SQL-303: TaskExtensions.SeedForTaskTesting

This statement is a read operation invoked through ORM (NHibernate LINQ). Executed by TaskExtensions.SeedForTaskTesting.

Classification

Field	Value
SQL ID	SQL-303
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	TaskExtensions
Criteria property	N/A — ORM
Lifecycle method	SeedForTaskTesting

Tables

Table	Access	Columns used
TASK_ACTION_CODE	SELECT (existence) + INSERT, ×1 (hypothetical)	Code, CODE_DESCR

LINQ statement

Source: Data/SAIF.Data/TestRepository/RepositoryExtensions/TaskExtensions.cs:12.

// Data/SAIF.Data/TestRepository/RepositoryExtensions/TaskExtensions.cs:12
uow.GetRepository<TaskAction>().Seed();

// Data/SAIF.Data/TestRepository/RepositoryExtensions/TaskExtensions.cs:29-33
public static IRepository<TaskAction> Seed(this IRepository<TaskAction> repo)
{
    repo.AddCode("NONE", "No Action Required");
    return repo;
}

Sample SQL

Test double — no runtime SQL. This statement executes against TestUnitOfWork/TestRepository<T> (in-memory, List<TEntity>-backed test doubles in SAIF.Framework.Core); no NHibernate session is opened and no SQL is issued at runtime. The SQL below is the hypothetical statement the same expression would produce against a real NHibernate IUnitOfWork using the in-repo mappings, shown to document the mapping shape only — no database table is accessed when this code runs.

Inferred SQL: This SQL was inferred from the LINQ statement above and the NHibernate mappings. It is not concrete SQL from source code; NHibernate generates the executed statement at runtime, so aliases, column order, join syntax, and bind-parameter names may differ.

-- Inferred from LINQ (NHibernate mapping translation); not concrete SQL
-- AddCode pattern (SharedExtensions.cs:26-27), issued 1 time(s); first call shown ('NONE', 'No Action Required')
SELECT *
FROM (
  SELECT 1
  FROM TASK_ACTION_CODE TAC
  WHERE TAC.Code = :code
    AND TAC.CODE_DESCR = :description)
WHERE ROWNUM <= 1

-- only when the probe returns no row
INSERT INTO TASK_ACTION_CODE (
  Code,
  CODE_DESCR)
VALUES (
  :Code,
  :Description)

Translation notes: - AddCode(code, description) (Data/SAIF.Data/TestRepository/RepositoryExtensions/SharedExtensions.cs:23-28) runs repo.Query().Any(x => x.Code == code && x.Description == description) and, only if false, repo.Add(new T { Code, Description }). The pair is issued once per call (1 calls, lines 29-33). - Columns not set by AddCode are written as NULL (or the mapped default) in the INSERT.

Sources

• Data/SAIF.Data/TestRepository/RepositoryExtensions/TaskExtensions.cs:12