public override void InitByDataLink(DataLink link)
{
base.InitByDataLink(link);
var hasher = System.Security.Cryptography.MD5.Create();
var hashdata = hasher.ComputeHash(System.Text.Encoding.Default.GetBytes($"procedure_unjoin_{TriggerKey}"));
ProcedureName = string.Concat(hashdata.Select(b => b.ToString("x2")).ToArray());
Chain = new Chain(RootType, BasePrefix);
GenerateCreateObjectTrigger = link.CreateObject;
foreach (var p in link.DataLinkParameter.Cast <DataLinkParameter>().Where(p => !p.LinkField))
{
if (!string.IsNullOrEmpty(p.ObjectField) && string.IsNullOrEmpty(p.Expression))
{
Chain.Add(p.ObjectField);
if (!SimpleFields.ContainsKey(p.LayerField))
{
SimpleFields.Add(p.LayerField, p.ObjectField);
}
}
else
{
var expressionField = new MapExpressionField(RootType, p.LayerField, p.Expression);
ExpressionFields.Add(expressionField);
foreach (var path in expressionField.Paths)
{
Chain.Add(path);
}
}
}
}
/// <summary>
/// </summary>
public MapExpressionField(Type type, string field, string sqlExpression, string prefix = "") : base(type, prefix)
{
LayerField = field;
Expression = sqlExpression;
Paths = new List <string>();
var fields = new List <string>();
var match = Regex.Match(Expression, @"@\b(\w+\.{0,1})+\b@");
while (match.Success)
{
if (!fields.Contains(match.Value))
{
fields.Add(match.Value);
}
match = match.NextMatch();
}
fields.Sort((a, b) => b.Length.CompareTo(a.Length));
foreach (var path in fields)
{
Chain.Add(path.Trim('@'));
Paths.Add(path.Trim('@'));
}
}
public void Add(string layerField, string objectPath)
{
Chain.Add(objectPath);
if (!LayerObjectFields.ContainsKey(layerField))
{
LayerObjectFields.Add(layerField, objectPath);
}
else
{
throw new Exception();
}
}
