35 lines
882 B
Go
35 lines
882 B
Go
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package advsql
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import (
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"reflect"
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"errors"
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)
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var ErrNoStructure = errors.New("value is not of type structure")
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// analyze returns the structure of value
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func objectStructure(value interface{}) (*structure, error) {
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t := reflect.TypeOf(value)
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k := t.Kind()
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// only structs are allowed to be stored in DB
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// if pointer: dereference and check again via recursion
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if k == reflect.Ptr {
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v := reflect.ValueOf(value)
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return objectStructure(reflect.Indirect(v).Interface())
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} else if k != reflect.Struct {
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return nil, ErrNoStructure
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}
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fieldAmount := t.NumField()
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structure := new(structure)
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structure.TypeName = t.Name()
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structure.Fields = make([]field, fieldAmount)
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for fieldIndex := 0; fieldIndex < fieldAmount; fieldIndex++ {
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reflectField := t.Field(fieldIndex)
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structure.Fields[fieldIndex] = makeFieldUsingReflect(reflectField)
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}
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return structure, nil
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}
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