public bool Delete <TEntity>(List <TEntity> entities) where TEntity : class
{
try
{
_dataContext.RemoveRange(entities.AsEnumerable());
return(true);
}
catch (Exception)
{
return(false);
}
}
public IndexResult BuildIndex()
{
var specs = RetrieveSpecs();
// todo: semantic versioning & version comparison (write that version class!)
// todo: use semantic versioning to compare different versions of same package, and set islatest... properties.
var added = new List <Nuspec>();
var updated = new List <Nuspec>();
foreach (var spec in specs)
{
db.Database.EnsureCreated();
var package = db.Packages.FirstOrDefault(p => p.Identifier == spec.Metadata.Id && p.Version == spec.Metadata.Version);
if (package == null)
{
added.Add(spec);
AddNewPackage(spec);
}
else
{
updated.Add(spec);
UpdatePackage(package, spec);
}
}
var remainingKeys = added.Union(updated).Select(spec => $"{spec.Metadata.Id}:{spec.Metadata.Version}").ToArray();
var deletedPackages = db.Packages.Select(p => new { Package = p, Key = $"{p.Identifier}:{p.Version}" }).Where(p => !remainingKeys.Contains(p.Key)).Select(p => p.Package).ToList();
var deleted = deletedPackages.Select(dp => $"{dp.Identifier}:{dp.Version}").ToArray();
db.RemoveRange(deletedPackages);
db.SaveChanges();
return(new IndexResult
{
Added = added.Select(p => $"{p.Metadata.Id}:{p.Metadata.Version}").ToArray(),
Updated = updated.Select(p => $"{p.Metadata.Id}:{p.Metadata.Version}").ToArray(),
Deleted = deleted
});
}
