Add the content field to FileInfo (#15749)

* Add the content field to FileInfo

* Fixing the upgrade code

* Trying to fix the text-scheme

* Fixing test-schema

* Fixing test-schema

* Moving the migration to the next version

store/sqlstore/file_info_store.go

@@ -38,6 +38,7 @@ func newSqlFileInfoStore(sqlStore SqlStore, metrics einterfaces.MetricsInterface
 		table.ColMap("ThumbnailPath").SetMaxSize(512)
 		table.ColMap("PreviewPath").SetMaxSize(512)
 		table.ColMap("Name").SetMaxSize(256)
+		table.ColMap("Content").SetMaxSize(0)
 		table.ColMap("Extension").SetMaxSize(64)
 		table.ColMap("MimeType").SetMaxSize(256)
 	}
@@ -272,6 +273,33 @@ func (fs SqlFileInfoStore) AttachToPost(fileId, postId, creatorId string) error
 	return nil
 }
 
+func (fs SqlFileInfoStore) SetContent(fileId, content string) error {
+	query := fs.getQueryBuilder().
+		Update("FileInfo").
+		Set("Content", content).
+		Where(sq.Eq{"Id": fileId})
+
+	queryString, args, err := query.ToSql()
+	if err != nil {
+		return errors.Wrap(err, "file_info_tosql")
+	}
+
+	sqlResult, err := fs.GetMaster().Exec(queryString, args...)
+	if err != nil {
+		return errors.Wrapf(err, "failed to update FileInfo content with id=%s", fileId)
+	}
+
+	count, err := sqlResult.RowsAffected()
+	if err != nil {
+		// RowsAffected should never fail with the MySQL or Postgres drivers
+		return errors.Wrap(err, "unable to retrieve rows affected")
+	} else if count == 0 {
+		// Could not attach the file to the post
+		return store.NewErrInvalidInput("FileInfo", "<id>", fmt.Sprintf("<%s>", fileId))
+	}
+	return nil
+}
+
 func (fs SqlFileInfoStore) DeleteForPost(postId string) (string, error) {
 	if _, err := fs.GetMaster().Exec(
 		`UPDATE

store/sqlstore/upgrade.go

@@ -192,6 +192,7 @@ func upgradeDatabase(sqlStore SqlStore, currentModelVersionString string) error
 	upgradeDatabaseToVersion528(sqlStore)
 	upgradeDatabaseToVersion5281(sqlStore)
 	upgradeDatabaseToVersion529(sqlStore)
+	upgradeDatabaseToVersion530(sqlStore)
 
 	return nil
 }
@@ -865,6 +866,15 @@ func upgradeDatabaseToVersion5281(sqlStore SqlStore) {
 	}
 }
 
+func upgradeDatabaseToVersion530(sqlStore SqlStore) {
+	// if shouldPerformUpgrade(sqlStore, VERSION_5_29_0, VERSION_5_30_0) {
+
+	sqlStore.CreateColumnIfNotExistsNoDefault("FileInfo", "Content", "longtext", "text")
+
+	// saveSchemaVersion(sqlStore, VERSION_5_30_0)
+	// }
+}
+
 func precheckMigrationToVersion528(sqlStore SqlStore) error {
 	teamsQuery, _, err := sqlStore.getQueryBuilder().Select(`COALESCE(SUM(CASE
 				WHEN CHAR_LENGTH(SchemeId) > 26 THEN 1