state after adding all of the user stuff and messing around with the wierd brave bug
This commit is contained in:
525
OpenArchival.DataAccess/Providers/ArtifactGroupingProvider.cs
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525
OpenArchival.DataAccess/Providers/ArtifactGroupingProvider.cs
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@@ -0,0 +1,525 @@
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using System.Diagnostics.CodeAnalysis;
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namespace OpenArchival.DataAccess;
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public class ArtifactGroupingProvider : IArtifactGroupingProvider
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{
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private readonly IDbContextFactory<ApplicationDbContext> _context;
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private readonly ILogger<ArtifactGroupingProvider> _logger;
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[SetsRequiredMembers]
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public ArtifactGroupingProvider(IDbContextFactory<ApplicationDbContext> context, ILogger<ArtifactGroupingProvider> logger)
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{
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_context = context;
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_logger = logger;
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}
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public async Task<ArtifactGrouping?> GetGroupingAsync(int id)
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{
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await using var context = await _context.CreateDbContextAsync();
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return await context.ArtifactGroupings
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.Include(g => g.Category)
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.Include(g => g.IdentifierFields)
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.Include(g => g.Type)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.StorageLocation)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Type)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Tags)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.ListedNames)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Defects)
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.Include(g => g.ViewCount) // Added
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.Include(g => g.IdentifierFields)
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.Where(g => g.Id == id)
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.FirstOrDefaultAsync();
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}
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public async Task<ArtifactGrouping?> GetGroupingAsync(string artifactGroupingIdentifier)
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{
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await using var context = await _context.CreateDbContextAsync();
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return await context.ArtifactGroupings
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.Include(g => g.Category)
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.Include(g => g.IdentifierFields)
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.Include(g => g.Type)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.StorageLocation)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Type)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Tags)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.ListedNames)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Defects)
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.Include(g => g.ViewCount) // Added
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.Where(g => g.ArtifactGroupingIdentifier == artifactGroupingIdentifier)
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.FirstOrDefaultAsync();
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}
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public async Task CreateGroupingAsync(ArtifactGrouping grouping)
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{
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await using var context = await _context.CreateDbContextAsync();
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// Attach the Category to the context. If it has a key, it will be tracked.
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context.Attach(grouping.Category);
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// --- Local caches for de-duplication within this transaction ---
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var processedTypes = new Dictionary<string, ArtifactType>();
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var processedLocations = new Dictionary<string, ArtifactStorageLocation>();
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var processedTags = new Dictionary<string, ArtifactEntryTag>();
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var processedNames = new Dictionary<string, ListedName>();
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var processedDefects = new Dictionary<string, ArtifactDefect>();
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// --- End local caches ---
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// --- Helper functions to get unique entities (from cache or DB) ---
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async Task<ArtifactType> GetUniqueTypeAsync(ArtifactType typeToProcess)
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{
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if (string.IsNullOrEmpty(typeToProcess?.Name)) return typeToProcess;
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if (processedTypes.TryGetValue(typeToProcess.Name, out var uniqueType))
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{
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return uniqueType;
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}
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var dbType = await context.ArtifactTypes.FirstOrDefaultAsync(t => t.Name == typeToProcess.Name);
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if (dbType != null)
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{
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processedTypes[dbType.Name] = dbType;
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return dbType;
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}
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processedTypes[typeToProcess.Name] = typeToProcess;
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return typeToProcess;
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}
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async Task<ArtifactStorageLocation> GetUniqueLocationAsync(ArtifactStorageLocation locationToProcess)
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{
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if (string.IsNullOrEmpty(locationToProcess?.Location)) return locationToProcess;
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if (processedLocations.TryGetValue(locationToProcess.Location, out var uniqueLocation))
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{
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return uniqueLocation;
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}
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var dbLocation = await context.ArtifactStorageLocations.FirstOrDefaultAsync(l => l.Location == locationToProcess.Location);
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if (dbLocation != null)
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{
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processedLocations[dbLocation.Location] = dbLocation;
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return dbLocation;
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}
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processedLocations[locationToProcess.Location] = locationToProcess;
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return locationToProcess;
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}
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async Task<ArtifactEntryTag> GetUniqueTagAsync(ArtifactEntryTag tagToProcess)
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{
