private async Task SaveSeedingAsync(Seeding seeding, DbConnection connection)
{
using var command = connection.CreateCommand();
command.Connection = connection;
command.CommandText = "Insert Into scope_info_seeding(ClientScopeId, TableName, SchemaName, Seed, Step) Values(@ClientScopeId, @TableName, @SchemaName, @Seed, @Step)";
var p = command.CreateParameter();
p.ParameterName = "@ClientScopeId";
p.DbType = DbType.Guid;
p.Value = seeding.ClientScopeId;
command.Parameters.Add(p);
p = command.CreateParameter();
p.ParameterName = "@TableName";
p.DbType = DbType.String;
p.Value = seeding.TableName;
command.Parameters.Add(p);
p = command.CreateParameter();
p.ParameterName = "@SchemaName";
p.DbType = DbType.String;
p.Value = seeding.SchemaName;
command.Parameters.Add(p);
p = command.CreateParameter();
p.ParameterName = "@Seed";
p.DbType = DbType.Int32;
p.Value = seeding.Seed;
command.Parameters.Add(p);
p = command.CreateParameter();
p.ParameterName = "@Step";
p.DbType = DbType.Int32;
p.Value = seeding.Step;
command.Parameters.Add(p);
connection.Open();
await command.ExecuteNonQueryAsync().ConfigureAwait(false);
connection.Close();
}
private async Task <Seeding> EnsureSeedingAsync(Guid scopeId, string tableName, string schemaName, DbConnection connection)
{
int seed;
// Customer
var seeding = new Seeding
{
ClientScopeId = scopeId,
SchemaName = schemaName,
TableName = tableName,
Step = MAX_CLIENTS_COUNT
};
using (var command = connection.CreateCommand())
{
command.Connection = connection;
command.CommandText = "Select Max(Seed) from scope_info_seeding where TableName=@TableName and SchemaName=@SchemaName";
var p = command.CreateParameter();
p.ParameterName = "@TableName";
p.Value = tableName;
command.Parameters.Add(p);
p = command.CreateParameter();
p.ParameterName = "@SchemaName";
p.Value = schemaName;
command.Parameters.Add(p);
connection.Open();
var seedResponse = await command.ExecuteScalarAsync();
seed = seedResponse == DBNull.Value ? 0 : Convert.ToInt32(seedResponse);
connection.Close();
}
// first client for this table will start its seeding to 10
// otherwise increment seed
seeding.Seed = seed <= 0 ? FIRST_CLIENT_SEED : seed++;
await SaveSeedingAsync(seeding, connection);
return(seeding);
}
public async Task <List <Seeding> > GetSeedingsAsync(Guid scopeId, DbConnection connection)
{
var lstSeeding = new List <Seeding>();
using (var command = connection.CreateCommand())
{
command.Connection = connection;
command.CommandText = "Select * from scope_info_seeding where ClientScopeId = @scopeId";
var p = command.CreateParameter();
p.ParameterName = "@scopeId";
p.Value = scopeId;
command.Parameters.Add(p);
connection.Open();
using var dr = await command.ExecuteReaderAsync();
while (dr.Read())
{
Seeding seeding = new Seeding();
seeding.ClientScopeId = (Guid)dr["ClientScopeId"];
seeding.SchemaName = dr["SchemaName"] as string;
seeding.TableName = dr["TableName"] as string;
seeding.Step = (int)dr["Step"];
seeding.Seed = (int)dr["Seed"];
lstSeeding.Add(seeding);
}
dr.Close();
connection.Close();
}
var customerSeeding = lstSeeding.FirstOrDefault(s => s.TableName == "Customer" && s.SchemaName == "dbo");
if (customerSeeding == null)
{
customerSeeding = await EnsureSeedingAsync(scopeId, "Customer", "dbo", connection);
lstSeeding.Add(customerSeeding);
}
var customerAddressSeeding = lstSeeding.FirstOrDefault(s => s.TableName == "CustomerAddress" && s.SchemaName == "dbo");
if (customerAddressSeeding == null)
{
customerAddressSeeding = await EnsureSeedingAsync(scopeId, "CustomerAddress", "dbo", connection);
lstSeeding.Add(customerAddressSeeding);
}
var addressSeeding = lstSeeding.FirstOrDefault(s => s.TableName == "Address" && s.SchemaName == "dbo");
if (addressSeeding == null)
{
addressSeeding = await EnsureSeedingAsync(scopeId, "Address", "dbo", connection);
lstSeeding.Add(addressSeeding);
}
return(lstSeeding);
}