public override void SetPreviousVersion(DBXml dbXml, Dictionary <string, string> previousVersions)
{
base.SetPreviousVersion(dbXml, previousVersions);
foreach (var objectVersion in previousVersions)
{
if (objectVersion.Key.Length > 0)
{
var row = dbXml.FindRow(r => r.Element("_commReq") != null && r.Element("_commReq").Value == objectVersion.Key);
if (row != null)
{
row.AddElement("version", objectVersion.Value);
}
}
}
}
/// <summary>
/// Generates the changeset - diff beetween two snapshots.
/// </summary>
/// <param name="commSnapshot">The snapshot from other branch.</param>
/// <param name="dbSnapshot">The snapshot created from database.</param>
/// <returns>Generated xml changeset.</returns>
public virtual DBXml GenerateChangeset(DBXml commSnapshot, DBXml dbSnapshot)
{
DBXml result = new DBXml(commSnapshot);
Dictionary <string, string> previousVersion = GetPreviousVersion(result);
RemovePreviousVersion(result);
IEnumerable <DBRow> resultEntries = result.Tables.SelectMany(table => table.Rows);
if (dbSnapshot == null)
{
var eTables = new List <DBTable>();
foreach (var table in result.Tables)
{
if (table.HasRows == false)
{
eTables.Add(table);
}
}
foreach (var table in eTables)
{
table.Remove();
}
return(MarkAsInserted(resultEntries).First().Table.Document);
}
IEnumerable <DBRow> dbEntries = dbSnapshot.Tables.SelectMany(table => table.Rows).Where(row => row.HasAction == false);
List <DBRow> unmodifiedEntries = new List <DBRow>();
foreach (DBRow entry in resultEntries)
{
DBRow match = dbSnapshot.FindRow(entry);
if (match != null)
{
//entry.Action != DBRowState.Delete - niestety musialem dolozyc ten warunek gdyz ciezko jest dogadac sie z chlopakami
// by entry przy delete tez zawieraly wersje
if (entry.Action != DBRowState.Delete && entry.IsTheSameAs(match))
{
if (entry.Action == null)
{
unmodifiedEntries.Add(entry);
}
else if (entry.Action == DBRowState.Insert)
{
entry.SetAction(DBRowState.Update);
}
}
else if (entry.Action == null)
{
entry.Element("version").Name = "_version";
entry.SetAction(DBRowState.Update);
}
match.Remove();
}
else if (entry.Action == null)
{
entry.SetAction(DBRowState.Insert);
}
}
if (previousVersion != null) // && result.Table(MainObjectTag).FirstRow().Element("version") == null
{
SetPreviousVersion(result, previousVersion);
//result.Table(MainObjectTag).FirstRow().AddElement("version", previousVersion);
}
// remove unmodified entries from result
unmodifiedEntries.ForEach(entry => entry.Remove());
foreach (DBRow entry in dbEntries)
{
entry.SetAction(DBRowState.Delete);
}
result.AddTable(from table in dbSnapshot.Tables where table.HasRows select table);
var emptyTables = new List <DBTable>();
foreach (var table in result.Tables)
{
if (table.HasRows == false)
{
emptyTables.Add(table);
}
}
foreach (var table in emptyTables)
{
table.Remove();
}
return(result);
}