private GradientNode(string name, Expression min, Expression max, OnConflict onConflict, StopNode[] stops)
{
Name = name;
Min = min;
Max = max;
OnConflict = onConflict;
Stops = stops;
}
private GradientNode(string name, Expression min, Expression max, OnConflict onConflict, StopNode[] stops)
{
Name = name;
Min = min;
Max = max;
OnConflict = onConflict;
Stops = stops;
}
public virtual Task Upsert(TEntity entity, OnConflict onConflict)
{
var queryParams = new Dictionary <string, object>();
var query = QueryBuilder.Upsert(entity, onConflict, queryParams);
Logger.LogInformation("Executing query: {@Query}", new { Method = nameof(Upsert), Query = query, Params = queryParams });
return(Connection
.ExecuteAsync(
query,
queryParams,
Transaction));
}
protected virtual string GetUpsertStatement(PropertyColumnMap mapping, OnConflict onConflict, QueryParameters queryParameters)
{
var insertColumnExpressions = GetInsertStatement(mapping, queryParameters);
var updateColumnsMapping = ExcludeColumnsForUpdate(mapping);
var updateColumnExpressions = GetColumnValueList(
GetColumnParameterMap(updateColumnsMapping, queryParameters)
.ToDictionary(x => x.Key, x => $"EXCLUDED.{x.Key}"), insert: false);
var keyColumn = Schema.Columns.Mapping[Schema.Columns.KeyProperty].ColumnName;
var sql = insertColumnExpressions;
var onConflictExpression = $"ON CONFLICT({ keyColumn })";
switch (onConflict)
{
case OnConflict.Update:
sql += $@"
{ onConflictExpression }
DO UPDATE
SET
{ updateColumnExpressions }
";
break;
case OnConflict.DoNothing:
sql += $@"
{ onConflictExpression }
DO NOTHING";
break;
default:
break;
}
return(FormatSqlStatement(sql));
}
/// <summary>
/// Inserts multiple values into a table efficiently using a transaction
/// </summary>
/// <typeparam name="T">Value type</typeparam>
/// <param name="connection">The connection to be used</param>
/// <param name="items">Items to be inserted</param>
/// <param name="resolution">Conflict resolution policy</param>
/// <param name="tableName">The name of the table, NULL to use `T` type name as the name of the table</param>
/// <returns>Returns the integer Primary Key or __ROWID__ of the inserted rows</returns>
public static long[] BulkInsert <T>(this ISqliteConnection connection, IEnumerable <T> items, OnConflict resolution = OnConflict.Abort, string tableName = null)
{
List <long> ids = new List <long>();
string sql = HelperFunctions.buildInsertSql <T>(connection.typeCollection, resolution, tableName);
using var trn = connection.connection.BeginTransaction();
using var cmd = new SqliteCommand(sql, connection.connection, trn);
foreach (var item in items)
{
cmd.Parameters.Clear();
HelperFunctions.fillParameters(cmd, item, connection.typeCollection);
var scalar = cmd.ExecuteScalar();
if (scalar is long sL)
{
ids.Add(sL);
}
}
trn.Commit();
return(ids.ToArray());
}
/// <summary> /// Inserts a value into a table /// </summary> /// <typeparam name="T">Value type</typeparam> /// <param name="connection">The connection to be used</param> /// <param name="item">Item to be inserted</param> /// <param name="resolution">Conflict resolution policy</param> /// <param name="tableName">The name of the table, NULL to use `T` type name as the name of the table</param> /// <returns>Returns the integer Primary Key or __ROWID__ of the inserted row</returns> public static long Insert <T>(this ISqliteConnection connection, T item, OnConflict resolution = OnConflict.Abort, string tableName = null) => connection.ExecuteScalar <long>(HelperFunctions.buildInsertSql <T>(connection.typeCollection, resolution, tableName), item);
internal static string buildInsertSql <T>(ReaderCachedCollection typeCollection, OnConflict resolution, string tableName = null)
{
var info = typeCollection.GetInfo <T>();
if (tableName == null)
{
tableName = info.TypeName;
}
var names = getNames(info, !info.IsAnonymousType);
var fields = string.Join(",", names);
var values = string.Join(",", names.Select(n => $"@{n}"));
if (resolution == OnConflict.Abort)
{
return($"INSERT INTO {tableName} ({fields}) VALUES ({values}); SELECT last_insert_rowid();");
}
else
{
string txtConflict = resolution switch
{
OnConflict.RollBack => "ROLLBACK",
OnConflict.Fail => "FAIL",
OnConflict.Ignore => "IGNORE",
OnConflict.Replace => "REPLACE",
_ => throw new ArgumentException($"Invalid resolution: {resolution}"),
};
return($"INSERT OR {txtConflict} INTO {tableName} ({fields}) VALUES ({values}); SELECT last_insert_rowid();");
}
}
public virtual string Upsert(TEntity entity, OnConflict onConflict, QueryParameters queryParams)
{
ExtractValues(entity, queryParams);
return(GetUpsertStatement(Schema.Columns.Mapping, onConflict));
}
public Insert OnConflict(OnConflict onConflict)
{
_onConflict = onConflict;
_onConflict.Values(_valueClauses);
return(this);
}