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args.go
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/
args.go
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package zinc
import (
"database/sql"
)
type (
Args []any
NamedArg = sql.NamedArg
NamedArgs map[string]any
)
type ArgsProvider interface {
ProvideArgs(opts *Options) ([]any, error)
}
func Named(name string, value any) NamedArg {
return NamedArg{Name: name, Value: value}
}
type structArgs struct {
v any
}
var _ ArgsProvider = structArgs{}
func StructArgs(p any) ArgsProvider {
return structArgs{p}
}
func (sargs structArgs) ProvideArgs(opts *Options) ([]any, error) {
namedArgs, err := StructToNamed(sargs.v, opts.NameResolver)
if err != nil {
return nil, err
}
return []any{namedArgs}, nil
}
func StructToNamed(v any, resolver NameResolver) (NamedArgs, error) {
v1 := valueOf(v)
s, ok := ParseStruct(v1.Type())
if !ok {
return nil, ErrInvalidArg
}
if resolver == nil {
resolver = DefaultNameResolver
}
namedArgs := NamedArgs{}
for _, f := range s.Fields {
k := f.getDBFieldName(resolver, s.Name)
if k != "" {
v := f.getValue(v1)
if !v.IsValid() {
return nil, ErrInvalidArg
}
namedArgs[k] = v.Interface()
}
}
return namedArgs, nil
}