android ormlite foreign collection problem
I have a litte problem with Db selection.
I have masterproducts and dimensionsproducts. Normally a dimension has only one master product. But it can happen in rare cases that an entry is double. i get null on the onresult..
Relevant code:
in DbMasterProduct Object:
@ForeignCollectionField(eager = true, foreignFieldName = "masterProduct")
private ForeignCollection<DbProduct> products;
in DbProduct Object:
@DatabaseField(foreign = true, foreignAutoRefresh = true, columnName = "ZMASTERPRODUCT", foreignColumnName = "ZPRODUCTNUMBER")
protected DbMasterProduct masterProduct;
my selecting method:
public void getProductByProductnumber(final String productnumber, final QueryTask.Callback<List<DbProduct>> callback){
new QueryTask<List<DbProduct>>(){
@Override
protected List<DbProduct> queryInBackground() throws SQLException {
Where<DbProduct, Integer> query = getHelper().getProductDao().queryBuilder().where().eq("ZPRODUCT_NUMBER", productnumber);
return query.query();
}
}.start(callback);
}
Error:
'SELECT * FROM `ZMASTERPRODUCTS` WHERE `ZPRODUCTNUMBER` = ?' and 1 args, got >1 results
The problem is at the moment is a many to one relation but i need many to many. But how can i change this?
thanks in advance for help
android ormlite asked Nov 23 '18 at 9:46
AndreasAndreas
9212
add a comment |
I have a litte problem with Db selection.
I have masterproducts and dimensionsproducts. Normally a dimension has only one master product. But it can happen in rare cases that an entry is double. i get null on the onresult..
Relevant code:
in DbMasterProduct Object:
@ForeignCollectionField(eager = true, foreignFieldName = "masterProduct")
private ForeignCollection<DbProduct> products;
in DbProduct Object:
@DatabaseField(foreign = true, foreignAutoRefresh = true, columnName = "ZMASTERPRODUCT", foreignColumnName = "ZPRODUCTNUMBER")
protected DbMasterProduct masterProduct;
my selecting method:
public void getProductByProductnumber(final String productnumber, final QueryTask.Callback<List<DbProduct>> callback){
new QueryTask<List<DbProduct>>(){
@Override
protected List<DbProduct> queryInBackground() throws SQLException {
Where<DbProduct, Integer> query = getHelper().getProductDao().queryBuilder().where().eq("ZPRODUCT_NUMBER", productnumber);
return query.query();
}
}.start(callback);
}
Error:
'SELECT * FROM `ZMASTERPRODUCTS` WHERE `ZPRODUCTNUMBER` = ?' and 1 args, got >1 results
The problem is at the moment is a many to one relation but i need many to many. But how can i change this?
thanks in advance for help
android ormlite asked Nov 23 '18 at 9:46
AndreasAndreas
9212
add a comment |
I have a litte problem with Db selection.
I have masterproducts and dimensionsproducts. Normally a dimension has only one master product. But it can happen in rare cases that an entry is double. i get null on the onresult..
Relevant code:
in DbMasterProduct Object:
@ForeignCollectionField(eager = true, foreignFieldName = "masterProduct")
private ForeignCollection<DbProduct> products;
in DbProduct Object:
@DatabaseField(foreign = true, foreignAutoRefresh = true, columnName = "ZMASTERPRODUCT", foreignColumnName = "ZPRODUCTNUMBER")
protected DbMasterProduct masterProduct;
my selecting method:
public void getProductByProductnumber(final String productnumber, final QueryTask.Callback<List<DbProduct>> callback){
new QueryTask<List<DbProduct>>(){
@Override
protected List<DbProduct> queryInBackground() throws SQLException {
Where<DbProduct, Integer> query = getHelper().getProductDao().queryBuilder().where().eq("ZPRODUCT_NUMBER", productnumber);
return query.query();
}
}.start(callback);
}
Error:
'SELECT * FROM `ZMASTERPRODUCTS` WHERE `ZPRODUCTNUMBER` = ?' and 1 args, got >1 results
The problem is at the moment is a many to one relation but i need many to many. But how can i change this?
thanks in advance for help
android ormlite asked Nov 23 '18 at 9:46
AndreasAndreas
9212
I have a litte problem with Db selection.
I have masterproducts and dimensionsproducts. Normally a dimension has only one master product. But it can happen in rare cases that an entry is double. i get null on the onresult..
Relevant code:
in DbMasterProduct Object:
@ForeignCollectionField(eager = true, foreignFieldName = "masterProduct")
private ForeignCollection<DbProduct> products;
in DbProduct Object:
@DatabaseField(foreign = true, foreignAutoRefresh = true, columnName = "ZMASTERPRODUCT", foreignColumnName = "ZPRODUCTNUMBER")
protected DbMasterProduct masterProduct;
my selecting method:
public void getProductByProductnumber(final String productnumber, final QueryTask.Callback<List<DbProduct>> callback){
new QueryTask<List<DbProduct>>(){
@Override
protected List<DbProduct> queryInBackground() throws SQLException {
Where<DbProduct, Integer> query = getHelper().getProductDao().queryBuilder().where().eq("ZPRODUCT_NUMBER", productnumber);
return query.query();
}
}.start(callback);
}
Error:
'SELECT * FROM `ZMASTERPRODUCTS` WHERE `ZPRODUCTNUMBER` = ?' and 1 args, got >1 results
The problem is at the moment is a many to one relation but i need many to many. But how can i change this?
thanks in advance for help
android ormlite android ormlite asked Nov 23 '18 at 9:46
AndreasAndreas
9212
asked Nov 23 '18 at 9:46
AndreasAndreas
9212
asked Nov 23 '18 at 9:46
AndreasAndreas
9212
asked Nov 23 '18 at 9:46
AndreasAndreas
9212
asked Nov 23 '18 at 9:46
AndreasAndreas
9212
9212
add a comment |
add a comment |
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