internal static void Generate(DBConnection cn, TextWriter writer, string namespaceDeclaration, IDatabase database, IEnumerable <Table> tables, Database configuration)
{
writer.WriteLine(namespaceDeclaration);
foreach (var table in tables)
{
try {
CodeGenerationStatics.AddSummaryDocComment(writer, "Contains logic that retrieves rows from the " + table + " table.");
writer.WrapInTableNamespaceIfNecessary(
table,
() => {
writer.WriteLine($"public static partial class {table.GetTableRetrievalClassDeclaration()} {{");
var isRevisionHistoryTable = DataAccessStatics.IsRevisionHistoryTable(table.Name, configuration);
var columns = new TableColumns(cn, table.ObjectIdentifier, isRevisionHistoryTable);
// Write nested classes.
DataAccessStatics.WriteRowClasses(
writer,
columns.AllColumns,
localWriter => {
if (!isRevisionHistoryTable)
{
return;
}
writer.WriteLine(
"public UserTransaction Transaction { get { return RevisionHistoryStatics.UserTransactionsById[ RevisionHistoryStatics.RevisionsById[ System.Convert.ToInt32( " +
Utility.GetCSharpIdentifier(columns.PrimaryKeyAndRevisionIdColumn.PascalCasedNameExceptForOracle) + " ) ].UserTransactionId ]; } }");
},
localWriter => {
if (!columns.DataColumns.Any())
{
return;
}
var modClass = "Modification." + table.GetStandardModificationClassReference();
var revisionHistorySuffix = StandardModificationStatics.GetRevisionHistorySuffix(isRevisionHistoryTable);
writer.WriteLine("public " + modClass + " ToModification" + revisionHistorySuffix + "() {");
writer.WriteLine(
"return " + modClass + ".CreateForSingleRowUpdate" + revisionHistorySuffix + "( " + StringTools.ConcatenateWithDelimiter(
", ",
columns.AllColumnsExceptRowVersion.Select(i => Utility.GetCSharpIdentifier(i.PascalCasedNameExceptForOracle)).ToArray()) + " );");
writer.WriteLine("}");
});
writeCacheClass(
cn,
writer,
database,
table,
columns,
isRevisionHistoryTable);
var isSmallTable = configuration.SmallTables != null && configuration.SmallTables.Any(i => i.EqualsIgnoreCase(table.ObjectIdentifier));
var tableUsesRowVersionedCaching = configuration.TablesUsingRowVersionedDataCaching != null &&
configuration.TablesUsingRowVersionedDataCaching.Any(i => i.EqualsIgnoreCase(table.ObjectIdentifier));
if (tableUsesRowVersionedCaching && columns.RowVersionColumn == null && !(cn.DatabaseInfo is OracleInfo))
{
throw new ApplicationException(
cn.DatabaseInfo is MySqlInfo
? "Row-versioned data caching cannot currently be used with MySQL databases."
: "Row-versioned data caching can only be used with the {0} table if you add a rowversion column.".FormatWith(table));
}
if (isSmallTable)
{
writeGetAllRowsMethod(writer, isRevisionHistoryTable, false);
}
writeGetRowsMethod(
cn,
writer,
database,
table,
columns,
isSmallTable,
tableUsesRowVersionedCaching,
isRevisionHistoryTable,
false,
configuration.CommandTimeoutSecondsTyped);
if (isRevisionHistoryTable)
{
if (isSmallTable)
{
writeGetAllRowsMethod(writer, true, true);
}
writeGetRowsMethod(
cn,
writer,
database,
table,
columns,
isSmallTable,
tableUsesRowVersionedCaching,
true,
true,
configuration.CommandTimeoutSecondsTyped);
}
writeGetRowMatchingPkMethod(
cn,
writer,
database,
table,
columns,
isSmallTable,
tableUsesRowVersionedCaching,
isRevisionHistoryTable,
configuration.CommandTimeoutSecondsTyped);
if (isRevisionHistoryTable)
{
DataAccessStatics.WriteGetLatestRevisionsConditionMethod(writer, columns.PrimaryKeyAndRevisionIdColumn.Name);
}
if (tableUsesRowVersionedCaching)
{
var keyTupleTypeArguments = getPkAndVersionTupleTypeArguments(cn, columns);
writer.WriteLine($"private static Cache<{TypeNames.Tuple}<{keyTupleTypeArguments}>, BasicRow> getRowsByPkAndVersion() {{");
var first = $"VersionedRowDataCache<{TypeNames.Tuple}<{getPkTupleTypeArguments( columns )}>, {TypeNames.Tuple}<{keyTupleTypeArguments}>, BasicRow>";
var second = table.Name.TableNameToPascal(cn) + "TableRetrievalRowsByPkAndVersion";
var third = StringTools.ConcatenateWithDelimiter(", ", Enumerable.Range(1, columns.KeyColumns.Count()).Select(i => "i.Item{0}".FormatWith(i)));
writer.WriteLine(
$@"return AppMemoryCache.GetCacheValue<{first}>( ""{second}"", () => new {first}( i => {TypeNames.Tuple}.Create( {third} ) ) ).RowsByPkAndVersion;");
writer.WriteLine("}");
}
// Initially we did not generate this method for small tables, but we found a need for it when the cache is disabled since that will cause
// GetRowMatchingId to repeatedly query.
if (columns.KeyColumns.Count() == 1 && columns.KeyColumns.Single().Name.ToLower().EndsWith("id"))
{
writeToIdDictionaryMethod(writer, columns);
}
writer.WriteLine("}"); // class
});
}
catch (Exception e) when(!(e is UserCorrectableException))
{
throw new ApplicationException($"An error occurred while generating TableRetrieval logic for the '{table}' table.", e);
}
}
writer.WriteLine("}"); // namespace
}
internal static void Generate(
DBConnection cn, TextWriter writer, string namespaceDeclaration, Database database, IEnumerable <string> tableNames,
Configuration.SystemDevelopment.Database configuration)
{
writer.WriteLine(namespaceDeclaration);
foreach (var table in tableNames)
{
CodeGenerationStatics.AddSummaryDocComment(writer, "Contains logic that retrieves rows from the " + table + " table.");
writer.WriteLine("public static partial class " + GetClassName(cn, table) + " {");
var isRevisionHistoryTable = DataAccessStatics.IsRevisionHistoryTable(table, configuration);
var columns = new TableColumns(cn, table, isRevisionHistoryTable);
// Write nested classes.
