void SHP2ASCDlg::OnCOpenIshpClick( wxCommandEvent& event )
{
try{
ConnectDatasourceDlg dlg(this);
if (dlg.ShowModal() != wxID_OK) return;
wxString proj_title = dlg.GetProjectTitle();
wxString layer_name = dlg.GetLayerName();
IDataSource* datasource = dlg.GetDataSource();
wxString ds_name = datasource->GetOGRConnectStr();
GdaConst::DataSourceType ds_type = datasource->GetType();
ogr_ds = new OGRDatasourceProxy(ds_name, ds_type, true);
ogr_layer = ogr_ds->GetLayerProxy(layer_name.ToStdString());
ogr_layer->ReadData();
bool is_valid_layer = true;
if (ogr_layer->IsTableOnly()) {
wxMessageBox("This is not a shape datasource. Please open a valid "
"shape datasource, e.g. ESRI Shapefile, PostGIS layer...");
is_valid_layer = false;
}
if (ogr_layer->GetNumFields() == 0){
wxMessageBox("No fields found!");
is_valid_layer = false;
}
if ( !is_valid_layer) {
delete ogr_ds;
ogr_ds = NULL;
return;
}
m_X->Clear();
for (int i=0; i<ogr_layer->GetNumFields(); i++){
m_X->Append(wxString::Format("%s",ogr_layer->GetFieldName(i)));
}
m_X->SetSelection(0);
m_inputfile->SetValue(layer_name);
FindWindow(XRCID("IDC_OPEN_OASC"))->Enable(true);
FindWindow(XRCID("IDC_FIELD_ASC"))->Enable(true);
FindWindow(XRCID("IDC_KEYVAR"))->Enable(true);
} catch (GdaException& e) {
wxMessageDialog dlg (this, e.what(), "Error", wxOK | wxICON_ERROR);
dlg.ShowModal();
return;
}
}
/**
* When user choose a data source, validate it first,
* then create a Project() that will be used by the
* main program.
*/
void ExportDataDlg::OnOkClick( wxCommandEvent& event )
{
int datasource_type = m_ds_notebook->GetSelection();
IDataSource* datasource = GetDatasource();
wxString ds_name = datasource->GetOGRConnectStr();
GdaConst::DataSourceType ds_type = datasource->GetType();
if (ds_name.length() <= 0 ) {
wxMessageDialog dlg(this, "Please specify a valid data source name.",
"Warning", wxOK | wxICON_WARNING);
dlg.ShowModal();
return;
}
bool is_update = false;
wxString tmp_ds_name;
try{
TableInterface* table = NULL;
OGRSpatialReference* spatial_ref = NULL;
if ( project_p == NULL ) {
//project does not exist, could be created a datasource from
//geometries only, e.g. boundray file
} else {
//case: save current open datasource as a new datasource
table = project_p->GetTableInt();
spatial_ref = project_p->GetSpatialReference();
// warning if saveas not compaptible
GdaConst::DataSourceType o_ds_type = project_p->GetDatasourceType();
bool o_ds_table_only = IDataSource::IsTableOnly(o_ds_type);
bool n_ds_table_only = IDataSource::IsTableOnly(ds_type);
if (o_ds_table_only && !n_ds_table_only) {
if (project_p && project_p->main_data.records.size() ==0) {
if (ds_type == GdaConst::ds_geo_json ||
ds_type == GdaConst::ds_kml ||
ds_type == GdaConst::ds_shapefile) {
// can't save a table-only ds to non-table-only ds,
// if there is no new geometries to be saved.
wxString msg = "GeoDa can't export a Table-only data "
"source to a Geometry data source. Please try to add a "
"geometry layer and then export.";
throw GdaException(msg.mb_str());
}
}
} else if ( !o_ds_table_only && n_ds_table_only) {
// possible loss geom data save a non-table ds to table-only ds
wxString msg = "The geometries will not be saved when exporting "
"a Geometry data source to a Table-only data source.\n\n"
"Do you want to continue?";
wxMessageDialog dlg(this, msg, "Warning: loss data",
wxYES_NO | wxICON_WARNING);
if (dlg.ShowModal() != wxID_YES)
return;
}
}
// by default the datasource will be re-created, except for some special
// cases: e.g. sqlite, ESRI FileGDB
if (datasource_type == 0) {
if (wxFileExists(ds_name)) {
if (ds_name.EndsWith(".sqlite")) {
// add new layer to existing sqlite
is_update = true;
} else {
wxRemoveFile(ds_name);
}
} else if (wxDirExists(ds_name)) {
// only for adding new layer to ESRI File Geodatabase
is_update = true;
wxDir dir(ds_name);
wxString first_filename;
if (!dir.GetFirst(&first_filename)) {
// for an empty .gdb directory, create a new FileGDB datasource
is_update = false;
wxRmDir(ds_name);
}
}
}
if( !CreateOGRLayer(ds_name, table, spatial_ref, is_update) ) {
wxString msg = "Exporting has been cancelled.";
throw GdaException(msg.mb_str(), GdaException::NORMAL);
}
// save project file
if (m_chk_create_project->IsChecked() ) {
//wxString proj_fname = project_file_name;
wxString proj_fname = wxEmptyString;
ProjectConfiguration* project_conf = NULL;
if ( m_chk_create_project->IsChecked() ){
// Export case: create a project file
// Export means exporting current datasource to a new one, and
// create a new project file that is based on this datasource.
// E.g. export a shape file to PostgreGIS layer, then the new
// project file should has <datasource> content of database
// configuration
wxString file_dlg_title = "GeoDa Project to Save As";
wxString file_dlg_type = "GeoDa Project (*.gda)|*.gda";
wxFileDialog dlg(this, file_dlg_title, wxEmptyString,
wxEmptyString, file_dlg_type,
wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
if (dlg.ShowModal() != wxID_OK) return;
wxFileName f(dlg.GetPath());
f.SetExt("gda");
proj_fname = f.GetFullPath();
// copy a project_conf for exporting, will be deleted later
project_conf = project_p->GetProjectConf()->Clone();
}
// save project file
wxFileName new_proj_fname(proj_fname);
wxString proj_title = new_proj_fname.GetName();
LayerConfiguration* layer_conf
= project_conf->GetLayerConfiguration();
layer_conf->SetName(layer_name);
layer_conf->UpdateDataSource(datasource);
project_conf->Save(proj_fname);
// in export case, delete cloned project_conf
if ( proj_fname.empty() ) {
delete project_conf;
//delete datasource; Note: it is deleted in project_conf
}
}
} catch (GdaException& e) {
if (e.type() == GdaException::NORMAL)
return;
// special clean up for file datasource
if ( !tmp_ds_name.empty() ) {
if ( wxFileExists(tmp_ds_name) && !tmp_ds_name.EndsWith(".sqlite")){
wxRemoveFile(ds_name);
wxCopyFile(tmp_ds_name, ds_name);
wxRemoveFile(tmp_ds_name);
}
}
wxMessageDialog dlg(this, e.what() , "Error", wxOK | wxICON_ERROR);
dlg.ShowModal();
return;
}
wxString msg = "Export successfully.";
//msg << "\n\nTips: if you want to use exported project/datasource, please"
// << " close current project and then open exported project/datasource.";
wxMessageDialog dlg(this, msg , "Info", wxOK | wxICON_INFORMATION);
dlg.ShowModal();
EndDialog(wxID_OK);
}
