49 lines
1.6 KiB
C#
49 lines
1.6 KiB
C#
using Entities.Contracts;
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using Microsoft.EntityFrameworkCore.Metadata.Builders;
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using Microsoft.EntityFrameworkCore;
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namespace TechHelper.Context.Configuration
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{
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public class AssignmentAttachmentConfiguration : IEntityTypeConfiguration<ExamAttachment>
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{
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public void Configure(EntityTypeBuilder<ExamAttachment> builder)
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{
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builder.ToTable("assignment_attachments");
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builder.HasKey(aa => aa.Id);
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builder.Property(aa => aa.Id)
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.HasColumnName("id");
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builder.Property(aa => aa.AssignmentId)
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.HasColumnName("assignment_id")
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.IsRequired();
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builder.Property(aa => aa.FilePath)
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.HasColumnName("file_path")
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.IsRequired()
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.HasMaxLength(255);
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builder.Property(aa => aa.FileName)
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.HasColumnName("file_name")
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.IsRequired()
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.HasMaxLength(255);
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builder.Property(aa => aa.UploadedAt)
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.HasColumnName("uploaded_at")
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.ValueGeneratedOnAdd(); // Set value on creation
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builder.Property(aa => aa.IsDeleted)
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.HasColumnName("deleted")
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.HasDefaultValue(false);
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// Configure the relationship explicitly
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builder.HasOne(aa => aa.Exam) // An AssignmentAttachment has one Assignment
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.WithMany(a => a.ExamAttachments) // An Assignment has many AssignmentAttachments (assuming 'Attachments' collection in Assignment)
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.HasForeignKey(aa => aa.AssignmentId) // The foreign key is AssignmentAttachment.AssignmentId
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.IsRequired() // It's a required relationship based on your [Required] attribute
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.OnDelete(DeleteBehavior.Cascade); // If an Assignment is deleted, its attachments should also be deleted
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}
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}
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}
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