Все остальные модули DBTreeView используют модуль соединения. В данном модуле 3 класса
1) класс параметров соединения, – TDBConnectionParams
Он нужен для показа параметров соединения в инспекторе объектов
2)Класс таблицы TDBTable и её полей
3) Класс непосредственно соединения TDBConnectionBPL
Выглядит он следующим образом.
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unit uDBConnectionBPL; //Здесь 3 класса, //1) класс параметров соединения, - TDBConnectionParams //Он нужен для показа параметров соединения в инспекторе //2)Класс таблицы TDBTable //3) класс непосредственно соединения TDBConnectionBPL //Функциональность класса параметров TDBConnectionParams соединения вызывается как поле //в классе самого соединения TDBConnectionBPL interface uses System.SysUtils, System.Classes,vcl.dialogs, FireDAC.Stan.Intf, FireDAC.Stan.Option, FireDAC.Stan.Error, FireDAC.UI.Intf, FireDAC.Phys.Intf, FireDAC.Stan.Def, FireDAC.Stan.Pool, FireDAC.Stan.Async, FireDAC.Phys, FireDAC.Phys.MySQLDef, FireDAC.VCLUI.Wait, FireDAC.Comp.UI, FireDAC.Phys.MySQL, Data.DB, FireDAC.Comp.Client; //------------------------Класс параметров соединения TDBConnectionParams-------------------------- type TDBConnectionParams=class(TComponent) private FMySQLDriverDir32:string; FDataBase:string; FUser_Name:string; FPassword:string; FServer:string; FPort:string; FCharacterSet:string; //Геттеры function GetMySQLDriverDir32:string; function GetDataBase:string; function GetUser_Name:string; function GetPassword:string; function GetServer:string; function GetPort:string; function GetCharacterSet:string; //Сеттеры procedure SetMySQLDriverDir32(Value:string); procedure SetDataBase(Value:string); procedure SetUser_Name(Value:string); procedure SetPassword(Value:string); procedure SetServer(Value:string); procedure SetPort(Value:string); procedure SetCharacterSet(Value:string); public Procedure Assign(Source:TPersistent); Constructor Create(AOwner:TComponent); override; published //Свойства property MySQLDriverDir32:string read GetMySQLDriverDir32 write SetMySQLDriverDir32; property DataBase:string read GetDataBase write SetDataBase; property User_Name:string read GetUser_Name write SetUser_Name; property Password:string read GetPassword write SetPassword; property Server:string read GetServer write SetServer; property Port:string read GetPort write SetPort; property CharacterSet:string read GetCharacterSet write SetCharacterSet; end; //---------------------------Класс таблицы для DBTreeView и 3 важных полей для DBTreeView type TDBTable=class(TComponent) private Fid:string; FidParent:string; Fname:string; FIndex:string; FIsChecked:string; FIsExpanded:string; //<< FLevel:string; //<< FIsFolder:string; FTableName:string; //Геттеры function GetTable:string; function GetId:string; function GetIdParent:string; function GetName:string; function GetIsFolder:string; function GetIsChecked:string; function GetIndex:string; function GetExpanded:string; function GetLevel:string; //Сеттеры procedure SetTable(Value:string); procedure SetId(Value:string); procedure SetIdParent(Value:string); procedure SetName(Value:string); procedure SetIsFolder(Value:string); procedure SetIsChecked(Value:string); procedure SetIndex(Value:string); procedure SetExpanded(Value:string); procedure SetLevel(Value:string); public constructor Create(AOwner:TComponent); override; procedure Assign(Source:TPersistent); published property TableName:string read GetTable write SetTable; property id:string read GetId write SetId; property idParent:string read GetIdParent write SetIdParent; property NodeName:string read GetName write SetName; property IsFolder:string read GetIsFolder write SetIsFolder; Property IsChecked:string read GetIsChecked write SetIsChecked; Property IndexField:string read GetIndex write SetIndex; Property IsExpanded:string read GetExpanded write SetExpanded; Property Level:string read GetLevel write SetLevel; end; //-----------------------Класс соединения TDBConnectionBPL----------------------------------- type TDBConnectionBPL = class(TDataModule) FDConnection: TFDConnection; FDPhysMySQLDriverLink: TFDPhysMySQLDriverLink; FDGUIxWaitCursor: TFDGUIxWaitCursor; procedure DataModuleCreate(Sender: TObject); private FDBConnectionParams:TDBConnectionParams; FDBTable:TDBTable; public property DBConnectionParams:TDBConnectionParams read FDBConnectionParams write FDBConnectionParams; property DBTable:TDBTable read FDBTable write FDBTable; procedure Connect; end; implementation uses UTreeView; {%CLASSGROUP 'Vcl.Controls.TControl'} {$R *.dfm} { TDBConnectionParams } constructor TDBConnectionParams.Create; begin inherited; //-----------------------------Убрать эту часть когда будет готов компонент------------------------ //Заполняет поля в ObjectInspector Self.Name:='ConnParams'; Self.SetDataBase('treeview_db'); //Self.SetDataBase(FDataBase); Self.SetPassword('masterkey'); SetUser_Name('root'); SetServer('localhost'); SetPort('3306'); SetCharacterSet('utf8'); end; //-------------------------ГЕТТЕРЫ, РЕАЛИЗАЦИЯ--------------------------- function