public static SqlBuilder Select(this RowData row, string ListName)
{
SqlBuilder builder = row.Metadata.ToSqlBuilder(ListName);
builder.WhereConditions = row.PrimaryKey(builder);
return(builder);
}
public static SqlBuilder Update(this SqlBuilder builder, RowData row, string[] Output = null)
{
if (!row.HasChanges)
{
return(builder);
}
string TableName = row.Table;
string Schema = null;
if (TableName.IndexOf('.') > 0)
{
Schema = TableName.Substring(0, TableName.IndexOf('.'));
TableName = TableName.Substring(TableName.IndexOf('.') + 1);
}
UpdateTable up = builder.Table(TableName, Schema);
Metadata.MetadataTable mt = row.Metadata;
foreach (string key in row.ChangedValues.Keys)
{
MetadataColumn c = mt[key];
SqlStatementExtensions.Set(up, key, row.ChangedValues[key], c.SqlDataType, c.DataType, c.Length, c.Scale);
}
if (Output != null && Output.Length > 0)
{
TableParameterField tpf = up.Output();
foreach (string s in Output)
{
MetadataColumn c = mt[s];
SqlStatementExtensions.Column(tpf, s, c.SqlDataType, c.Length, c.Scale);
}
}
builder.WhereConditions = row.PrimaryKey(builder);
return(builder);
}
public static SqlBuilder Update(this RowData row, bool OnlyChanges = false, bool OutputPrimaryKey = false, string[] OutputFields = null)
{
if (OnlyChanges && !row.HasChanges)
{
return(null);
}
SqlBuilder builder = SqlBuilder.Update();
string TableName = row.Table;
string Schema = null;
if (TableName.IndexOf('.') > 0)
{
Schema = TableName.Substring(0, TableName.IndexOf('.'));
TableName = TableName.Substring(TableName.IndexOf('.') + 1);
}
UpdateTable up = builder.Table(TableName, Schema);
Metadata.MetadataTable mt = row.Metadata;
if (OnlyChanges)
{
foreach (string key in row.ChangedValues.Keys)
{
object o;
MetadataColumn c;
if (row.ChangedValues.TryGetValue(key, out o) && mt.Columns.TryGetValue(key, out c) && !c.IsReadOnly)
{
SqlStatementExtensions.Set(up, key, o, c.SqlDataType, c.DataType, c.Length, c.Precision, c.Scale);
}
else
{
throw new InvalidOperationException("Cannot get the changed column " + key);
}
}
}
else
{
foreach (string key in row.Columns)
{
MetadataColumn c;
if (mt.Columns.TryGetValue(key, out c) && !c.IsReadOnly)
{
SqlStatementExtensions.Set(up, key, row.Column(key), c.SqlDataType, c.DataType, c.Length, c.Precision, c.Scale);
}
}
}
if (OutputPrimaryKey)
{
TableParameterField tpf = up.Output();
foreach (MetadataColumn key in mt.PrimaryKey.Columns)
{
SqlStatementExtensions.Column(tpf, key.Name, key.SqlDataType, key.Length, key.Precision, key.Scale);
}
}
if (OutputFields != null && OutputFields.Length > 0)
{
TableParameterField tpf = up.Output();
foreach (string s in OutputFields)
{
MetadataColumn c = mt[s];
SqlStatementExtensions.Column(tpf, s, c.SqlDataType, c.Length, c.Precision, c.Scale);
}
}
builder.WhereConditions = row.PrimaryKey(builder);
return(builder);
}