public virtual void Generate(InternalEntityEntry entry, bool includePrimaryKey = true)
{
var entityEntry = new EntityEntry(entry);
foreach (var property in entry.EntityType.GetValueGeneratingProperties())
{
if (!entry.HasDefaultValue(property) ||
(!includePrimaryKey &&
property.IsPrimaryKey()))
{
continue;
}
var valueGenerator = GetValueGenerator(entry, property);
var generatedValue = valueGenerator.Next(entityEntry);
var temporary = valueGenerator.GeneratesTemporaryValues;
Log(entry, property, generatedValue, temporary);
SetGeneratedValue(
entry,
property,
generatedValue,
temporary);
}
}
public virtual async Task GenerateAsync(
InternalEntityEntry entry,
bool includePrimaryKey = true,
CancellationToken cancellationToken = default)
{
var entityEntry = new EntityEntry(entry);
foreach (var property in entry.EntityType.GetValueGeneratingProperties())
{
if (!entry.HasDefaultValue(property) ||
(!includePrimaryKey &&
property.IsPrimaryKey()))
{
continue;
}
var valueGenerator = GetValueGenerator(entry, property);
var generatedValue = await valueGenerator.NextAsync(entityEntry, cancellationToken)
.ConfigureAwait(false);
var temporary = valueGenerator.GeneratesTemporaryValues;
Log(entry, property, generatedValue, temporary);
SetGeneratedValue(
entry,
property,
generatedValue,
temporary);
}
}
private static IEnumerable <IProperty> FindGeneratingProperties(InternalEntityEntry entry)
{
foreach (var property in ((EntityType)entry.EntityType).GetProperties())
{
if (property.RequiresValueGenerator() && entry.HasDefaultValue(property))
{
yield return(property);
}
}
}
private static IEnumerable <IProperty> FindPropagatingProperties(InternalEntityEntry entry)
{
foreach (var property in ((EntityType)entry.EntityType).GetProperties())
{
if (property.IsForeignKey() && entry.HasDefaultValue(property))
{
yield return(property);
}
}
}
private static IEnumerable <IProperty> FindGeneratingProperties(InternalEntityEntry entry, bool includePKs = true)
{
foreach (var property in ((EntityType)entry.EntityType).GetProperties())
{
if (property.RequiresValueGenerator() &&
entry.HasDefaultValue(property) &&
(includePKs ||
!property.IsPrimaryKey()))
{
yield return(property);
}
}
}
public virtual InternalEntityEntry?Propagate(InternalEntityEntry entry)
{
InternalEntityEntry?chosenPrincipal = null;
foreach (var property in entry.EntityType.GetForeignKeyProperties())
{
if (!entry.HasDefaultValue(property))
{
continue;
}
var principalEntry = _keyPropagator.PropagateValue(entry, property);
if (chosenPrincipal == null)
{
chosenPrincipal = principalEntry;
}
}
return(chosenPrincipal);
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public virtual InternalEntityEntry Propagate(InternalEntityEntry entry)
{
InternalEntityEntry chosenPrincipal = null;
foreach (var property in FindCandidatePropagatingProperties(entry))
{
if (!entry.HasDefaultValue(property))
{
continue;
}
var principalEntry = _keyPropagator.PropagateValue(entry, property);
if (chosenPrincipal == null)
{
chosenPrincipal = principalEntry;
}
}
return(chosenPrincipal);
}