119 lines
4.6 KiB
C#
119 lines
4.6 KiB
C#
using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Metadata.Builders;
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using TakeoutSaaS.Domain.Dictionary.Entities;
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using TakeoutSaaS.Domain.SystemParameters.Entities;
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using TakeoutSaaS.Infrastructure.Common.Persistence;
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using TakeoutSaaS.Shared.Abstractions.Ids;
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using TakeoutSaaS.Shared.Abstractions.Security;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Infrastructure.Dictionary.Persistence;
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/// <summary>
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/// 参数字典 DbContext：承载字典与系统参数。
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/// </summary>
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public sealed class DictionaryDbContext(
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DbContextOptions<DictionaryDbContext> options,
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ITenantProvider tenantProvider,
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ICurrentUserAccessor? currentUserAccessor = null,
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IIdGenerator? idGenerator = null)
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: TenantAwareDbContext(options, tenantProvider, currentUserAccessor, idGenerator)
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{
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/// <summary>
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/// 字典分组集合。
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/// </summary>
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public DbSet<DictionaryGroup> DictionaryGroups => Set<DictionaryGroup>();
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/// <summary>
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/// 字典项集合。
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/// </summary>
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public DbSet<DictionaryItem> DictionaryItems => Set<DictionaryItem>();
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/// <summary>
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/// 系统参数集合。
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/// </summary>
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public DbSet<SystemParameter> SystemParameters => Set<SystemParameter>();
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/// <summary>
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/// 配置实体模型。
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/// </summary>
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/// <param name="modelBuilder">模型构建器。</param>
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protected override void OnModelCreating(ModelBuilder modelBuilder)
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{
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base.OnModelCreating(modelBuilder);
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ConfigureGroup(modelBuilder.Entity<DictionaryGroup>());
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ConfigureItem(modelBuilder.Entity<DictionaryItem>());
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ConfigureSystemParameter(modelBuilder.Entity<SystemParameter>());
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ApplyTenantQueryFilters(modelBuilder);
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}
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/// <summary>
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/// 配置字典分组。
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/// </summary>
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/// <param name="builder">实体构建器。</param>
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private static void ConfigureGroup(EntityTypeBuilder<DictionaryGroup> builder)
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{
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builder.ToTable("dictionary_groups");
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builder.HasKey(x => x.Id);
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builder.Property(x => x.TenantId).IsRequired();
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builder.Property(x => x.Code).HasMaxLength(64).IsRequired();
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builder.Property(x => x.Name).HasMaxLength(128).IsRequired();
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builder.Property(x => x.Scope).HasConversion<int>().IsRequired();
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builder.Property(x => x.Description).HasMaxLength(512);
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builder.Property(x => x.IsEnabled).HasDefaultValue(true);
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ConfigureAuditableEntity(builder);
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ConfigureSoftDeleteEntity(builder);
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builder.HasIndex(x => x.TenantId);
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builder.HasIndex(x => new { x.TenantId, x.Code }).IsUnique();
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}
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/// <summary>
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/// 配置字典项。
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/// </summary>
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/// <param name="builder">实体构建器。</param>
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private static void ConfigureItem(EntityTypeBuilder<DictionaryItem> builder)
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{
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builder.ToTable("dictionary_items");
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builder.HasKey(x => x.Id);
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builder.Property(x => x.TenantId).IsRequired();
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builder.Property(x => x.GroupId).IsRequired();
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builder.Property(x => x.Key).HasMaxLength(64).IsRequired();
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builder.Property(x => x.Value).HasMaxLength(256).IsRequired();
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builder.Property(x => x.Description).HasMaxLength(512);
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builder.Property(x => x.SortOrder).HasDefaultValue(100);
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builder.Property(x => x.IsEnabled).HasDefaultValue(true);
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ConfigureAuditableEntity(builder);
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ConfigureSoftDeleteEntity(builder);
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builder.HasOne(x => x.Group)
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.WithMany(g => g.Items)
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.HasForeignKey(x => x.GroupId)
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.OnDelete(DeleteBehavior.Cascade);
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builder.HasIndex(x => x.TenantId);
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builder.HasIndex(x => new { x.GroupId, x.Key }).IsUnique();
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}
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/// <summary>
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/// 配置系统参数。
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/// </summary>
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/// <param name="builder">实体构建器。</param>
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private static void ConfigureSystemParameter(EntityTypeBuilder<SystemParameter> builder)
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{
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builder.ToTable("system_parameters");
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builder.HasKey(x => x.Id);
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builder.Property(x => x.TenantId).IsRequired();
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builder.Property(x => x.Key).HasMaxLength(128).IsRequired();
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builder.Property(x => x.Value).HasColumnType("text").IsRequired();
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builder.Property(x => x.Description).HasMaxLength(512);
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builder.Property(x => x.SortOrder).HasDefaultValue(100);
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builder.Property(x => x.IsEnabled).HasDefaultValue(true);
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ConfigureAuditableEntity(builder);
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ConfigureSoftDeleteEntity(builder);
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builder.HasIndex(x => x.TenantId);
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builder.HasIndex(x => new { x.TenantId, x.Key }).IsUnique();
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}
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}
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