74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package v1_27
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import (
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"fmt"
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"strings"
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"gitea.dev/models/db"
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"gitea.dev/models/migrations/base"
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"xorm.io/xorm/schemas"
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)
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type issueWithLongTextContent struct {
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Content string `xorm:"LONGTEXT"`
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}
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func (issueWithLongTextContent) TableName() string {
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return "issue"
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}
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type commentWithLongTextFields struct {
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Content string `xorm:"LONGTEXT"`
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PatchQuoted string `xorm:"LONGTEXT patch"`
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}
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func (commentWithLongTextFields) TableName() string {
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return "comment"
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}
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func isMSSQLMaxTextColumn(column *schemas.Column) bool {
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if column.Length != -1 {
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return false
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}
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return strings.EqualFold(column.SQLType.Name, schemas.Varchar) || strings.EqualFold(column.SQLType.Name, schemas.NVarchar)
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}
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func modifyLongTextColumnsForMSSQL(x db.EngineMigration, bean any, columnNames ...string) error {
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table, err := x.TableInfo(bean)
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if err != nil {
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return err
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}
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for _, columnName := range columnNames {
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column := table.GetColumn(columnName)
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if column == nil {
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return fmt.Errorf("column %s does not exist in table %s", columnName, table.Name)
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}
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if isMSSQLMaxTextColumn(column) {
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continue
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}
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if err := base.ModifyColumn(x, table.Name, column); err != nil {
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return fmt.Errorf("modify %s.%s: %w", table.Name, columnName, err)
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}
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}
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return nil
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}
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// ExpandIssueAndCommentLongTextFieldsForMSSQL expands legacy MSSQL nvarchar(4000)
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// columns to nvarchar(max) so PR push comments and long issue content are not truncated.
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func ExpandIssueAndCommentLongTextFieldsForMSSQL(x db.EngineMigration) error {
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if x.Dialect().URI().DBType != schemas.MSSQL {
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return nil
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}
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if err := modifyLongTextColumnsForMSSQL(x, new(issueWithLongTextContent), "content"); err != nil {
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return err
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}
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return modifyLongTextColumnsForMSSQL(x, new(commentWithLongTextFields), "content", "patch")
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}
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