46 lines
859 B
Go
46 lines
859 B
Go
package models
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import (
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"fmt"
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"log"
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"regexp"
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"strings"
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)
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func (filter *Filter) FormatSQL() (string, error) {
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if filter == nil {
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return "", nil
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}
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result := ""
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if filter.OrderBy != nil {
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order_by := filter.OrderBy
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match, err := regexp.MatchString("^(\\w+(,\\s*))*\\w+$", strings.TrimSpace(*filter.OrderBy))
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if err != nil {
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return "", err
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}
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if match {
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direction := "ASC"
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if filter.OrderDirection != nil && filter.OrderDirection.IsValid() {
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direction = filter.OrderDirection.String()
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}
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result += fmt.Sprintf(" ORDER BY %s %s", *order_by, direction)
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}
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}
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if filter.Limit != nil {
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offset := 0
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if filter.Offset != nil && *filter.Offset >= 0 {
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offset = *filter.Offset
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}
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result += fmt.Sprintf(" LIMIT %d OFFSET %d", *filter.Limit, offset)
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}
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log.Printf("SQL Filter: '%s'\n", result)
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return result, nil
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}
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