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Fix the way data is seeded to prevent using disposed ef contexts

This commit is contained in:
Kiran Challa 2015-09-23 13:20:49 -07:00
parent 2c1f1a277a
commit f9a03e83e9
1 changed files with 9 additions and 5 deletions
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14
src/MusicStore/Models/SampleData.cs
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@ -20,8 +20,10 @@ namespace MusicStore.Models
public static async Task InitializeMusicStoreDatabaseAsync(IServiceProvider serviceProvider, bool createUsers = true) public static async Task InitializeMusicStoreDatabaseAsync(IServiceProvider serviceProvider, bool createUsers = true)
{ {
using (var db = serviceProvider.GetService<MusicStoreContext>()) using (var serviceScope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope())
{ {
var db = serviceScope.ServiceProvider.GetService<MusicStoreContext>();
if (await db.Database.EnsureCreatedAsync()) if (await db.Database.EnsureCreatedAsync())
{ {
await InsertTestData(serviceProvider); await InsertTestData(serviceProvider);
@ -50,13 +52,15 @@ namespace MusicStore.Models
{ {
// Query in a separate context so that we can attach existing entities as modified // Query in a separate context so that we can attach existing entities as modified
List<TEntity> existingData; List<TEntity> existingData;
using (var db = serviceProvider.GetService<MusicStoreContext>()) using (var serviceScope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope())
{ {
var db = serviceScope.ServiceProvider.GetService<MusicStoreContext>();
existingData = db.Set<TEntity>().ToList(); existingData = db.Set<TEntity>().ToList();
} }
using (var db = serviceProvider.GetService<MusicStoreContext>()) using (var serviceScope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope())
{ {
var db = serviceScope.ServiceProvider.GetService<MusicStoreContext>();
foreach (var item in entities) foreach (var item in entities)
{ {
db.Entry(item).State = existingData.Any(g => propertyToMatch(g).Equals(propertyToMatch(item))) db.Entry(item).State = existingData.Any(g => propertyToMatch(g).Equals(propertyToMatch(item)))
@ -120,8 +124,8 @@ namespace MusicStore.Models
private static Album[] GetAlbums(string imgUrl, Dictionary<string, Genre> genres, Dictionary<string, Artist> artists) private static Album[] GetAlbums(string imgUrl, Dictionary<string, Genre> genres, Dictionary<string, Artist> artists)
{ {
var albums = new Album[] var albums = new Album[]
{ {
new Album { Title = "The Best Of The Men At Work", Genre = genres["Pop"], Price = 8.99M, Artist = artists["Men At Work"], AlbumArtUrl = imgUrl }, new Album { Title = "The Best Of The Men At Work", Genre = genres["Pop"], Price = 8.99M, Artist = artists["Men At Work"], AlbumArtUrl = imgUrl },
new Album { Title = "...And Justice For All", Genre = genres["Metal"], Price = 8.99M, Artist = artists["Metallica"], AlbumArtUrl = imgUrl }, new Album { Title = "...And Justice For All", Genre = genres["Metal"], Price = 8.99M, Artist = artists["Metallica"], AlbumArtUrl = imgUrl },
new Album { Title = "עד גבול האור", Genre = genres["World"], Price = 8.99M, Artist = artists["אריק אינשטיין"], AlbumArtUrl = imgUrl }, new Album { Title = "עד גבול האור", Genre = genres["World"], Price = 8.99M, Artist = artists["אריק אינשטיין"], AlbumArtUrl = imgUrl },