/// <summary>
/// Outputs statements for altering of new sequences.
/// </summary>
/// <param name="writer">Writer the output should be written to.</param>
/// <param name="oldSchema">The old schema.</param>
/// <param name="newSchema">The new schema.</param>
/// <param name="searchPathHelper">The search path helper.</param>
public static void AlterCreatedSequences(StreamWriter writer, [NullGuard.AllowNull] PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
// Alter created sequences
foreach (PgSequence sequence in newSchema.Sequences)
{
if ((oldSchema == null || !oldSchema.ContainsSequence(sequence.Name)) && sequence.Owner != null && sequence.Owner != string.Empty)
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.OwnedBySQL);
}
}
}
/// <summary>
/// Outputs statements for creation of new sequences.
/// </summary>
/// <param name="writer">Writer the output should be written to.</param>
/// <param name="oldSchema">Original schema.</param>
/// <param name="newSchema">New schema.</param>
/// <param name="searchPathHelper">Search path helper.</param>
public static void Create(StreamWriter writer, [NullGuard.AllowNull] PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
// Add new sequences
foreach (PgSequence sequence in newSchema.Sequences)
{
if (oldSchema == null || !oldSchema.ContainsSequence(sequence.Name))
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.CreationSQL);
}
}
}
public static void AlterCreatedSequences(TextWriter writer, PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
// Alter created sequences
foreach (var sequence in newSchema.GetSequences())
{
if ((oldSchema == null || !oldSchema.ContainsSequence(sequence.Name)) && !string.IsNullOrEmpty(sequence.OwnedBy))
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.GetOwnedBySql());
}
}
}
public static void CreateSequences(TextWriter writer, PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
// Add new sequences
foreach (var sequence in newSchema.GetSequences())
{
if (oldSchema == null || !oldSchema.ContainsSequence(sequence.Name))
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.GetCreationSql());
}
}
}
/// <summary>
/// Outputs statements for dropping of sequences that do not exist anymore.
/// </summary>
public static void Drop(StreamWriter writer, [NullGuard.AllowNull] PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
if (oldSchema == null)
{
return;
}
// Drop sequences that do not exist in new schema
foreach (PgSequence sequence in oldSchema.Sequences)
{
if (!newSchema.ContainsSequence(sequence.Name))
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.DropSQL);
}
}
}
public static void DropSequences(TextWriter writer, PgSchema oldSchema, PgSchema newSchema, SearchPathHelper searchPathHelper)
{
if (oldSchema == null)
{
return;
}
// Drop sequences that do not exist in new schema
foreach (var sequence in oldSchema.GetSequences())
{
if (!newSchema.ContainsSequence(sequence.Name))
{
searchPathHelper.OutputSearchPath(writer);
writer.WriteLine();
writer.WriteLine(sequence.GetDropSql());
}
}
}
