Can you give some guidance on when it is better to use dataManager.save() vs dataContext.commit() ?
My application has a screen (FinTxferBrowse2) that extends MasterDetailScreen. I want to be able to select multiple rows and update the chosen attribute(column) to a given value for each selected row.
I have a function onSetBtnCick that will loop through each selected row and update the attribute to a specified value if the if the associated checkbox is enabled. See code below:
My first attempt was to use dataContext.commit(), but I kept getting unfetched attiribute errors on the second iteration on the line where I called dataContext.merge.
So I switched to using dataManager.save() and it works, but I am confused.
What is the purpose of dataContext if I can achieve the same thing with dataManager ?
Why would I get unfetched attribute errors on the second iteration of executing dataContext.merge ?
Ampata Issue 5
Ampata Branch Issue-5
I am using jMix 1.2 and PostgreSQL 14.
@Subscribe("setBtn")
public void onSetBtnClick(Button.ClickEvent event) {
String logPrfx = "onSetBtnClick";
logger.trace(logPrfx + " --> ");
List<GenNode> thisFinTxfers = table.getSelected().stream().toList();
if (thisFinTxfers == null || thisFinTxfers.isEmpty()) {
logger.debug(logPrfx + " --- thisFinTxfer is null, likely because no records are selected.");
notifications.create().withCaption("No records selected. Please select one or more record.").show();
logger.trace(logPrfx + " <-- ");
return;
}
thisFinTxfers.forEach(thisFinTxfer -> {
GenNode thisTrackedFinTxfer = thisFinTxfer;
//GenNode thisTrackedFinTxfer = dataContext.merge(thisFinTxfer);
if (thisTrackedFinTxfer != null) {
if (tmplt_finTxact1_EI1_RoleFieldChk.isChecked()){
thisTrackedFinTxfer.setFinTxact1_EI1_Role(tmplt_finTxact1_EI1_RoleField.getValue());}
LocalDateTime idTs1 = thisTrackedFinTxfer.getIdTs() != null ? thisTrackedFinTxfer.getIdTs().getTs1() : null;
if (tmplt_beg1Ts1FieldChk.isChecked()) {
idTs1 = tmplt_beg1Ts1Field.getValue();
thisTrackedFinTxfer.getBeg1().setTs1(idTs1);
updateIdTs(thisTrackedFinTxfer);
}
Integer idX = thisTrackedFinTxfer.getIdX();
if (tmplt_idXFieldRdo.getValue() != null){
// Set
if (tmplt_idXFieldRdo.getValue() == 1){
idX = tmplt_idXField.getValue();
thisTrackedFinTxfer.setIdX(idX);
}
// Max
else if (tmplt_idXFieldRdo.getValue() == 2
&& idTs1 != null) {
idX = getIdXMax(idTs1);
if (idX == null) return;
thisTrackedFinTxfer.setIdX(idX);
}
}
Integer idY = thisTrackedFinTxfer.getIdY();
if (tmplt_idYFieldRdo.getValue() != null){
// Set
if (tmplt_idYFieldRdo.getValue() == 1){
idY = tmplt_idYField.getValue();
thisTrackedFinTxfer.setIdY(idY);
}
// Max
else if (tmplt_idYFieldRdo.getValue() == 2
&& idTs1 != null) {
idY = getIdYMax(idTs1, idX);
if (idY == null) return;
thisTrackedFinTxfer.setIdY(idY);
}
}
Integer idZ = thisTrackedFinTxfer.getIdZ();
if (tmplt_idZFieldRdo.getValue() != null) {
// Set
if (tmplt_idZFieldRdo.getValue() == 1) {
idZ = tmplt_idZField.getValue();
thisTrackedFinTxfer.setIdZ(idZ);
}
// Max
else if (tmplt_idZFieldRdo.getValue() == 2
&& idTs1 != null) {
idZ = getIdZMax(idTs1, idX, idY);
if (idZ == null) return;
thisTrackedFinTxfer.setIdZ(idZ);
}
}
if (tmplt_finStmt1_IdFieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmt1_Id(tmplt_finStmt1_IdField.getValue());}
