/// <summary>
/// Marks attribute as foreign key
/// </summary>
/// <param name="attr">Attribute IR object</param>
/// <param name="tableRef">Referred table</param>
/// <param name="keyRef">effered key</param>
private void SetForeignKey(IR.TableAttribute attr, string tableRef, string keyRef)
{
if (attr != null)
{
attr.ForeignKey = true;
attr.ForeignTableRef = tableRef;
attr.ForeignKeyRef = keyRef;
}
}
/// <summary>
/// Marks given attribute of current table as primary key
/// </summary>
/// <param name="attrName">Attribute name</param>
private void SetPrimaryKey(string attrName)
{
IR.TableAttribute attr = FindAttribute(attrName);
if (attr != null)
{
attr.PrimaryKey = true;
}
}
/// <summary>
/// Marks attribute given by name of specified table as foreign key
/// </summary>
/// <param name="table">Table IR object</param>
/// <param name="attrName">Attribute name</param>
/// <param name="tableRef">Referred table</param>
/// <param name="keyRef">Reffered key</param>
private void SetForeignKey(IR.Table table, string attrName, string tableRef, string keyRef)
{
if (table != null)
{
IR.TableAttribute attr = FindAttribute(attrName, table);
if (attr != null)
{
SetForeignKey(attr, tableRef, keyRef);
}
}
}
/// <summary>
/// Creates new IR table attribute representation
/// </summary>
private void CreateAttribute()
{
IR.TableAttribute newAttr = new IR.TableAttribute();
CurrentTable().Attribues.Add(newAttr);
}