New Blog Post: PDF/A and Metadata

Send a filter string?

edited February 2017 in End User
Hi Team,
This moght not be the right place for it.
Is it possible to send a complete filter string to the report engine?
e.g. The App user sets a Filter on his/her table, then calls RB via the normal LoadReport/Print. The table filter
condition is passed to RB and used when generating the report..

Regards & TIA,
Ian

Comments

  • edited February 2017
    On 09/02/2017 05:52, Ian Branch wrote:

    Our app has rich end user reporting interface, including a report setup
    that allows for specifying a primary search criterion. When the report
    is run we check for this and then any form that supports printing passes
    the selection data to the report that is relevant, e.g. THIS invoice ID
    or these invoice IDs. It's all managed via a centralized reporting
    class. Here the key method:

    function TrbReporting.SetReportSQLFilter(aReport: TppReport;
    aReportDetails: TReportDetails; aFilterList: TStrings; aFilterInfo:
    TStrings = nil): TSearchCriteriaMode;
    var
    lSQLBuilder: TdaSQLBuilder;
    lCriterionIndex: Integer;
    ldaCriteria: TdaCriteria;
    lppParameter: TppParameter;
    begin

    Result := scmNone;

    // if this report is not linked to a database then exit
    if aReport.DataPipeline = nil then
    exit;

    lSQLBuilder := TdaSQLBuilder.Create(aReport.DataPipeline);

    lCriterionIndex :=
    lSQLBuilder.SearchCriteria.IndexOf(aReportDetails.FilterTable,
    aReportDetails.FilterField);

    try

    // if user has manually edited the SQL then we need to get out of here.
    if lSQLBuilder.SQL.EditSQLAsText then
    begin
    // user TppParameterListAccess cracker class to access
    GetParameterForName as the aReport.Parameters.Items[] property always
    returns a TppParameter, even a dummy one!
    lppParameter :=
    TppParameterListAccess(aReport.Parameters).GetParameterForName(aReportDetails.FilterField);

    if (assigned(lppParameter)) and (aFilterList.count > 0) then
    begin
    lppParameter.Value := aFilterList[0];
    aReport.ShowAutoSearchDialog := False;

    Result := scmParamater;
    end;

    exit;

    end;

    if lCriterionIndex > -1 then
    begin

    if
    lSQLBuilder.SearchCriteria.Items[lCriterionIndex]..operator<>dacoInList then
    raise EReportBuilderSearchError.Create('Primary search criterion
    should have an "IN LIST" operator');

    if aFilterList.count > 0 then
    lSQLBuilder.SearchCriteria.Items[lCriterionIndex].Value :=
    aFilterList.CommaText
    else
    lSQLBuilder.SearchCriteria.Items[lCriterionIndex].ShowAllValues
    := True;

    lSQLBuilder.ApplyUpdates;

    Result := scmDaCriteria;

    end
    else
    begin
    ldaCriteria :=
    lSQLBuilder.SearchCriteria.Add(aReportDetails.FilterTable,
    aReportDetails.FilterField, 'IN', aFilterList.CommaText);

    if assigned(ldaCriteria) then
    begin
    if aFilterList.count > 0 then
    ldaCriteria.Value := aFilterList.CommaText
    else
    ldaCriteria.ShowAllValues := True;

    Result := scmDaCriteria;
    end
    else
    begin
    MessageDlg('It was not possible to create search criterion for
    this report according to its Setup detail. Please check the Filter
    values.', mtWarning, [mbOK], 0);
    exit;
    end;

    lSQLBuilder.ApplyUpdates;
    end;

    finally
    if
    ApplicationDynamicSettings.CommandLineSwitchExists(ShowReportingSQLCode)
    then
    showmemoform(lSQLBuilder.SQL.SQLText.Text);

    lSQLBuilder.Free;
    end;

    if assigned(aFilterInfo) then
    begin
    if aReport.Parameters.InList(FiltersInfoParam) then
    aReport.Parameters.Items[FiltersInfoParam].AsString :=
    aFilterInfo.Text;

    end;

    end;
This discussion has been closed.