107 lines
2.3 KiB
Go
107 lines
2.3 KiB
Go
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package form
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import (
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"time"
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"unicode"
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log "github.com/sirupsen/logrus"
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"github.com/araddon/dateparse"
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)
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type SearchForm interface {
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GetQuery() string
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SetQuery(q string)
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}
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func ParseQueryString(f SearchForm) (result error) {
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var key, value []rune
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var escaped, isKeyValue bool
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q := f.GetQuery()
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f.SetQuery("")
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formValues := reflect.ValueOf(f).Elem()
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q = strings.TrimSpace(q) + "\n"
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for _, char := range q {
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if unicode.IsSpace(char) && !escaped {
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if isKeyValue {
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fieldName := strings.Title(string(key))
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field := formValues.FieldByName(fieldName)
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stringValue := string(value)
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if field.CanSet() {
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switch field.Interface().(type) {
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case time.Time:
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if timeValue, err := dateparse.ParseAny(stringValue); err != nil {
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result = err
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} else {
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field.Set(reflect.ValueOf(timeValue))
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}
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case float64:
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if floatValue, err := strconv.ParseFloat(stringValue, 64); err != nil {
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result = err
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} else {
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field.SetFloat(floatValue)
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}
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case int, int64:
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if intValue, err := strconv.Atoi(stringValue); err != nil {
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result = err
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} else {
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field.SetInt(int64(intValue))
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}
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case uint, uint64:
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if intValue, err := strconv.Atoi(stringValue); err != nil {
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result = err
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} else {
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field.SetUint(uint64(intValue))
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}
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case string:
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field.SetString(stringValue)
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case bool:
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if stringValue == "1" || stringValue == "true" || stringValue == "yes" {
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field.SetBool(true)
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} else if stringValue == "0" || stringValue == "false" || stringValue == "no" {
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field.SetBool(false)
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} else {
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result = fmt.Errorf("not a bool value: %s", fieldName)
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}
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default:
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result = fmt.Errorf("unsupported type: %s", fieldName)
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}
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} else {
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result = fmt.Errorf("unknown filter: %s", fieldName)
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}
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} else {
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f.SetQuery(string(key))
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}
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escaped = false
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isKeyValue = false
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key = key[:0]
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value = value[:0]
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} else if char == ':' {
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isKeyValue = true
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} else if char == '"' {
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escaped = !escaped
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} else if isKeyValue {
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value = append(value, unicode.ToLower(char))
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} else {
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key = append(key, unicode.ToLower(char))
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}
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}
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if result != nil {
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log.Errorf("error while parsing search form: %s", result)
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}
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return result
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}
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