protected virtual string GetSqlForDelete(ExecuteTask <EntityType> task)
{
var query = new StringBuilder();
query.Append(string.Format(deleteTemplate
, TableName
, TableAlias));
query.Append(Environment.NewLine);
if (task.Joins.Count > 0)
{
query.Append(_joinBuilder.BuildJoins(task.Joins));
query.Append(Environment.NewLine);
}
if (task.Queries.Count < 1)
{
throw new InvalidOperationException("Delete statement must contain a where clause");
}
query.Append(_queryBuilder.BuildQueryElements(task.Queries, task.Index));
query.Append(Environment.NewLine);
return(query.ToString());
}
protected virtual string GetSqlForUpdate(ExecuteTask <EntityType> task)
{
var query = new StringBuilder();
query.Append(string.Format(updateTemplate
, TableName
, TableAlias
, BuildSetParamaters(task)));
query.Append(Environment.NewLine);
if (task.Joins.Count > 0)
{
query.Append(BuildJoins(task.Joins));
query.Append(Environment.NewLine);
}
if (task.Queries.Count > 0)
{
query.Append(BuildQueryElements(task.Queries, task.Index));
query.Append(Environment.NewLine);
}
query.Append(Environment.NewLine);
return(query.ToString());
}
protected virtual string GetSqlForInsert(ExecuteTask <EntityType> task)
{
var names = ColumnNames.Where(s => s.Value != IdColumn).Select(s => s.Value);
var query = new StringBuilder();
if (names.Count() > 0)
{
query.Append(string.Format(insertTemplate
, TableName
, "[" + String.Join("], [", names.ToArray()).Replace("_spc_", " ") + "]"
, IdColumn
, BuildInsertParameters(task.Index)));
}
else
{
query.Append(string.Format(insertNoFieldsTemplate
, TableName
, IdColumn));
}
query.Append(Environment.NewLine);
return(query.ToString());
}
//public IEntityWriter<IdType, EntityType> Where(QueryElement query)
//{
// if (_tasks.Count != 1)
// throw new InvalidOperationException("There was no current operation which to append this query");
// _tasks[0].Queries.Add(query);
// return this;
//}
public IEntityWriter <IdType, EntityType> Run(string script, IDictionary <string, object> parms)
{
var task = new ExecuteTask <EntityType>(_tasks.Count)
{
TaskType = ActionType.None,
Script = script,
Params = parms
};
_tasks.Add(task);
return(this);
}
public IEntityWriter <IdType, EntityType> DeleteByQuery(IList <QueryElement> queries)
{
var task = new ExecuteTask <EntityType>(_tasks.Count)
{
TaskType = ActionType.Remove
};
foreach (var q in queries)
{
task.Queries.Add(q);
}
_tasks.Add(task);
return(this);
}
protected virtual object BuildSetParamaters(ExecuteTask <EntityType> task)
{
int count = 0;
var fieldSets = ColumnNames
.Except(ColumnNames.Where(c => c.Value == IdColumn))
.OrderBy(f => f.Value)
.Select(field =>
string.Format
(setTemplate
, field.Value.Replace("_spc_", " ")
, GetParamName(field.Value, "u", task.Index, ref count)));
var s = string.Join(", ", fieldSets);
return("set " + s.TrimEnd(',', ' '));
}
public IEntityWriter <IdType, EntityType> Delete(IList <IdType> ids)
{
var task = new ExecuteTask <EntityType>(_tasks.Count)
{
TaskType = ActionType.Remove
};
task.Queries.Add(new QueryElement()
{
FieldName = IdColumn,
Operator = Operator.In,
TableAlias = TableAlias,
ValueArray = ids.Cast <object>().ToArray()
});
_tasks.Add(task);
return(this);
}
public IEntityWriter <IdType, EntityType> Delete(EntityType entity)
{
var task = new ExecuteTask <EntityType>(_tasks.Count)
{
TaskType = ActionType.Remove,
Entity = entity
};
task.Queries.Add(new QueryElement()
{
FieldName = IdColumn,
Operator = Operator.Equals,
TableAlias = TableAlias,
Value = entity.Id
});
_tasks.Add(task);
return(this);
}
public IEntityWriter <IdType, EntityType> Update(IList <EntityType> entities)
{
foreach (var entity in entities)
{
var task = new ExecuteTask <EntityType>(_tasks.Count)
{
TaskType = ActionType.Update,
Entity = entity,
};
task.Queries.Add(
new QueryElement()
{
FieldName = IdColumn,
Operator = Operator.Equals,
Value = entity.Id,
TableAlias = TableAlias.ToString()
});
_tasks.Add(task);
}
return(this);
}
