Merge branch 'master' into pr/119

This commit is contained in:
Eric Fleming
2019-01-22 20:33:06 -05:00
149 changed files with 3069 additions and 1053 deletions

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@@ -1,5 +1,4 @@
using Microsoft.AspNetCore.Builder;
using Microsoft.eShopWeb.ApplicationCore.Entities;
using Microsoft.eShopWeb.ApplicationCore.Entities;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;

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@@ -31,7 +31,6 @@ namespace Microsoft.eShopWeb.Infrastructure.Data
return List(spec).FirstOrDefault();
}
public virtual async Task<T> GetByIdAsync(int id)
{
return await _dbContext.Set<T>().FindAsync(id);
@@ -42,44 +41,28 @@ namespace Microsoft.eShopWeb.Infrastructure.Data
return _dbContext.Set<T>().AsEnumerable();
}
public async Task<List<T>> ListAllAsync()
public async Task<IReadOnlyList<T>> ListAllAsync()
{
return await _dbContext.Set<T>().ToListAsync();
}
public IEnumerable<T> List(ISpecification<T> spec)
{
// fetch a Queryable that includes all expression-based includes
var queryableResultWithIncludes = spec.Includes
.Aggregate(_dbContext.Set<T>().AsQueryable(),
(current, include) => current.Include(include));
// modify the IQueryable to include any string-based include statements
var secondaryResult = spec.IncludeStrings
.Aggregate(queryableResultWithIncludes,
(current, include) => current.Include(include));
// return the result of the query using the specification's criteria expression
return secondaryResult
.Where(spec.Criteria)
.AsEnumerable();
return ApplySpecification(spec).AsEnumerable();
}
public async Task<List<T>> ListAsync(ISpecification<T> spec)
public async Task<IReadOnlyList<T>> ListAsync(ISpecification<T> spec)
{
// fetch a Queryable that includes all expression-based includes
var queryableResultWithIncludes = spec.Includes
.Aggregate(_dbContext.Set<T>().AsQueryable(),
(current, include) => current.Include(include));
// modify the IQueryable to include any string-based include statements
var secondaryResult = spec.IncludeStrings
.Aggregate(queryableResultWithIncludes,
(current, include) => current.Include(include));
// return the result of the query using the specification's criteria expression
return await secondaryResult
.Where(spec.Criteria)
.ToListAsync();
return await ApplySpecification(spec).ToListAsync();
}
public int Count(ISpecification<T> spec)
{
return ApplySpecification(spec).Count();
}
public async Task<int> CountAsync(ISpecification<T> spec)
{
return await ApplySpecification(spec).CountAsync();
}
public T Add(T entity)
@@ -103,6 +86,7 @@ namespace Microsoft.eShopWeb.Infrastructure.Data
_dbContext.Entry(entity).State = EntityState.Modified;
_dbContext.SaveChanges();
}
public async Task UpdateAsync(T entity)
{
_dbContext.Entry(entity).State = EntityState.Modified;
@@ -114,10 +98,16 @@ namespace Microsoft.eShopWeb.Infrastructure.Data
_dbContext.Set<T>().Remove(entity);
_dbContext.SaveChanges();
}
public async Task DeleteAsync(T entity)
{
_dbContext.Set<T>().Remove(entity);
await _dbContext.SaveChangesAsync();
}
private IQueryable<T> ApplySpecification(ISpecification<T> spec)
{
return SpecificationEvaluator<T>.GetQuery(_dbContext.Set<T>().AsQueryable(), spec);
}
}
}

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@@ -1,7 +1,6 @@
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Migrations;
using System;
using System.Collections.Generic;
namespace Microsoft.eShopWeb.Infrastructure.Data.Migrations
{

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@@ -1,5 +1,4 @@
// <auto-generated />
using System;
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Metadata;

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@@ -1,7 +1,6 @@
using Microsoft.eShopWeb.ApplicationCore.Entities.OrderAggregate;
using Microsoft.eShopWeb.ApplicationCore.Interfaces;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using System.Threading.Tasks;
namespace Microsoft.eShopWeb.Infrastructure.Data
@@ -12,20 +11,12 @@ namespace Microsoft.eShopWeb.Infrastructure.Data
{
}
public Order GetByIdWithItems(int id)
{
return _dbContext.Orders
.Include(o => o.OrderItems)
.Include($"{nameof(Order.OrderItems)}.{nameof(OrderItem.ItemOrdered)}")
.FirstOrDefault();
}
public Task<Order> GetByIdWithItemsAsync(int id)
{
return _dbContext.Orders
.Include(o => o.OrderItems)
.Include($"{nameof(Order.OrderItems)}.{nameof(OrderItem.ItemOrdered)}")
.FirstOrDefaultAsync();
.FirstOrDefaultAsync(x => x.Id == id);
}
}
}

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@@ -0,0 +1,50 @@
using Microsoft.EntityFrameworkCore;
using Microsoft.eShopWeb.ApplicationCore.Entities;
using Microsoft.eShopWeb.ApplicationCore.Interfaces;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Microsoft.eShopWeb.Infrastructure.Data
{
public class SpecificationEvaluator<T> where T : BaseEntity
{
public static IQueryable<T> GetQuery(IQueryable<T> inputQuery, ISpecification<T> specification)
{
var query = inputQuery;
// modify the IQueryable using the specification's criteria expression
if (specification.Criteria != null)
{
query = query.Where(specification.Criteria);
}
// Includes all expression-based includes
query = specification.Includes.Aggregate(query,
(current, include) => current.Include(include));
// Include any string-based include statements
query = specification.IncludeStrings.Aggregate(query,
(current, include) => current.Include(include));
// Apply ordering if expressions are set
if (specification.OrderBy != null)
{
query = query.OrderBy(specification.OrderBy);
}
else if (specification.OrderByDescending != null)
{
query = query.OrderByDescending(specification.OrderByDescending);
}
// Apply paging if enabled
if (specification.isPagingEnabled)
{
query = query.Skip(specification.Skip)
.Take(specification.Take);
}
return query;
}
}
}