photoprism/internal/form/search.go
Michael Mayer 03ec4b586d Initial commit for folders and moments #154 #260 #331
Signed-off-by: Michael Mayer <michael@liquidbytes.net>
2020-05-23 20:58:58 +02:00

106 lines
2.3 KiB
Go

package form
import (
"fmt"
"reflect"
"strconv"
"strings"
"time"
"unicode"
"github.com/photoprism/photoprism/pkg/txt"
"github.com/araddon/dateparse"
)
type SearchForm interface {
GetQuery() string
SetQuery(q string)
}
func ParseQueryString(f SearchForm) (result error) {
var key, value []rune
var escaped, isKeyValue bool
q := f.GetQuery()
f.SetQuery("")
formValues := reflect.ValueOf(f).Elem()
q = strings.TrimSpace(q) + "\n"
var queryStrings []string
for _, char := range q {
if unicode.IsSpace(char) && !escaped {
if isKeyValue {
fieldName := strings.Title(string(key))
field := formValues.FieldByName(fieldName)
stringValue := string(value)
if field.CanSet() {
switch field.Interface().(type) {
case time.Time:
if timeValue, err := dateparse.ParseAny(stringValue); err != nil {
result = err
} else {
field.Set(reflect.ValueOf(timeValue))
}
case float32, float64:
if floatValue, err := strconv.ParseFloat(stringValue, 64); err != nil {
result = err
} else {
field.SetFloat(floatValue)
}
case int, int8, int16, int32, int64:
if intValue, err := strconv.Atoi(stringValue); err != nil {
result = err
} else {
field.SetInt(int64(intValue))
}
case uint, uint8, uint16, uint32, uint64:
if intValue, err := strconv.Atoi(stringValue); err != nil {
result = err
} else {
field.SetUint(uint64(intValue))
}
case string:
field.SetString(stringValue)
case bool:
field.SetBool(txt.Bool(stringValue))
default:
result = fmt.Errorf("unsupported type: %s", fieldName)
}
} else {
result = fmt.Errorf("unknown filter: %s", fieldName)
}
} else if len(strings.TrimSpace(string(key))) > 0 {
queryStrings = append(queryStrings, strings.TrimSpace(string(key)))
}
escaped = false
isKeyValue = false
key = key[:0]
value = value[:0]
} else if char == ':' {
isKeyValue = true
} else if char == '"' {
escaped = !escaped
} else if isKeyValue {
value = append(value, char)
} else {
key = append(key, unicode.ToLower(char))
}
}
if len(queryStrings) > 0 {
f.SetQuery(strings.Join(queryStrings, " "))
}
if result != nil {
log.Errorf("error while parsing search form: %s", result)
}
return result
}