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if (string.IsNullOrEmpty(tagToProcess?.Name)) return tagToProcess;
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if (processedTags.TryGetValue(tagToProcess.Name, out var uniqueTag))
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{
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return uniqueTag;
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}
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var dbTag = await context.ArtifactEntryTags.FirstOrDefaultAsync(t => t.Name == tagToProcess.Name);
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if (dbTag != null)
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{
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processedTags[dbTag.Name] = dbTag;
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return dbTag;
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}
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processedTags[tagToProcess.Name] = tagToProcess;
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return tagToProcess;
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}
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async Task<ListedName> GetUniqueNameAsync(ListedName nameToProcess)
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{
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if (string.IsNullOrEmpty(nameToProcess?.Value)) return nameToProcess;
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if (processedNames.TryGetValue(nameToProcess.Value, out var uniqueName))
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{
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return uniqueName;
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}
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var dbName = await context.ArtifactAssociatedNames.FirstOrDefaultAsync(n => n.Value == nameToProcess.Value);
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if (dbName != null)
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{
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processedNames[dbName.Value] = dbName;
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return dbName;
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}
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processedNames[nameToProcess.Value] = nameToProcess;
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return nameToProcess;
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}
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async Task<ArtifactDefect> GetUniqueDefectAsync(ArtifactDefect defectToProcess)
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{
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if (string.IsNullOrEmpty(defectToProcess?.Description)) return defectToProcess;
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if (processedDefects.TryGetValue(defectToProcess.Description, out var uniqueDefect))
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{
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return uniqueDefect;
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}
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var dbDefect = await context.ArtifactDefects.FirstOrDefaultAsync(d => d.Description == defectToProcess.Description);
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if (dbDefect != null)
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{
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processedDefects[dbDefect.Description] = dbDefect;
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return dbDefect;
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}
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processedDefects[defectToProcess.Description] = defectToProcess;
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return defectToProcess;
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}
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// --- End helper functions ---
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// De-duplicate the main grouping's type
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grouping.Type = await GetUniqueTypeAsync(grouping.Type);
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// Iterate through all child entries to handle their related entities.
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foreach (var entry in grouping.ChildArtifactEntries)
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{
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// Handle Artifact Types
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entry.Type = await GetUniqueTypeAsync(entry.Type);
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// Handle Storage Location
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entry.StorageLocation = await GetUniqueLocationAsync(entry.StorageLocation);
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// Handle Tags
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var managedTags = new List<ArtifactEntryTag>();
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foreach (var tag in entry.Tags)
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{
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managedTags.Add(await GetUniqueTagAsync(tag));
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}
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entry.Tags = managedTags;
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// Handle Listed Names
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var managedNames = new List<ListedName>();
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foreach (var name in entry.ListedNames)
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{
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managedNames.Add(await GetUniqueNameAsync(name));
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}
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entry.ListedNames = managedNames;
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// Handle Defects
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var managedDefects = new List<ArtifactDefect>();
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foreach (var defect in entry.Defects)
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{
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managedDefects.Add(await GetUniqueDefectAsync(defect));
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}
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entry.Defects = managedDefects;
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}
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// Concatinate all of the text to be searchable by postgres
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grouping.GenerateSearchIndex();
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// Add the new grouping and save changes.
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context.ChangeTracker.TrackGraph(grouping, node =>
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{
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// If the entity's key is set, EF should treat it as an existing, unchanged entity.
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if (node.Entry.IsKeySet)
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{
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node.Entry.State = EntityState.Unchanged;
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}
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// Otherwise, it's a new entity that needs to be inserted.
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else
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{
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node.Entry.State = EntityState.Added;
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}
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});
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await context.SaveChangesAsync();
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}
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public async Task UpdateGroupingAsync(ArtifactGrouping updatedGrouping)
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{
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await using var context = await _context.CreateDbContextAsync();
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// 1. Retrieve the existing grouping object from the database, eagerly loading all related data.
