297780cb8e
- migration: open question type, rubric, max_length, quiz grader and the grading and review columns of attempt answers - open answers are checked, stored as pending and never scored on answer; a changed text resets the grading state - student JSON gains text, grading_status, grader_feedback, review_comment, max_length, needs_review and open_answers; the rubric is never serialized
34 lines
1.0 KiB
Go
34 lines
1.0 KiB
Go
package classes
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import (
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"strings"
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"unicode/utf8"
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"git.golem15.com/golem15/sm-quizzes-plugin/models"
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)
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// MaxLength is the longest answer an open question accepts, in characters:
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// its MaxLength when set and positive, else models.DefaultMaxLength.
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func MaxLength(q models.Question) int {
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if q.MaxLength != nil && *q.MaxLength > 0 {
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return *q.MaxLength
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}
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return models.DefaultMaxLength
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}
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// CheckOpenText cleans a student's answer to an open question (D-04): it
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// removes every NUL character (Postgres text refuses them) and the
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// surrounding whitespace. A blank text is a FieldError text_required and a
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// text longer than MaxLength(q) characters (runes, not bytes) is a
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// FieldError text_too_long.
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func CheckOpenText(text string, q models.Question) (string, error) {
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text = strings.TrimSpace(strings.ReplaceAll(text, "\x00", ""))
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if text == "" {
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return "", &FieldError{Field: "text", Key: "text_required"}
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}
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if utf8.RuneCountInString(text) > MaxLength(q) {
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return "", &FieldError{Field: "text", Key: "text_too_long"}
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}
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return text, nil
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}
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