A simple library to minimise code bloat from repetitive database access code. For use with other libraries or code that relies on IDbConnection and IDbTransaction such as Dapper or my dapper wrapper DapperFluent
Requires an implementation of IDbConnectionFactory
Once you have an instance of IDbDelegator you can call .Execute on it. It accepts a minimum set of function signatures to be able to do all the necessary db access you might require.
Any void function with a parameter of IDbConnection
public void ExampleSectionOfCode()
{
... useful stuff
db.Execute(UpdateUserRecordLastAccessed);
...
}
...
private void UpdateUserRecordLastAccessed(IDbConnection c)
{
... use IDbConnection
}
Any void function with a parameter of IDbConnection and a second paramter of type T
public void ExampleSectionOfCode()
{
... useful stuff
db.Execute(UpdateUserRecordLastAccessed, DateTime.Now);
...
}
private void UpdateUserRecordLastAccessed2(IDbConnection c, DateTime now)
{
... use IDbConnection and now
}
Any function with a parameter of IDbConnection and a return type of T
public void ExampleSectionOfCode()
{
... useful stuff
db.Execute(GetLastAccessedUserDate, DateTime.Now);
...
}
private DateTime GetLastAccessedUserDate(IDbConnection c)
{
return DateTime using IDbConnection
}
Any function with a parameter of IDbConnection and another of type TIn a return type of TOut
public void ExampleSectionOfCode()
{
... useful stuff
db.Execute(UserRecordGetLastAccessed, userId);
...
}
private DateTime UserRecordGetLastAccessed(IDbConnection c, Guid userId)
{
return DateTime using IDbConnection and userId
}
These are the same as the non transactional but you replace IDbConnection with IDbTransaction
public void ExampleSectionOfCode()
{
... useful stuff
db.Execute(UserRecordGetLastAccessed, userId);
...
}
private DateTime UserRecordGetLastAccessed(IDbTransaction t, Guid userId)
{
return DateTime using IDbTransaction and userId
}
The transaction is commited at the end of execute. If you want to section off different parts of a query just compose them
private void SomethingUseful(IDbTransaction t)
{
PartA(t);
PartB(t);
}
private void PartA(IDbTransaction t)
{
}
private void PartB(IDbTransaction t)
{
}
