the parent type of the rule.
return rule.Parent, nil
}
// if the rule is nil (e.g. unpacking into an unknown type) or the type is
// an interface, we ensure the input is a map
if rule == nil || parentInterface {
if in == nil {
return nil, nil
}
switch in.Type() {
case system.J_NULL:
// item is nil, so we don't know the concrete type yet.
return nil, nil
case system.J_MAP:
break
default:
return nil, kerr.New("DLSQRFLINL", "Input %s should be J_MAP if rule is nil or an interface type", in.Type())
}
}
// if the rule is an interface rule, we ensure the input is a map or a native value
if ruleInterface {
if in == nil {
return nil, nil
}
switch in.Type() {
case system.J_NULL:
// item is nil, so we don't know the concrete type yet.
return nil, nil
case system.J_MAP:
break
case system.J_STRING, system.J_NUMBER, system.J_BOOL:
// if the input value is a native value, we will be unpacking into
// the parent type of the rule
return rule.Parent, nil
default:
return nil, kerr.New("SNYLGBJYTM", "Input %s should be J_MAP, J_STRING, J_NUMBER or J_BOOL if rule is interface rule", in.Type())
}
}
ob := in.Map()
typeField, ok := ob["type"]
if !ok {
return nil, kerr.New("HBJVDKAKBJ", "Input must have type field if rule is nil or an interface type")
}
var r system.Reference
if err := r.Unpack(ctx, typeField, false); err != nil {
return nil, kerr.Wrap("YXHGIBXCOC", err)
}
t, ok := r.GetType(ctx)
if !ok {
return nil, kerr.New("IJFMJJWVCA", "Could not find type %s", r.Value())
}
return t, nil
}