public virtual SqlFieldInfo VisitField <TEntity, TProperty>(Expression <Func <TEntity, TProperty> > exp)
where TEntity : class, new()
{
var ret = new SqlFieldInfo();
// Getting table name and schema name
if (exp.Parameters.Count != 1)
{
throw new ArgumentException("Too many parameters in the expression.");
}
//var param = exp.Parameters.Single();
var entities = (IDictionary <string, EntityType>)EntityTypesField.GetValue(context.Model);
var et = entities.Single(x => x.Value.ClrType == typeof(TEntity)).Value;
ret.Table = GetTableName(et);
ret.Schema = GetSchemaName(et);
// Getting field name
var body = exp.Body as MemberExpression;
if (body == null)
{
throw new NotSupportedException(exp.Body.GetType().Name);
}
var columnAttr = body.Member.GetCustomAttribute <ColumnAttribute>();
ret.Column = columnAttr != null ? columnAttr.Name : body.Member.Name;
return(ret);
}
public virtual string ParseField(SqlFieldInfo field)
{
var sb = new StringBuilder();
if (!string.IsNullOrEmpty(field.Table))
{
sb.Append(sqlGenerationHelper.DelimitIdentifier(field.Table))
.Append(".");
}
sb.Append(sqlGenerationHelper.DelimitIdentifier(field.Column));
return(sb.ToString());
}
public virtual SqlFieldInfo VisitField <TEntity, TProperty>(Expression <Func <TEntity, TProperty> > exp)
where TEntity : class
{
var ret = new SqlFieldInfo();
// Getting table name and schema name
if (exp.Parameters.Count != 1)
{
throw new ArgumentException("Too many parameters in the expression.");
}
var param = exp.Parameters.Single();
var et = context.Model.FindEntityType(typeof(TEntity));
ret.Table = GetTableName(et);
ret.Schema = GetSchemaName(et);
// Getting field name
var body = exp.Body as MemberExpression;
if (body == null)
{
throw new NotSupportedException(exp.Body.GetType().Name);
}
var columnAttr = body.Member.GetCustomAttribute <ColumnAttribute>();
if (columnAttr != null)
{
ret.Column = columnAttr.Name;
}
else
{
ret.Column = et.FindProperty(body.Member.Name).GetColumnName();
}
return(ret);
}
public virtual string ParseShortTable(SqlFieldInfo field)
{
return(sqlGenerationHelper.DelimitIdentifier(field.Table));
}