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var existingGrouping = await context.ArtifactGroupings
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.Include(g => g.Category)
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.Include(g => g.IdentifierFields)
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.Include(g => g.Type)
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.Include(g => g.ViewCount) // Load ViewCount
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//.Include(g => g.BlogPosts) // BlogPosts not handled yet
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.StorageLocation)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Type)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Tags)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.ListedNames)
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.Include(g => g.ChildArtifactEntries)
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.ThenInclude(e => e.Defects)
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.Where(g => g.Id == updatedGrouping.Id)
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.FirstOrDefaultAsync();
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if (existingGrouping == null)
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{
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return;
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}
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// 2. Manually copy over primitive properties.
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existingGrouping.Title = updatedGrouping.Title;
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existingGrouping.Description = updatedGrouping.Description;
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existingGrouping.IsPublicallyVisible = updatedGrouping.IsPublicallyVisible;
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existingGrouping.IdentifierFields = updatedGrouping.IdentifierFields;
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// Handle one-to-many relationships (Type, Category).
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var existingGroupingType = await context.ArtifactTypes.FirstOrDefaultAsync(t => t.Name == updatedGrouping.Type.Name);
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if (existingGroupingType != null)
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{
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existingGrouping.Type = existingGroupingType;
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}
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else
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{
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existingGrouping.Type = updatedGrouping.Type;
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}
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if (existingGrouping.Category.Name != updatedGrouping.Category.Name)
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{
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existingGrouping.Category = updatedGrouping.Category;
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context.Add(existingGrouping.Category);
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}
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// Handle ViewCount (Added)
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if (updatedGrouping.ViewCount != null)
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{
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if (existingGrouping.ViewCount == null)
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{
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// Create a new ViewCount
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existingGrouping.ViewCount = new ArtifactGroupingViewCount
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{
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Grouping = existingGrouping,
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Views = updatedGrouping.ViewCount.Views
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};
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}
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else
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{
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// Update existing ViewCount
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existingGrouping.ViewCount.Views = updatedGrouping.ViewCount.Views;
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}
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}
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// TODO: Handle BlogPosts update (requires model definition & de-duplication)
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// await DeDuplicateGroupingRelationsAsync(context, updatedGrouping);
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// existingGrouping.BlogPosts.Clear();
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// updatedGrouping.BlogPosts.ForEach(post => existingGrouping.BlogPosts.Add(post));
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// 3. Synchronize the ChildArtifactEntries collection.
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var updatedEntryIds = updatedGrouping.ChildArtifactEntries.Select(e => e.Id).ToList();
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var entriesToRemove = existingGrouping.ChildArtifactEntries
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.Where(e => !updatedEntryIds.Contains(e.Id))
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.ToList();
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foreach (var entryToRemove in entriesToRemove)
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{
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existingGrouping.ChildArtifactEntries.Remove(entryToRemove);
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}
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foreach (var updatedEntry in updatedGrouping.ChildArtifactEntries)
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{
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// FIRST, de-duplicate all related entities on the incoming entry.
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await DeDuplicateEntryRelationsAsync(context, updatedEntry);
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var existingEntry = existingGrouping.ChildArtifactEntries
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.FirstOrDefault(e => e.Id == updatedEntry.Id);
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if (existingEntry != null)
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{
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// The entry exists, so manually update its properties.
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existingEntry.Title = updatedEntry.Title;
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existingEntry.Description = updatedEntry.Description;
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existingEntry.ArtifactNumber = updatedEntry.ArtifactNumber;
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existingEntry.IsPubliclyVisible = updatedEntry.IsPubliclyVisible;
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existingEntry.AssociatedDates = updatedEntry.AssociatedDates;
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existingEntry.FileTextContent = updatedEntry.FileTextContent;
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existingEntry.Quantity = updatedEntry.Quantity;
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existingEntry.Links = updatedEntry.Links;
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// The relations on updatedEntry are already de-duplicated, so just assign them.
