internal SelectQuery GetSelectViewModel(Type type,
QueryConditions tableConditions = null,
FilterRequest filter = null)
{
var reflectionHelper = new TablesReflectionHelper();
var root = reflectionHelper.GetReflectionTable(type);
var query = CreateFullSelectQuery(root, tableConditions, filter);
return(query);
}
internal string GetAbstractQuery(Type type,
string whereTerm = null,
FilterRequest filter = null)
{
var reflectionHelper = new TablesReflectionHelper();
var node = reflectionHelper.GetReflectionTable(type);
var result = new AbstractQuery()
{
SelectTerm = GetSelectTerm($"[{node.TableName}].[{node.PrimaryKey.Name}]", node.TableName, node.Cols),
Root = node,
WhereTerm = whereTerm
};
(result.WhereTerm, result.OrderByTerm) =
GetOrderByTerm(result.WhereTerm, filter, node.TableName, node.Cols);
node.UniqName = node.TableName;
var que = new Queue <SelectStackItem>();
if (node.JoinTables != null)
{
foreach (var joinTable in node.JoinTables
.Where(q => q.SelectedForAbstract))
{
if (!joinTable.IsOneToMany && !joinTable.IsInverse)
{
que.Enqueue(new SelectStackItem()
{
Table = joinTable,
ParentUniqName = node.UniqName
});
}
}
while (que.Any())
{
var item = que.Dequeue();
node = item.Table.ReflectionTable;
// سلمت
result.SelectTerm = GetSelectTerm(result.SelectTerm, node.UniqName,
node.Cols);
// جوین ها
result.JoinTerm += Environment.NewLine +
$" left join [{node.TableName}] as {node.UniqName} " +
$"on [{item.ParentUniqName}].[{item.Table.ForeignKey}] = [{node.UniqName}].{node.PrimaryKey.Name} ";
// فیلتر
if (filter != null && string.IsNullOrEmpty(result.OrderByTerm))
{
(result.WhereTerm, result.OrderByTerm) =
GetOrderByTerm(result.WhereTerm, filter, node.UniqName, node.Cols);
}
// زیر مجموعه
if (node.JoinTables != null)
{
foreach (var joinTable in node.JoinTables
.Where(q => q.SelectedForAbstract))
{
if (!joinTable.IsOneToMany && !joinTable.IsInverse)
{
que.Enqueue(new SelectStackItem()
{
Table = joinTable,
ParentUniqName = node.UniqName
});
}
}
}
}
}
if (!string.IsNullOrEmpty(result.WhereTerm))
{
result.WhereTerm = "Where " + result.WhereTerm;
}
var nodeQuery = $@"select {result.SelectTerm}
from [{result.Root.TableName}]
{result.JoinTerm}
{result.WhereTerm}
{result.OrderByTerm}";
nodeQuery += Environment.NewLine;
return(nodeQuery);
}
