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eAtasOrais.Model.ConexaoBD.pas
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eAtasOrais.Model.ConexaoBD.pas
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unit eAtasOrais.Model.ConexaoBD;
interface
uses
eAtasOrais.Model.Interfaces,
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.FMXUI.Wait,
FireDAC.Phys.MSSQLDef,
FireDAC.Phys.ODBCBase,
FireDAC.Phys.MSAccDef,
FireDAC.Phys.MSAcc,
FireDAC.Comp.UI,
FireDAC.DApt,
Data.DB,
FireDAC.Comp.Client;
Type
TModelConexaoBD = Class(TInterfacedObject, iModelConexaoSOP)
Private
FConexao : tfdconnection;
Class var FConn : iModelConexaoSOP;
Public
Constructor Create;
Destructor Destroy; Override;
Class function New: iModelConexaoSOP;
Function Periodos : tfdmemtable;
Function Turmas (Periodo: string) : tfdmemtable;
Function Turma (Periodo, Turma: string) : tfdmemtable;
Function Alunos (periodo, Cod_cur, Num_niv, num_tur: string) : tfdmemtable;
Function Professores (Periodo: string) : tdataset;
End;
implementation
uses
eAtasOrais.Model.Configuracao, System.SysUtils, eAtasOrais.Model.Consts2,
FireDAC.Stan.Param, FMX.Dialogs;
{ TModelConexaoSOP }
function TModelConexaoBD.Alunos(periodo, Cod_cur, Num_niv, num_tur: string): tfdmemtable;
var
teste1: string;
teste2: string;
begin
//tentar achar outra solução para fazer a busca de alunos melhorar
Teste1 := 'SELECT DISTINCT Alu.Nom_alu, Mat.Cod_Coe from tbAlunos alu, tbMatricula Mat WHERE (Mat.Cod_cur = '+cod_cur+') and (mat.Num_niv = '+num_niv+') and (mat.num_tur = '+Num_tur+') and (Mat.num_per = '+quotedstr(periodo)+') ';
teste2 := 'and (Mat.flg_Mat = ''MP'') and (Alu.cod_alu = mat.cod_alu) ORDER BY Alu.Nom_alu';
FConexao.ExecSQL(teste1+teste2, tdataset(Result));
end;
constructor TModelConexaoBD.Create;
var Config: iModelConfiguracao;
begin
FConexao := TFDConnection.Create(nil);
Config := TModelConfiguracao.New;
FConexao.DriverName := 'MSAcc';
FConexao.Params.Database := Config.Banco + 'eAtasOrais.base.mdb';
FConexao.LoginPrompt := false;
end;
destructor TModelConexaoBD.Destroy;
begin
FConexao.DisposeOf;
inherited;
end;
class function TModelConexaoBd.New: iModelConexaoSOP;
begin
if not Assigned(FConn) then
Fconn := Self.Create;
Result := FConn;
end;
function TModelConexaoBd.Periodos: tfdmemtable;
begin
FConexao.ExecSQl(SQL_PERIODOS, tdataset(Result));
end;
function TModelConexaoBD.Professores(Periodo: string): tdataset;
var
Parametros : TFDParams;
begin
Parametros := TFDParams.Create;
try
Parametros.Add('periodo', periodo);
FConexao.ExecSQL(SQL_PROFESSORES1+SQL_PROFESSORES2, Parametros , TDataSet(Result));
finally
Parametros.DisposeOf;
end;
end;
function TModelConexaoBD.Turma(Periodo, Turma: string): tfdmemtable;
var
Parametros : tfdparams;
begin
Parametros := TFDParams.Create;
try
parametros.Add('periodo', periodo);
Parametros.Add('turma', Turma, ptInput);
FConexao.ExecSQL(SQL_TURMAS1+SQL_TURMAS2, parametros, tdataset(Result));
finally
Parametros.DisposeOf;
end;
end;
function TModelConexaoBD.Turmas(periodo: string): tfdmemtable;
var
Parametros : TFDParams;
begin
Parametros := TFDParams.Create;
try
Parametros.Add('periodo', periodo);
FConexao.ExecSQL(SQL_Lista_TURMAS1+SQL_Lista_TURMAS2, Parametros , TDataSet(Result));
finally
Parametros.DisposeOf;
end;
end;
end.