DataAccessStatics.WriteRowClasses(
writer,
columns.AllColumns,
localWriter => {
if (!isRevisionHistoryTable)
{
return;
}
writer.WriteLine(
"public UserTransaction Transaction { get { return RevisionHistoryStatics.UserTransactionsById[ RevisionHistoryStatics.RevisionsById[ System.Convert.ToInt32( " +
EwlStatics.GetCSharpIdentifier(columns.PrimaryKeyAndRevisionIdColumn.PascalCasedNameExceptForOracle) + " ) ].UserTransactionId ]; } }");
},
localWriter => {
if (!columns.DataColumns.Any())
{
return;
}
var modClass = database.SecondaryDatabaseName + "Modification." +
StandardModificationStatics.GetClassName(cn, table, isRevisionHistoryTable, isRevisionHistoryTable);
var revisionHistorySuffix = StandardModificationStatics.GetRevisionHistorySuffix(isRevisionHistoryTable);
writer.WriteLine("public " + modClass + " ToModification" + revisionHistorySuffix + "() {");
writer.WriteLine(
"return " + modClass + ".CreateForSingleRowUpdate" + revisionHistorySuffix + "( " +
StringTools.ConcatenateWithDelimiter(
", ",
columns.AllColumnsExceptRowVersion.Select(i => EwlStatics.GetCSharpIdentifier(i.PascalCasedNameExceptForOracle)).ToArray()) + " );");
writer.WriteLine("}");
});
writeCacheClass(cn, writer, database, table, columns, isRevisionHistoryTable);
var isSmallTable = configuration.SmallTables != null && configuration.SmallTables.Any(i => i.EqualsIgnoreCase(table));
var tableUsesRowVersionedCaching = configuration.TablesUsingRowVersionedDataCaching != null &&
configuration.TablesUsingRowVersionedDataCaching.Any(i => i.EqualsIgnoreCase(table));
if (tableUsesRowVersionedCaching && columns.RowVersionColumn == null && !(cn.DatabaseInfo is OracleInfo))
{
throw new UserCorrectableException(
cn.DatabaseInfo is MySqlInfo
? "Row-versioned data caching cannot currently be used with MySQL databases."
: "Row-versioned data caching can only be used with the {0} table if you add a rowversion column.".FormatWith(table));
}
if (isSmallTable)
{
writeGetAllRowsMethod(writer, isRevisionHistoryTable, false);
}
writeGetRowsMethod(cn, writer, database, table, columns, isSmallTable, tableUsesRowVersionedCaching, isRevisionHistoryTable, false);
if (isRevisionHistoryTable)
{
if (isSmallTable)
{
writeGetAllRowsMethod(writer, true, true);
}
writeGetRowsMethod(cn, writer, database, table, columns, isSmallTable, tableUsesRowVersionedCaching, true, true);
}
writeGetRowMatchingPkMethod(cn, writer, database, table, columns, isSmallTable, tableUsesRowVersionedCaching, isRevisionHistoryTable);
if (isRevisionHistoryTable)
{
DataAccessStatics.WriteGetLatestRevisionsConditionMethod(writer, columns.PrimaryKeyAndRevisionIdColumn.Name);
}
if (tableUsesRowVersionedCaching)
{
var keyTupleTypeArguments = getPkAndVersionTupleTypeArguments(cn, columns);
writer.WriteLine("private static " + "Cache<System.Tuple<" + keyTupleTypeArguments + ">, BasicRow>" + " getRowsByPkAndVersion() {");
writer.WriteLine(
"return AppMemoryCache.GetCacheValue<{0}>( \"{1}\", () => new {0}( i => System.Tuple.Create( {2} ) ) ).RowsByPkAndVersion;".FormatWith(
"VersionedRowDataCache<System.Tuple<{0}>, System.Tuple<{1}>, BasicRow>".FormatWith(getPkTupleTypeArguments(columns), keyTupleTypeArguments),
database.SecondaryDatabaseName + table.TableNameToPascal(cn) + "TableRetrievalRowsByPkAndVersion",
StringTools.ConcatenateWithDelimiter(", ", Enumerable.Range(1, columns.KeyColumns.Count()).Select(i => "i.Item{0}".FormatWith(i)).ToArray())));
writer.WriteLine("}");
}
// Initially we did not generate this method for small tables, but we found a need for it when the cache is disabled since that will cause
// GetRowMatchingId to repeatedly query.
if (columns.KeyColumns.Count() == 1 && columns.KeyColumns.Single().Name.ToLower().EndsWith("id"))
{
writeToIdDictionaryMethod(writer, columns);
}
if (isRevisionHistoryTable)
{
DataAccessStatics.WriteRevisionDeltaExtensionMethods(writer, GetClassName(cn, table), columns.DataColumns);
}
writer.WriteLine("}"); // class
}
writer.WriteLine("}"); // namespace
}