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Show if field contains a NULL value

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Show 'NULL' for those fields in a table which contain a NULL value. This
allows the user to see the difference between an empty string field and
a NULL field.

Also change the format of the 'BLOB' information shown for binary data
to match the new 'NULL' information.

See issue #163.
This commit is contained in:
Martin Kleusberg
2014-11-29 15:02:10 +01:00
parent 31915c4061
commit 9e4a6df804
1 changed files with 24 additions and 2 deletions
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26
src/sqlitetablemodel.cpp
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@@ -229,9 +229,20 @@ QVariant SqliteTableModel::data(const QModelIndex &index, int role) const
const_cast<SqliteTableModel*>(this)->fetchMore(); // Nothing evil to see here, move along
if(role == Qt::DisplayRole && isBinary(index))
return "(BLOB)";
return "BLOB";
else if(role == Qt::DisplayRole && m_data.at(index.row()).at(index.column()).isNull())
return "NULL";
else
return m_data.at(index.row()).at(index.column());
} else if(role == Qt::FontRole) {
QFont font;
if(m_data.at(index.row()).at(index.column()).isNull() || isBinary(index))
font.setItalic(true);
return font;
} else if(role == Qt::TextColorRole) {
if(m_data.at(index.row()).at(index.column()).isNull() || isBinary(index))
return QColor(Qt::gray);
return QColor(Qt::black);
} else {
return QVariant();
}
@@ -379,7 +390,18 @@ void SqliteTableModel::fetchData(unsigned int from, unsigned to)
{
QByteArrayList rowdata;
for (int i = 0; i < m_headers.size(); ++i)
rowdata.append(QByteArray(static_cast<const char*>(sqlite3_column_blob(stmt, i)), sqlite3_column_bytes(stmt, i)));
{
if(sqlite3_column_type(stmt, i) == SQLITE_NULL)
{
rowdata.append(QByteArray());
} else {
int bytes = sqlite3_column_bytes(stmt, i);
if(bytes)
rowdata.append(QByteArray(static_cast<const char*>(sqlite3_column_blob(stmt, i)), bytes));
else
rowdata.append(QByteArray(""));
}
}
m_data.push_back(rowdata);
}
}