public virtual bool Modify(TEntity entity, ISpecification <TEntity> specification)
{
if (this.OnModify != null)
{
OnModify(ref entity, ref specification);
}
DBBuilder condition;
if (specification.Lambda != null)
{
var ids = this.Entities.Where(specification.Lambda).Select(d => d.ID).ToList();
if (ids.Count > 0)
{
condition = DBBuilder.Define().Field(_entityDefinition.Value.TableAttribute.TableName, "ID").In(builder => builder.Value(ids.ToArray()));
}
else
{
condition = new FalseSpec <TEntity>().Sql;
}
}
else
{
condition = specification.Sql;
}
var fieldAndValues = GetFieldAndValue(entity, true, false);
var dbBuilder = condition.IsCommand ? condition : DBBuilder.Update(_entityDefinition.Value.TableAttribute.TableName, fieldAndValues).Where(condition);
var result = this.UnitOfWork.Execute(dbBuilder);
return(result > 0);
}
public FieldSpec(string propertyName, IEnumerable <TProperty> propertyValues)
{
if (propertyValues == null || !propertyValues.Any())
{
var spec = new FalseSpec <TEntity>();
Lambda = spec.Lambda;
Sql = new FalseSpec <TEntity>().Sql;
}
else if (propertyValues.Count() == 1)
{
var prop = typeof(TEntity).GetProperty(propertyName);
var entity = Expression.Parameter(typeof(TEntity), "entity");
var left = Expression.Constant(propertyValues.First());
var right = IsNullableType(prop.PropertyType) ? Expression.Property(Expression.Property(entity, prop), "Value") : Expression.Property(entity, prop);
var exp = Expression.Equal(left, right);
Lambda = Expression.Lambda <Func <TEntity, bool> >(exp, entity);
//Sql = DBBuilder.Define().Field(DataEntityUtils.Entity(typeof(TEntity)).TableAttribute.TableName, propertyName).Eq().Value(propertyValues.First());
Sql = DBBuilder.Define().Field(null, propertyName).Eq().Value(propertyValues.First());
}
else
{
var prop = typeof(TEntity).GetProperty(propertyName);
var entity = Expression.Parameter(typeof(TEntity), "entity");
var left = Expression.Constant(propertyValues.ToList());
var right = IsNullableType(prop.PropertyType) ? Expression.Property(Expression.Property(entity, prop), "Value") : Expression.Property(entity, prop);
var exp = Expression.Call(left, "Contains", null, right);
Lambda = Expression.Lambda <Func <TEntity, bool> >(exp, entity);
//Sql = DBBuilder.Define().Field(DataEntityUtils.Entity(typeof(TEntity)).TableAttribute.TableName, propertyName).In(d => d.Value(propertyValues));
Sql = DBBuilder.Define().Field(null, propertyName).In(d => d.Value(propertyValues));
}
}
