pascal/lazarus-ccr
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tvplanit: Add property Persistent to BufDSDatastore

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@4924 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
2016-07-06 13:41:17 +00:00
parent 4472db6f34
commit 287ff93ba0
1 changed files with 26 additions and 3 deletions
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29
components/tvplanit/source/vpbufds.pas
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@ -19,7 +19,9 @@ type
FTasksTable: TBufDataset;
FDirectory: String;
FUseAutoInc: Boolean;
FPersistent: Boolean;
procedure SetDirectory(AValue: String);
procedure SetPersistent(AValue: Boolean);
procedure SetUseAutoInc(AValue: Boolean);
protected
@ -51,9 +53,10 @@ type
property TasksTable;
published
property Directory: String read FDirectory write SetDirectory;
property AutoConnect;
property AutoCreate;
property Directory: String read FDirectory write SetDirectory;
property Persistent: Boolean read FPersistent write SetPersistent default true;
property UseAutoIncFields: Boolean read FUseAutoInc write SetUseAutoInc default true;
end;
@ -74,6 +77,7 @@ begin
FEventsTable := TBufDataset.Create(nil);
FContactsTable := TBufDataset.Create(nil);
FTasksTable := TBufDataset.Create(nil);
FPersistent := true;
FUseAutoInc := true;
end;
@ -123,8 +127,9 @@ begin
raise Exception.CreateFmt('TableName "%s" cannot be processed.', [ATableName]);
table.Close;
table.FileName := dir + ATableName + TABLE_EXT;
if not FileExists(table.FileName) then
if FPersistent then
table.FileName := dir + ATableName + TABLE_EXT;
if ((not FPersistent) or (not FileExists(table.FileName))) and (table.FieldDefs.Count = 0) then
begin
CreateFieldDefs(ATableName, table.FieldDefs);
if FUseAutoInc then
@ -217,6 +222,24 @@ begin
FDirectory := AValue;
end;
procedure TVpBufDSDatastore.SetPersistent(AValue: Boolean);
var
wasConn: Boolean;
begin
if AValue <> FPersistent then begin
wasConn := Connected;
Connected := false;
FPersistent := AValue;
if not FPersistent then begin
FResourceTable.FileName := '';
FEventsTable.FileName := '';
FContactsTable.FileName := '';
FTasksTable.FileName := '';
end;
Connected := wasConn;
end;
end;
procedure TVpBufDSDatastore.SetUseAutoInc(AValue: Boolean);
var
dir: String;