public static void Create(Db db, DbAudit a, DbAuditArgs arg)
{
TableAuditTypes auditType = db.GetTableAuditType(arg.Table.TableName);
if(auditType == TableAuditTypes.Default)
auditType = Db.DefaultTableAuditType;
switch (auditType)
{
case TableAuditTypes.SharedTable:
CreateAuditInShareTable(db, a, arg);
break;
case TableAuditTypes.StandaloneTable:
CreateAuditStandaloneTable(db, a, arg);
break;
}
}
static void CreateAuditInShareTable(Db db, DbAudit a, DbAuditArgs arg)
{
Dictionary<string, object> dic = (Dictionary<string, object>)arg.Data;
DbTable table = db.GetDbTable(typeof(DbAuditDetail));
//assume newvalue and oldvalue are same size
int maxValueSize = table.Fields["NEWVALUE"].Length;
DataRow oldRow = null;
if (arg.Action == ExecTypes.Update)
{
oldRow = db.SelectRow(arg.Table, dic);
}
INextIdProvider nextId = db.NextIdProvider;
foreach (KeyValuePair<string, object> kvp in dic)
{
DbAuditDetail ad = new DbAuditDetail(a.Id);
ad.Id = nextId.Get();
ad.FieldName = kvp.Key;
string newValue = GetValue(db, arg.Table, kvp.Key, kvp.Value, maxValueSize);
switch (arg.Action)
{
case ExecTypes.Insert:
ad.NewValue = newValue;
ad.Changed = false;
break;
case ExecTypes.Update:
ad.NewValue = newValue;
if (oldRow != null)
{
string oldValue = GetValue(db, arg.Table, kvp.Key, oldRow[kvp.Key], maxValueSize);
ad.OldValue = oldValue;
ad.Changed = !DbHelper.IsEqual(kvp.Value, oldRow[kvp.Key]);
}
break;
case ExecTypes.Delete:
ad.OldValue = newValue;
ad.Changed = false;
break;
}
db.Insert<DbAuditDetail>(ad);
}
}
public static DbAudit Create(Db db, DbAuditArgs arg)
{
if (!db.IsAuditEnabled(arg.Table.TableName))
return null;
DbAudit a = new DbAudit();
INextIdProvider nextId = db.NextIdProvider;
if (nextId != null)
{
a.Id = nextId.Get();
}
a.Action = arg.Action.ToString();
a.TableName = arg.Table.TableName;
IUserInfoProvider userInfo = db.UserInfoProvider;
if (userInfo != null)
{
a.UserName = userInfo.UserName;
a.HostName = userInfo.HostName;
a.IPAddress = userInfo.IPAddress;
a.OSUser = userInfo.OSUser;
}
IFunctionInfoProvider funcInfo = db.FunctionInfoProvider;
if (funcInfo != null)
{
a.FunctionId = funcInfo.Id;
}
if (arg.Data != null && !(arg.Data is Dictionary<string, object>))
{
a.Remarks = arg.Data.ToString();
}
else if(arg.Action == ExecTypes.Delete)
{
a.Remarks = arg.Sql;
}
db.Insert<DbAudit>(a);
//details
if (arg.Data is Dictionary<string, object>)
{
DbAuditDetail.Create(db, a, arg);
}
return a;
}
static void CreateAuditStandaloneTable(Db db, DbAudit a, DbAuditArgs arg)
{
switch (arg.Action)
{
case ExecTypes.Insert:
case ExecTypes.Update:
case ExecTypes.Delete:
string historyTableName = String.Format("{0}_Audit", arg.Table.TableName);
DbTable historyTable = db.GetDbTable(historyTableName);
historyTable.DefaultAuditType = TableAuditTypes.None;
Dictionary<string, object> dic = (Dictionary<string, object>)arg.Data;
dic.Add(DbFieldNames.AuditId, a.Id);
db.Insert(historyTable, dic);
break;
}
}
protected void DoAudit(DbAuditArgs arg)
{
DbAudit.Create(this, arg);
}