/// <summary>
/// 注册需要返回的成员。
/// </summary>
/// <param name="member">指定提交成员。</param>
/// <returns>返回传入成员。</returns>
protected CommitMember ReisterReturnMember(CommitMember member)
{
if (Operate.HasResult)
{
_ReturnMembers.Add(member);
}
return(member);
}
/// <inheritdoc/>
public override void Add(CommitMember member)
{
if (member.Metadata.IsKey)
{
_Keys.Add(member);
}
else
{
base.Add(member);
}
}
private void GenerateForInsertMembers(InsertValueFragment insert, CommitMember member)
{
switch (member.ValueType)
{
case ECommitValueType.Constant:
insert.SetValue(member.Metadata);
break;
case ECommitValueType.Expression:
var exp = (CommitExpressionMember)member;
insert.SetValue(member.Metadata, insert.CreateExpression(exp.Expression));
break;
}
}
private CommitUnitBase CreateMainUnit(TableMetadata metadata, DbExpression content)
{
var identity = metadata.Keys.FirstOrDefault(a
=> a.GeneratedForInsert != null && a.GeneratedForInsert.GeneratedOption == EGeneratedOption.Identity);
if (identity != null)
{
var identityMember = new CommitMember(identity, identity.GeneratedForInsert, ECommitValueType.Database);
var commitUnit = new CommitIdentityUnit(metadata, identityMember);
ReisterReturnMember(identityMember);
CreateCommitUnit(commitUnit, metadata.Members.Where(a => a != identity), content);
HasExpressionKey = commitUnit.Members.Any(a => a.Metadata.IsKey && a.ValueType == ECommitValueType.Expression);
return(commitUnit);
}
else
{
var commitUnit = new CommitKeyUnit(metadata);
CreateCommitUnit(commitUnit, metadata.Members, content);
HasExpressionKey = commitUnit.Keys.Any(a => a.ValueType == ECommitValueType.Expression);
return(commitUnit);
}
}
/// <summary>
/// 添加成员对象。
/// </summary>
/// <param name="member">要添加的成员。</param>
public virtual void Add(CommitMember member)
{
_Members.Add(member);
}
/// <summary>
/// 创建提交单元。
/// </summary>
/// <param name="table">表元数据。</param>
/// <param name="identity">标识列。</param>
public CommitIdentityUnit(TableMetadata table, CommitMember identity)
: base(table)
{
Identity = identity;
}