public ICondition Or(ICondition conditionExpression)
{
ConditionExpressionCollection cs = new ConditionExpressionCollection();
cs.ConditionRelation = ConditionRelation.Or;
cs.Add(this);
if (conditionExpression is IConditionExpression)
{
cs.Add(conditionExpression);
}
else
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)conditionExpression;
if (conditionCollection.ConditionRelation == ConditionRelation.Or)
{
foreach (ICondition item in conditionCollection)
{
cs.Add(item);
}
}
else
{
cs.Add(conditionCollection);
}
}
return(cs);
}
public int Delete(object entity)
{
object entityType = MappingProvider.GetEntityTypeByInstance(entity);
ConditionExpressionCollection cs = CreateConditionByKeyColumn(entity);
return(SqlProvider.Delete(this, MappingProvider, null, entityType, cs));
}
public int Update(object entity, params object[] updateProperties)
{
object entityType = MappingProvider.GetEntityTypeByInstance(entity);
ITable table = MappingProvider.GetTable(entityType);
IDictionary <string, object> nameValues;
if (updateProperties == null || updateProperties.Length == 0)
{
//说明是更新所有列
nameValues = ObjectAccessor.ToPropertySets(MappingProvider, entityType, entity, Util.CollectNames(table.NonPrimaryKeyProperties));
}
else
{
//说明是更新指定列
nameValues = ObjectAccessor.ToPropertySets(MappingProvider, entityType, entity, Util.CollectNames(updateProperties), table.PrimaryProperties);
}
if (nameValues.Count <= 0)
{
return(0);
}
ConditionExpressionCollection cs = CreateConditionByKeyColumn(entity);
return(SqlProvider.Update(this, MappingProvider, null, entityType, cs, nameValues));
}
private IConditionExpressionCollection Copy()
{
ConditionExpressionCollection cs = new ConditionExpressionCollection(Items.Count);
cs.ConditionRelation = ConditionRelation;
foreach (ICondition conditionExpression in this)
{
cs.Add(conditionExpression);
}
return(cs);
}
private ConditionExpressionCollection CreateConditionByKeyColumn(object entity)
{
//if (obj == null) throw ExceptionFactory.EntityNullException("obj");
ConditionExpressionCollection cs = new ConditionExpressionCollection();
object entityType = MappingProvider.GetEntityTypeByInstance(entity);
var table = MappingProvider.GetTable(entityType);
foreach (string property in table.PrimaryProperties)
{
cs.Add(new ConditionExpression(property, ConditionOperator.Equal, ObjectAccessor.Get(entity, property)));
}
return(cs);
}