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existingEntry.StorageLocation = updatedEntry.StorageLocation;
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existingEntry.Type = updatedEntry.Type;
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// For collections, clear the old ones and add the new de-duplicated ones.
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existingEntry.Tags.Clear();
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updatedEntry.Tags.ForEach(tag => existingEntry.Tags.Add(tag));
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existingEntry.ListedNames.Clear();
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updatedEntry.ListedNames.ForEach(name => existingEntry.ListedNames.Add(name));
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existingEntry.Defects.Clear();
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updatedEntry.Defects.ForEach(defect => existingEntry.Defects.Add(defect));
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}
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else
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{
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// The entry is new and its children are already de-duplicated, so just add it.
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existingGrouping.ChildArtifactEntries.Add(updatedEntry);
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}
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}
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existingGrouping.GenerateSearchIndex();
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// 4. Save all changes.
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await context.SaveChangesAsync();
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}
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private async Task DeDuplicateEntryRelationsAsync(ApplicationDbContext context, ArtifactEntry entry)
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{
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// --- Handle One-to-Many Relationships ---
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var existingLocation = await context.ArtifactStorageLocations.FirstOrDefaultAsync(l => l.Location == entry.StorageLocation.Location);
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if (existingLocation != null)
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{
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entry.StorageLocation = existingLocation;
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}
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var existingType = await context.ArtifactTypes.FirstOrDefaultAsync(t => t.Name == entry.Type.Name);
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if (existingType != null)
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{
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entry.Type = existingType;
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}
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// --- Handle Many-to-Many Relationships ---
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// De-duplicate Tags
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var processedTags = new List<ArtifactEntryTag>();
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foreach (var tag in entry.Tags)
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{
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var existingTag = await context.ArtifactEntryTags.FirstOrDefaultAsync(t => t.Name == tag.Name) ?? tag;
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processedTags.Add(existingTag);
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}
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entry.Tags = processedTags;
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// De-duplicate ListedNames
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var processedNames = new List<ListedName>();
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if (entry.ListedNames != null)
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{
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foreach (var name in entry.ListedNames)
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{
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var existingName = await context.ArtifactAssociatedNames.FirstOrDefaultAsync(n => n.Value == name.Value) ?? name;
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processedNames.Add(existingName);
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}
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entry.ListedNames = processedNames;
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}
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// De-duplicate Defects
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var processedDefects = new List<ArtifactDefect>();
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if (entry.Defects != null)
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{
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foreach (var defect in entry.Defects)
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{
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var existingDefect = await context.ArtifactDefects.FirstOrDefaultAsync(d => d.Description == defect.Description) ?? defect;
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processedDefects.Add(existingDefect);
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}
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entry.Defects = processedDefects;
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}
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}
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/// <summary>
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/// A helper method to synchronize many-to-many collections.
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/// </summary>
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private async Task SyncCollectionAsync<TEntity, TKey>(
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DbContext context,
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ICollection<TEntity> existingItems,
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ICollection<TEntity> updatedItems,
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Func<TEntity, TKey> keySelector) where TEntity : class
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{
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var existingKeys = existingItems.Select(keySelector).ToHashSet();
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var updatedKeys = updatedItems.Select(keySelector).ToHashSet();
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// 1. Remove items that are no longer in the updated collection
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var keysToRemove = existingKeys.Except(updatedKeys);
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var itemsToRemove = existingItems.Where(item => keysToRemove.Contains(keySelector(item))).ToList();
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foreach (var item in itemsToRemove)
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{
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existingItems.Remove(item);
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}
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// 2. Identify keys for brand new items
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var keysToAdd = updatedKeys.Except(existingKeys).ToList();
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if (!keysToAdd.Any())
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{
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return; // Nothing to add
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}
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// 3. Batch-fetch all entities from the DB that match the new keys.