TDBConnectionParams.GetCharacterSet: string; begin Result:=FCharacterSet; end; function TDBConnectionParams.GetDataBase: string; begin Result:=FDataBase; end; function TDBConnectionParams.GetMySQLDriverDir32: string; begin Result:=FMySQLDriverDir32; end; function TDBConnectionParams.GetPassword: string; begin Result:=FPassword; end; function TDBConnectionParams.GetPort: string; begin Result:=FPort; end; function TDBConnectionParams.GetServer: string; begin Result:=FServer; end; function TDBConnectionParams.GetUser_Name: string; begin Result:=FUser_Name; end; //------------------------СЕТТЕРЫ, РЕАЛИЗАЦИЯ----------------- procedure TDBConnectionParams.SetCharacterSet(Value: string); begin FCharacterSet:=Value; end; procedure TDBConnectionParams.SetDataBase(Value: string); begin FDataBase:=Value; end; procedure TDBConnectionParams.SetMySQLDriverDir32(Value: string); begin FMySQLDriverDir32:=trim(Value); end; procedure TDBConnectionParams.SetPassword(Value: string); begin FPassword:=trim(Value); end; procedure TDBConnectionParams.SetPort(Value: string); begin FPort:=trim(Value); end; procedure TDBConnectionParams.SetServer(Value: string); begin FServer:=trim(Value); end; procedure TDBConnectionParams.SetUser_Name(Value: string); begin FUser_Name:=trim(Value); end; //---------------------Реализация Assign------------------------- procedure TDBConnectionParams.Assign(Source: TPersistent); begin if Source is TDBConnectionParams then with Source As TDBConnectionParams do begin Self.MySQLDriverDir32:=MySQLDriverDir32; Self.DataBase:=DataBase; Self.User_Name:=User_Name; Self.Password:=Password; Self.Server:=Server; Self.Port:=Port; Self.CharacterSet:=CharacterSet; end; end; { TDBConnectionBPL } procedure TDBConnectionBPL.Connect; var oParams:Tstrings; s:string; begin if not Assigned(DBTreeViewGlobal) then exit; //if FDBConnectionParams.FMySQLDriverDir32<>'' then //FDPhysMySQLDriverLink.VendorLib:=FDBConnectionParams.FMySQLDriverDir32; //showmessage(FDPhysMySQLDriverLink.VendorLib); oParams := TStringList.Create; oParams.Add('DataBase='+FDBConnectionParams.DataBase); oParams.Add('Password='+FDBConnectionParams.Password); oParams.Add('User_Name='+FDBConnectionParams.User_Name); oParams.Add('Port='+FDBConnectionParams.Port); oParams.Add('Server='+FDBConnectionParams.Server); oParams.Add('CharacterSet='+FDBConnectionParams.CharacterSet); FDConnection.Params.Assign(oParams); FDConnection.DriverName:='MySQL'; try FDConnection.Connected:=true; except end; oParams.Free; end; procedure TDBConnectionBPL.DataModuleCreate(Sender: TObject); begin // Передача параметров соединения и таблицы из запущенной программы FDBConnectionParams:=TDBConnectionParams.Create(Self); Self.FDBConnectionParams.Assign(DBTreeViewGlobal.DBTreeViewConnParams); // <<<<< FDBTable:=TDBTable.Create(Self); Self.FDBTable.Assign(DBTreeViewGlobal.DBTreeViewTable); // <<<<< if Assigned(DBTreeViewGlobal) then Self.Connect; end; //-------------------------{ TDBTables } procedure TDBTable.Assign(Source: TPersistent); begin if Source is TDBTable then with Source as TDBTable do begin Self.TableName:=TableName; Self.id:=id; Self.idParent:=idParent; Self.NodeName:=NodeName; Self.IsFolder:=IsFolder; Self.IsChecked:=IsChecked; end; end; constructor TDBTable.Create; begin inherited; //---------------Временные значения для тестирования компонента Self.Name:='TableSettings'; Self.SetTable('tree'); Self.SetId('id'); Self.SetIdParent('idParent'); Self.SetIndex('Index'); Self.SetExpanded('IsExpanded'); Self.SetLevel('Level'); Self.SetName('Name'); Self.SetIsFolder('IsFolder'); Self.SetIsChecked('IsChecked'); end; //---------------Геттеры-------------------- function TDBTable.GetExpanded: string; begin Result:=FIsExpanded; end; function TDBTable.GetId: string; begin Result:=Fid; end; function TDBTable.GetIdParent: string; begin Result:=FIdParent; end; function TDBTable.GetIndex: string; begin Result:=FIndex; end; function TDBTable.GetIsChecked: string; begin Result:=FIsChecked; end; function TDBTable.GetIsFolder: string; begin Result:=FIsfolder; end; function TDBTable.GetLevel: string; begin Result:=FLevel; end; function TDBTable.GetName: string; begin Result:=FName; end; function TDBTable.GetTable: string; begin Result:=FTableName; end; //-------------------Сеттеры--------------------------- procedure TDBTable.SetId(Value: string); begin Fid:=trim(Value); end; procedure TDBTable.SetIdParent(Value: string); begin FIdParent:=trim(Value); end; procedure TDBTable.SetIndex(Value: string); begin FIndex:=trim(Value); end; procedure TDBTable.SetIsChecked(Value: string); begin FIsChecked:=trim(Value); end; procedure TDBTable.SetExpanded(Value: string); begin FIsExpanded:=trim(Value); end; procedure TDBTable.SetIsFolder(Value: string); begin FIsFolder:=trim(Value); end; procedure TDBTable.SetLevel(Value: string); begin FLevel:=trim(Value); end; procedure TDBTable.SetName(Value: string); begin FName:=trim(Value); end; procedure TDBTable.SetTable(Value: string); begin FTableName:=trim(Value); end; //------------------------------------------------- end. |