public void SqlQueryTest()
{
var tableExp = new TableExp
{
Name = "Person",
Exp = new GroupExp
{
Op = LogicalOp.And,
Children = new List<Exp>
{
new ConditionExp
{
Op = FieldOp.Eq,
Field = new ForeignField
{
Name = "Invitations",
ForeignFieldName = "Id"
},
Value = 1
}
}
}
};
var toSql = Sql.From(tableExp);
}
public static SqlQuery From(TableExp exp)
{
var query = new SqlQuery();
var whereQuery = exp.Exp.ToSql(query);
var select = $"SELECT * FROM {exp.Name}";
var where = exp.Exp.Children.Count > 0
? $"WHERE {whereQuery.Sql}"
: "";
var sql = $"{select} {where}";
return new SqlQuery
{
Sql = sql,
Params = whereQuery.Params
};
}
private static Dictionary<string, object> SerializeTable(TableExp tbl)
{
return new Dictionary<string, object>
{
{"type", 0},
{"tableName", tbl.Name},
{"op", tbl.Exp.Op},
{"children", tbl.Exp.Children.Select(SerializeExpr)}
};
}
public static string Serialize(TableExp tbl)
{
var obj = SerializeExpr(tbl);
return JsonConvert.SerializeObject(obj);
}
public void T1()
{
var c1 = new ConditionExp
{
Field = new Field
{
Name = "Id"
},
Op = FieldOp.Gt,
Value = 1
};
var c2 = new ConditionExp
{
Field = new Field
{
Name = "Name"
},
Op = FieldOp.Contains,
Value = "shai"
};
var c3 = new ConditionExp
{
Field = new ForeignField
{
Name = "Invitations",
ForeignFieldName = "Date"
},
Op = FieldOp.Eq,
Value = DateTime.Now.Date
};
var group = new GroupExp
{
Op = LogicalOp.And,
Children = new List<Exp> { c1, c2, c3 }
};
var tbl = new TableExp
{
Name = "Person",
Exp = group
};
var db = new DB(ConString);
var queryableData = db.Persons.AsQueryable();
var results = queryableData.From(tbl).ToArray();
}