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Dictionary<TKey, TEntity> existingDbItemsMap = [];
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if (typeof(TEntity) == typeof(ArtifactEntryTag))
|
||||
{
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var tagKeys = keysToAdd.Cast<string>().ToList();
|
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var tags = await context.Set<ArtifactEntryTag>()
|
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.Where(t => tagKeys.Contains(t.Name))
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.ToListAsync();
|
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existingDbItemsMap = tags.ToDictionary(t => (TKey)(object)t.Name) as Dictionary<TKey, TEntity>;
|
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}
|
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else if (typeof(TEntity) == typeof(ListedName))
|
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{
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var nameKeys = keysToAdd.Cast<string>().ToList();
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||||
var names = await context.Set<ListedName>()
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||||
.Where(n => nameKeys.Contains(n.Value))
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.ToListAsync();
|
||||
existingDbItemsMap = names.ToDictionary(n => (TKey)(object)n.Value) as Dictionary<TKey, TEntity>;
|
||||
}
|
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else if (typeof(TEntity) == typeof(ArtifactDefect))
|
||||
{
|
||||
var defectKeys = keysToAdd.Cast<string>().ToList();
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||||
var defects = await context.Set<ArtifactDefect>()
|
||||
.Where(d => defectKeys.Contains(d.Description))
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||||
.ToListAsync();
|
||||
existingDbItemsMap = defects.ToDictionary(d => (TKey)(object)d.Description) as Dictionary<TKey, TEntity>;
|
||||
}
|
||||
// TODO: Add support for other entity types like BlogPost or ArtifactEntry if needed
|
||||
|
||||
|
||||
// 4. Add the items, using the tracked entity from the DB if it exists.
|
||||
foreach (var updatedItem in updatedItems.Where(i => keysToAdd.Contains(keySelector(i))))
|
||||
{
|
||||
var key = keySelector(updatedItem);
|
||||
if (existingDbItemsMap.TryGetValue(key, out var dbItem))
|
||||
{
|
||||
// The item already exists in the DB, so add the tracked version.
|
||||
existingItems.Add(dbItem);
|
||||
}
|
||||
else
|
||||
{
|
||||
// This is a brand new item, so add the untracked one from the input.
|
||||
existingItems.Add(updatedItem);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public async Task DeleteGroupingAsync(int id)
|
||||
{
|
||||
await using var context = await _context.CreateDbContextAsync();
|
||||
await context.ArtifactGroupings
|
||||
.Where(p => p.Id == id)
|
||||
.ExecuteDeleteAsync();
|
||||
|
||||
await context.SaveChangesAsync();
|
||||
}
|
||||
|
||||
public async Task DeleteGroupingAsync(ArtifactGrouping grouping)
|
||||
{
|
||||
await using var context = await _context.CreateDbContextAsync();
|
||||
context.ArtifactGroupings.Remove(grouping);
|
||||
await context.SaveChangesAsync();
|
||||
}
|
||||
|
||||
public async Task<List<ArtifactGrouping>> GetGroupingsPaged(int pageNumber, int resultsCount)
|
||||
{
|
||||
await using var context = await _context.CreateDbContextAsync();
|
||||
if (pageNumber < 1 || resultsCount < 1)
|
||||
{
|
||||
throw new ArgumentOutOfRangeException($"Either page number or number of results was less than or equal to 0. {nameof(pageNumber)}={pageNumber} {nameof(resultsCount)}={resultsCount}");
|
||||
}
|
||||
|
||||
var totalCount = await context.ArtifactGroupings.CountAsync();
|
||||
|
||||
var items = await context.ArtifactGroupings
|
||||
.Include(g => g.ChildArtifactEntries)
|
||||
.Include(g => g.Category)
|
||||
.OrderBy(g => g.Id)
|
||||
.Skip((pageNumber - 1) * resultsCount)
|
||||
.Take(resultsCount)
|
||||
.ToListAsync();
|
||||
|
||||
return items;
|
||||
}
|
||||
|
||||
public async Task<int> GetTotalCount()
|
||||
{
|
||||
await using var context = await _context.CreateDbContextAsync();
|
||||
return context.ArtifactGroupings.Count();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user