public UnionSelectQuery <TResult> From <TEntity>(Action <SelectFromBuilder <TEntity> > configure)
{
if (configure == null)
{
throw new ArgumentNullException(nameof(configure), "Select builder configure action must be provided.");
}
var builder = new SelectFromBuilder <TEntity>();
configure.Invoke(builder);
_selects.Add(builder.BuildQuery());
if (!_metadataResolved)
{
(Type propertyType, PostgresDataType dataType) = builder.GetMetadata();
_propertyType = propertyType;
_dataType = dataType;
}
return(this);
}
public SelectQueryFluentBuilder <TModel, TModel> SelectOnly(FieldListBuilder <TModel> builder)
{
return(new SelectQueryFluentBuilder <TModel, TModel>(SelectFromBuilder.FromFieldListBuilder(builder), false, _executor));
}
public SelectQueryFluentBuilder <TModel, bool> Exists()
{
return(new SelectQueryFluentBuilder <TModel, bool>(SelectFromBuilder.FromExpression <TModel, int>(x => 1), true, _executor));
}
public SelectQueryFluentBuilder <TModel, TNewModel> Select <TNewModel>(Expression <Func <TModel, TNewModel> > pr)
{
return(new SelectQueryFluentBuilder <TModel, TNewModel>(SelectFromBuilder.FromExpression(pr), false, _executor));
}
public SelectQueryFluentBuilder <TModel, TModel> Select()
{
return(new SelectQueryFluentBuilder <TModel, TModel>(SelectFromBuilder.AllColumns <TModel>(), false, _executor));
}
public SelectQueryFluentBuilder(SelectFromBuilder selectFromBuilder, bool existsQuery, QueryExecutor executor = null)
{
_executor = executor;
_selectFromBuilder = selectFromBuilder;
_existsQuery = existsQuery;
}
public SelectQueryFluentBuilder <TCombinedModel, TNewModel> Select <TNewModel>(Expression <Func <TCombinedModel, TNewModel> > pr)
{
return(new SelectQueryFluentBuilder <TCombinedModel, TNewModel>(SelectFromBuilder.FromCombinedExpression(_tablesList, pr), false, _executor));
}
public SelectQueryFluentBuilder <TCombinedModel, TCombinedModel> Select()
{
return(new SelectQueryFluentBuilder <TCombinedModel, TCombinedModel>(SelectFromBuilder.AllColumnsFromCombined <TCombinedModel>(_tablesList), false, _executor));
}