if (tmplt_finStmtItm1_Desc1FieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmtItm1_Desc1(tmplt_finStmtItm1_Desc1Field.getValue());}
if (tmplt_finStmtItm1_Desc2FieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmtItm1_Desc2(tmplt_finStmtItm1_Desc2Field.getValue());}
if (tmplt_finStmtItm1_Desc3FieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmtItm1_Desc3(tmplt_finStmtItm1_Desc3Field.getValue());}
if (tmplt_finStmtItm1_DescAmtFieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmtItm1_DescAmt(tmplt_finStmtItm1_DescAmtField.getValue());}
if (tmplt_finStmtItm1_RefIdFieldChk.isChecked()){
thisTrackedFinTxfer.setFinStmtItm1_RefId(tmplt_finStmtItm1_RefIdField.getValue());}
if (tmplt_finAcct1_IdFieldChk.isChecked()){
thisTrackedFinTxfer.setFinAcct1_Id(tmplt_finAcct1_IdField.getValue());}
if (tmplt_finDept1_IdFieldChk.isChecked()){
thisTrackedFinTxfer.setFinDept1_Id(tmplt_finDept1_IdField.getValue());}
if (tmplt_amtDebtFieldChk.isChecked()){
thisTrackedFinTxfer.setAmtDebt(tmplt_amtDebtField.getValue());}
if (tmplt_amtCredFieldChk.isChecked()){
thisTrackedFinTxfer.setAmtCred(tmplt_amtCredField.getValue());}
thisTrackedFinTxfer.setId2Calc(thisTrackedFinTxfer.getId2CalcFrFields());
thisTrackedFinTxfer.setId2(thisTrackedFinTxfer.getId2Calc());
Integer finTxactOption = updateColItemCalcValsTxactOption.getValue();
if (finTxactOption == null){
finTxactOption = 0;}
Integer finTxsetOption = updateColItemCalcValsTxsetOption.getValue();
if (finTxsetOption == null){
finTxsetOption = 0;}
updateCalcVals(thisTrackedFinTxfer, finTxactOption, finTxsetOption);
//logger.debug(logPrfx + " --- executing metadataTools.copy(thisTrackedFinTxfer,thisFinTxfer).");
//metadataTools.copy(thisTrackedFinTxfer, thisFinTxfer);
//logger.debug(logPrfx + " --- executing dataContext.commit().");
//dataContext.commit();
logger.debug(logPrfx + " --- executing dataManager.save(thisFinTxfer).");
dataManager.save(thisFinTxfer);
}
});
//call dataContext.commit to sync the UI with the changes to the database
logger.debug(logPrfx + " --- executing dataContext.commit().");
dataContext.commit();
//logger.debug(logPrfx + " --- executing finTxfersDl.load().");
//finTxfersDl.load();
//Loop throught the items again to update the id2Dup attribute
thisFinTxfers.forEach(thisFinTxfer -> {
GenNode thisTrackedFinTxfer = thisFinTxfer;
//GenNode thisTrackedFinTxfer = dataContext.merge(thisFinTxfer);
if (thisTrackedFinTxfer != null) {
Integer id2Dup = thisTrackedFinTxfer.getId2Dup();
//thisTrackedFinTxfer = dataContext.merge(thisFinTxfer);
updateId2Dup(thisTrackedFinTxfer);
Integer id2Dup2 = thisTrackedFinTxfer.getId2Dup();
//thisFinTxfer.setId2Dup(thisTrackedFinTxfer.getId2Dup());
//logger.debug(logPrfx + " --- executing dataContext.commit().");
//dataContext.commit();
if (id2Dup != id2Dup2){
logger.debug(logPrfx + " --- executing dataManager.save(thisFinTxfer).");
dataManager.save(thisFinTxfer);
}
}
});
logger.debug(logPrfx + " --- executing dataContext.commit().");
dataContext.commit();
logger.debug(logPrfx + " --- executing finTxfersDl.load().");
finTxfersDl.load();
table.sort("id2", Table.SortDirection.ASCENDING);
table.setSelected(thisFinTxfers);
logger.trace(logPrfx + " <-- ");
}