Select complete row, get/set data in row by columns header names

[homerun4711]

Hello!

I have two questions about models and hope that you can help me.


1.)
I want to select a complete row and read out the data. The following function is called on Signal clicked() from QTableView:

QModelIndex index = m_customerTableView->currentIndex();
int i = index.row(); // now you know which record was selected
m_customerTableView->selectRow(i);

QModelIndex index = m_customerTableView->currentIndex();
int i = index.row(); // now you know which record was selected
m_customerTableView->selectRow(i);

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Now the row is selected and I can read out the data using

QModelIndexList indexes = m_customerTableView->selectionModel()->selectedIndexes();

QModelIndexList indexes = m_customerTableView->selectionModel()->selectedIndexes();

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So far so good, this works, but since I want only one row to be selected I want to use

m_customerTableView->setSelectionMode(QAbstractItemView::SingleSelection);
m_customerTableView->setSelectionBehavior(QAbstractItemView::SelectRows);

m_customerTableView->setSelectionMode(QAbstractItemView::SingleSelection);
m_customerTableView->setSelectionBehavior(QAbstractItemView::SelectRows);

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and instead of selectedIndexes() I want to use

QModelIndexList indexes = m_customerTableView->selectionModel()->selectedColumns();

QModelIndexList indexes = m_customerTableView->selectionModel()->selectedColumns();

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But I could not get this to work. The QModelIndexList is empty.

Is it possible to use it in the way I want or is the method I mentioned first the better way? Or is there another solution?

2.)
So far I read/write the data from/to the rows one field after another. The column-order is set via QMaps, e.g.

map_customer.insert(0,"Customer No.");
map_customer.insert(1,"Title");
map_customer.insert(2,"First name");
map_customer.insert(3,"Last name");

map_customer.insert(0,"Customer No.");
map_customer.insert(1,"Title");
map_customer.insert(2,"First name");
map_customer.insert(3,"Last name");

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but this is not very low-maintance if something in the data structure is changed.

Is there an easy possibility to read/write data in a row by the models header name?

Pseudo-code could be:

//set headers
model->setHeaderData(column, Qt::Horizontal, "FirstName");
//write data to column with given header name
int row = 2; //set row to write
model(row, "FirstName")->setData("SomeData")

//set headers
model->setHeaderData(column, Qt::Horizontal, "FirstName");
//write data to column with given header name
int row = 2; //set row to write
model(row, "FirstName")->setData("SomeData")

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Or better solution?

Thanks in advance.

Kind regards,
HomeR

[homerun4711]

Ok, I found an answer to question 2. I will solve this using enums.

I will search for an answer myself now, but is it possible to pass an enum as a parameter to a function?
So that it can define all enums in a central place and pass them e.g. to my DataReader to put the data correctly into a model?

[boudie]

Why not simply put a few defines into the headerfile of the DataModel?

#define COLUMN_FIRST_NAME		0
#define COLUMN_LAST_NAME		1
etc

#define COLUMN_FIRST_NAME		0
#define COLUMN_LAST_NAME		1
etc

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[homerun4711]

Thanks for you answer. Hm, I guess that would be similar to an enum. But since I am moving away from a xml-file based storage towards an SQLite-database this is easier to handle anyway.

Kind regards,
HomeR