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Migration Exception handling

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This commit is contained in:
Michael Bucari-Tovo 2022-06-12 16:35:48 -06:00
parent fa195483d6
commit b7b49a60cf
1 changed files with 58 additions and 45 deletions
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103
Source/AppScaffolding/LibationScaffolding.cs
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@ -405,58 +405,71 @@ namespace AppScaffolding
public static void migrate_from_7_10_1(Configuration config)
{
//https://github.com/rmcrackan/Libation/issues/270#issuecomment-1152863629
//This migration helps fix databases contaminated with the 7.10.1 hack workaround
//and those with improperly identified or missing series. This does not solve cases
//where individual episodes are in the db with a valid series link, but said series'
//parents have not been imported into the database. For those cases, Libation will
//attempt fixup by retrieving parents from the catalog endpoint
var lastNigrationThres = config.GetNonString<bool>($"{nameof(migrate_from_7_10_1)}_ThrewError");
using var context = DbContexts.GetContext();
if (lastNigrationThres) return;
//This migration removes books and series with SERIES_ prefix that were created
//as a hack workaround in 7.10.1. Said workaround was removed in 7.10.2
string removeHackSeries = "delete " +
"from series " +
"where AudibleSeriesId like 'SERIES%'";
try
{
string removeHackBooks = "delete " +
"from books " +
"where AudibleProductId like 'SERIES%'";
//https://github.com/rmcrackan/Libation/issues/270#issuecomment-1152863629
//This migration helps fix databases contaminated with the 7.10.1 hack workaround
//and those with improperly identified or missing series. This does not solve cases
//where individual episodes are in the db with a valid series link, but said series'
//parents have not been imported into the database. For those cases, Libation will
//attempt fixup by retrieving parents from the catalog endpoint
//Detect series parents that were added to the database as books with ContentType.Episode,
//and change them to ContentType.Parent
string updateContentType =
"UPDATE books " +
"SET contenttype = 4 " +
"WHERE audibleproductid IN (SELECT books.audibleproductid " +
"FROM books " +
"INNER JOIN series " +
"ON ( books.audibleproductid = " +
"series.audibleseriesid) " +
"WHERE books.contenttype = 2)";
using var context = DbContexts.GetContext();
//Then detect series parents that were added to the database as books with ContentType.Parent
//but are missing a series link, and add the link (don't know how this happened)
string addMissingSeriesLink =
"INSERT INTO seriesbook " +
"SELECT series.seriesid, " +
"books.bookid, " +
"'- 1' " +
"FROM books " +
"LEFT OUTER JOIN seriesbook " +
"ON books.bookid = seriesbook.bookid " +
"INNER JOIN series " +
"ON books.audibleproductid = series.audibleseriesid " +
"WHERE books.contenttype = 4 " +
"AND seriesbook.seriesid IS NULL";
//This migration removes books and series with SERIES_ prefix that were created
//as a hack workaround in 7.10.1. Said workaround was removed in 7.10.2
string removeHackSeries = "delete " +
"from series " +
"where AudibleSeriesId like 'SERIES%'";
context.Database.ExecuteSqlRaw(removeHackSeries);
context.Database.ExecuteSqlRaw(removeHackBooks);
context.Database.ExecuteSqlRaw(updateContentType);
context.Database.ExecuteSqlRaw(addMissingSeriesLink);
string removeHackBooks = "delete " +
"from books " +
"where AudibleProductId like 'SERIES%'";
LibraryCommands.SaveContext(context);
//Detect series parents that were added to the database as books with ContentType.Episode,
//and change them to ContentType.Parent
string updateContentType =
"UPDATE books " +
"SET contenttype = 4 " +
"WHERE audibleproductid IN (SELECT books.audibleproductid " +
"FROM books " +
"INNER JOIN series " +
"ON ( books.audibleproductid = " +
"series.audibleseriesid) " +
"WHERE books.contenttype = 2)";
//Then detect series parents that were added to the database as books with ContentType.Parent
//but are missing a series link, and add the link (don't know how this happened)
string addMissingSeriesLink =
"INSERT INTO seriesbook " +
"SELECT series.seriesid, " +
"books.bookid, " +
"'- 1' " +
"FROM books " +
"LEFT OUTER JOIN seriesbook " +
"ON books.bookid = seriesbook.bookid " +
"INNER JOIN series " +
"ON books.audibleproductid = series.audibleseriesid " +
"WHERE books.contenttype = 4 " +
"AND seriesbook.seriesid IS NULL";
context.Database.ExecuteSqlRaw(removeHackSeries);
context.Database.ExecuteSqlRaw(removeHackBooks);
context.Database.ExecuteSqlRaw(updateContentType);
context.Database.ExecuteSqlRaw(addMissingSeriesLink);
LibraryCommands.SaveContext(context);
}
catch (Exception ex)
{
Serilog.Log.Logger.Error(ex, "An error occured while running database migrations in {0}", nameof(migrate_from_7_10_1));
config.SetObject($"{nameof(migrate_from_7_10_1)}_ThrewError", true);
}
}
}
}