Class DbContextExtensions

Defines a collection of extensions for types.

Inheritance

System.Object

DbContextExtensions

Namespace: MADE.Data.EFCore.Extensions

Assembly: MADE.Data.EFCore.dll

Syntax

public static class DbContextExtensions : object

Methods

RemoveWhere<T>(DbSet<T>, Expression<Func<T, Boolean>>)

Removes entities from a using the specified predicate.

Declaration

public static void RemoveWhere<T>(this DbSet<T> set, Expression<Func<T, bool>> predicate)

    where T : class

Parameters

Type	Name	Description
DbSet<T>	set	The data set to remove entities from.
Expression<Func<T, System.Boolean>>	predicate	The function for determining the items to remove.

Type Parameters

Name	Description
T	The type of entity to remove.

SetEntityDates(DbContext)

Sets the dates of EntityBase entities being tracked in an added or modified state.

It is best to call this method in an override of the DbContext.SaveChangesAsync method in your data context.

Declaration

public static void SetEntityDates(this DbContext context)

Parameters

Type	Name	Description
DbContext	context	The to update entity dates for.

TryAsync<TContext>(TContext, Func<TContext, Task>, Action<Exception>)

Attempts to perform an action on the data context.

Declaration

public static async Task<bool> TryAsync<TContext>(this TContext context, Func<TContext, Task> action, Action<Exception> onError = null)

    where TContext : DbContext

Parameters

Type	Name	Description
TContext	context	The .
Func<TContext, Task>	action	The action to run.
Action<Exception>	onError	An exception for handling the exception thrown, for example, event logging.

Returns

Type	Description
Task<System.Boolean>	True if the action ran successfully; otherwise, false.

Type Parameters

Name	Description
TContext	The type of data context.

TrySaveChangesAsync(DbContext, Action<Exception>, CancellationToken)

Attempts to save all changes made in this context to the database.

Declaration

public static async Task<bool> TrySaveChangesAsync(this DbContext context, Action<Exception> onError = null, CancellationToken cancellationToken = null)

Parameters

Type	Name	Description
DbContext	context	The .
Action<Exception>	onError	An exception for handling the exception thrown, for example, event logging.
CancellationToken	cancellationToken	A to observe while waiting for the task to complete.

Returns

Type	Description
Task<System.Boolean>	True if the changes saved successfully; otherwise, false.

UpdateAsync<T>(DbContext, T, CancellationToken)

Updates an entity within the context and saves the changes.

Declaration

public static async Task UpdateAsync<T>(this DbContext context, T entity, CancellationToken cancellationToken = null)

Parameters

Type	Name	Description
DbContext	context	The .
T	entity	The entity to update.
CancellationToken	cancellationToken	The cancellation token.

Returns

Type	Description
Task	An asynchronous operation.

Type Parameters

Name	Description
T	The type of entity to update.