public int Upsert(ISqlConnectionProvider connectionProvider, string fr8AccountId, MtObject newObject, AstNode @where)
{
if (where == null)
{
_mtObjects.Add(newObject);
return(1);
}
int changed = 0;
for (int index = 0; index < _mtObjects.Count; index++)
{
var obj = _mtObjects[index];
var eval = new AstEvaluator(obj, _converter);
if (eval.Evaluate(@where))
{
_mtObjects[index] = newObject;
changed++;
}
}
if (changed == 0)
{
_mtObjects.Add(newObject);
}
return(changed);
}
public IEnumerable <MtObject> Query(ISqlConnectionProvider connectionProvider, string fr8AccountId, MtTypeDefinition type, AstNode @where)
{
for (int index = 0; index < _mtObjects.Count; index++)
{
var obj = _mtObjects[index];
var eval = new AstEvaluator(obj, _converter);
if (eval.Evaluate(@where))
{
yield return(obj);
}
}
}
public int Delete(ISqlConnectionProvider connectionProvider, string fr8AccountId, MtTypeDefinition type, AstNode @where)
{
int changed = 0;
for (int index = _mtObjects.Count - 1; index >= 0; index--)
{
var obj = _mtObjects[index];
var eval = new AstEvaluator(obj, _converter);
if (eval.Evaluate(@where))
{
_mtObjects.RemoveAt(index);
}
}
return(changed);
}
public int QueryScalar(ISqlConnectionProvider connectionProvider, string fr8AccountId, MtTypeDefinition type, AstNode @where)
{
int count = 0;
for (int index = 0; index < _mtObjects.Count; index++)
{
var obj = _mtObjects[index];
var eval = new AstEvaluator(obj, _converter);
if (eval.Evaluate(@where))
{
count++;
}
}
return(count);
}
public int Insert(ISqlConnectionProvider connectionProvider, string fr8AccountId, MtObject newObject, AstNode uniqueConstraint)
{
if (uniqueConstraint != null)
{
foreach (var obj in _mtObjects)
{
var eval = new AstEvaluator(obj, _converter);
if (eval.Evaluate(uniqueConstraint))
{
throw new Exception("Object already exists");
}
}
}
_mtObjects.Add(newObject);
return(1);
}
