/// <summary>
/// Updates the doc, Returns the row index or -1
/// </summary>
public UpdateResult Update(Doc doc, Access.IDataStoreKey key = null, Func <Doc, Doc, Doc> docUpgrade = null)
{
Check(doc);
var idx = DoUpdate(doc, key, docUpgrade);
if (idx >= 0 && m_Changes != null)
{
m_Changes.Add(new DocChange(DocChangeType.Update, doc, key));
}
return(new UpdateResult(idx, true));
}
/// <summary>
/// Tries to find a row with the same set of key fields in this table and if found, deletes it and returns its index, otherwise -1
/// </summary>
public int Delete(Doc doc, Access.IDataStoreKey key = null)
{
Check(doc);
var idx = DoDelete(doc, key);
if (idx >= 0 && m_Changes != null)
{
m_Changes.Add(new DocChange(DocChangeType.Delete, doc, null));
}
return(idx);
}
/// <summary>
/// Tries to find a row with the same set of key fields in this table and if found, deletes it and returns its index, otherwise -1
/// </summary>
protected virtual int DoDelete(Doc doc, Access.IDataStoreKey key = null)
{
int dummy;
int idx = SearchForDoc(doc, out dummy);
if (idx < 0)
{
return(-1);
}
m_List.RemoveAt(idx);
return(idx);
}
/// <summary>
/// Tries to find a row with the same set of key fields in this table and if found, replaces it and returns its index,
/// otherwise returns -1
/// </summary>
/// <param name="doc">Document instance</param>
/// <param name="key">Primary key</param>
/// <param name="docUpgrade">
/// When not null, is called with old and new instance of the doc to be updated. It returns
/// the doc to be saved. Note that the returned doc must have the same key and schema or else the function will throw.
/// </param>
protected virtual int DoUpdate(Doc doc, Access.IDataStoreKey key = null, Func <Doc, Doc, Doc> docUpgrade = null)
{
int dummy;
var idx = SearchForDoc(doc, out dummy);
if (idx < 0)
{
return(-1);
}
DoUpgrade(dummy, doc, docUpgrade);
return(idx);
}
public DocChange(DocChangeType type, Doc doc, Access.IDataStoreKey key)
{
ChangeType = type;
Doc = doc;
Key = key;
}
