public int Execute()
{
int i = 0;
DataParameter dp;
StringBuilder wheres = new StringBuilder();
KeyValuePair <string, FieldInfo>[] pks = TDbTable <T> .PrimaryKeys;
List <DataParameter> list = new List <DataParameter>(pks.Length);
foreach (KeyValuePair <string, FieldInfo> key in pks)
{
if (i++ > 0)
{
wheres.Append(" AND ");
}
wheres.Append(_query.Provider.EscapeName(key.Key));
wheres.Append('=');
dp = _query.BuildParameter(key.Value.GetValue(_instance));
wheres.Append(dp.GetParameterName());
list.Add(dp);
}
StringBuilder sb = new StringBuilder();
sb.Append("DELETE FROM ");
sb.Append(_query.Provider.EscapeName(DbTable.GetTableName <T>()));
sb.Append(" WHERE ");
sb.Append(wheres.ToString());
sb.Append(';');
return(_query.DataSource.ExecuteNonQuery(sb.ToString(), list.ToArray()));
}
public bool Execute()
{
int i = 0;
DataParameter dp;
StringBuilder names = new StringBuilder();
StringBuilder values = new StringBuilder();
KeyValuePair <FieldInfo, DataColumnAttribute> pair;
Dictionary <string, KeyValuePair <FieldInfo, DataColumnAttribute> > fields = TAllNameGetAttFields <T, DataColumnAttribute> .Fields;
List <DataParameter> list = new List <DataParameter>(fields.Count);
foreach (string key in fields.Keys)
{
pair = fields[key];
if (pair.Value == null || !pair.Value.IsIdentity)
{
if (i++ > 0)
{
names.Append(',');
values.Append(',');
}
names.Append(_query.Provider.EscapeName(key));
dp = _query.BuildParameter(pair.Key.GetValue(_instance));
values.Append(dp.GetParameterName());
list.Add(dp);
}
}
string id = null;
KeyValuePair <string, bool>[] pks = TDbTable <T> .IdentityKeyEx;
if (pks.Length == 1)
{
KeyValuePair <string, bool> kvp = pks[0];
if (kvp.Value)
{
id = kvp.Key;
}
}
StringBuilder sb = new StringBuilder();
sb.Append("INSERT INTO ");
sb.Append(_query.Provider.EscapeName(DbTable.GetTableName <T>()));
sb.Append(" (");
sb.Append(names.ToString());
sb.Append(") VALUES (");
sb.Append(values.ToString());
sb.Append(')');
sb.Append(_query.Provider.GetInsertSqlEnd(id));
sb.Append(';');
return(DbTable.InsertImpl(_query.DataSource, sb.ToString(), _instance, list.ToArray()));
}
public int Execute()
{
int i = 0;
DataParameter dp;
StringBuilder sets = new StringBuilder();
StringBuilder wheres = new StringBuilder();
Dictionary <string, KeyValuePair <FieldInfo, DataColumnAttribute> > fields = TAllNameGetAttFields <T, DataColumnAttribute> .Fields;
List <DataParameter> list = new List <DataParameter>(fields.Count);
if (_columns == null)
{
foreach (KeyValuePair <string, KeyValuePair <FieldInfo, DataColumnAttribute> > field in fields)
{
if (field.Value.Value == null || (!field.Value.Value.IsPrimaryKey && !field.Value.Value.IsIdentity))
{
if (i++ > 0)
{
sets.Append(',');
}
sets.Append(_query.Provider.EscapeName(field.Key));
sets.Append('=');
dp = _query.BuildParameter(field.Value.Key.GetValue(_instance));
sets.Append(dp.GetParameterName());
list.Add(dp);
}
}
}
else
{
if (_mode == ColumnMode.Include)
{
KeyValuePair <FieldInfo, DataColumnAttribute> pair;
foreach (DbColumn column in _columns)
{
if (fields.TryGetValue(column.Column, out pair))
{
if (pair.Value == null || (!pair.Value.IsPrimaryKey && !pair.Value.IsIdentity))
{
if (i++ > 0)
{
sets.Append(',');
}
sets.Append(column.Build(_query.DataSource));
sets.Append('=');
dp = _query.BuildParameter(pair.Key.GetValue(_instance));
sets.Append(dp.GetParameterName());
list.Add(dp);
}
}
else
{
throw new ArgumentException(string.Concat("column \"", column.Column, "\" is not in data table \"", DbTable.GetTableName <T>(), "\""));
}
}
}
else
{
Dictionary <string, KeyValuePair <FieldInfo, DataColumnAttribute> > keys = new Dictionary <string, KeyValuePair <FieldInfo, DataColumnAttribute> >(fields);
foreach (DbColumn column in _columns)
{
keys.Remove(column.Column);
}
foreach (KeyValuePair <string, KeyValuePair <FieldInfo, DataColumnAttribute> > field in fields)
{
if (field.Value.Value == null || (!field.Value.Value.IsPrimaryKey && !field.Value.Value.IsIdentity))
{
if (i++ > 0)
{
sets.Append(',');
}
sets.Append(_query.Provider.EscapeName(field.Key));
sets.Append('=');
dp = _query.BuildParameter(field.Value.Key.GetValue(_instance));
sets.Append(dp.GetParameterName());
list.Add(dp);
}
}
}
}
i = 0;
KeyValuePair <string, FieldInfo>[] pks = TDbTable <T> .PrimaryKeys;
foreach (KeyValuePair <string, FieldInfo> key in pks)
{
if (i++ > 0)
{
wheres.Append(" AND ");
}
wheres.Append(_query.Provider.EscapeName(key.Key));
wheres.Append('=');
dp = _query.BuildParameter(key.Value.GetValue(_instance));
wheres.Append(dp.GetParameterName());
list.Add(dp);
}
StringBuilder sb = new StringBuilder();
sb.Append("UPDATE ");
sb.Append(_query.Provider.EscapeName(DbTable.GetTableName <T>()));
sb.Append(" SET ");
sb.Append(sets.ToString());
sb.Append(" WHERE ");
sb.Append(wheres.ToString());
sb.Append(';');
return(_query.DataSource.ExecuteNonQuery(sb.ToString(), list.ToArray()));
}
private DataParameter GetParameter(DataSource ds, object value)
{
return(DbQuery.BuildParameter(ds, value));
}
