public IEnumerable <FluidityEntityDisplayModel> GetEntityDisplayModelsByIds(FluiditySectionConfig section, FluidityCollectionConfig collection, object[] ids)
{
// Get the entities
var entities = GetEntitiesByIds(section, collection, ids);
if (entities == null)
{
return(null);
}
// Map the results to the view display
var mapper = new FluidityEntityMapper();
return(entities.Select(x => mapper.ToDisplayModel(section, collection, x)));
}
public PagedResult <FluidityEntityDisplayModel> GetEntityDisplayModels(FluiditySectionConfig section, FluidityCollectionConfig collection, int pageNumber = 1, int pageSize = 10, string query = null, string orderBy = null, string orderDirection = null, string dataView = null)
{
// Construct where clause
LambdaExpression whereClauseExp = null;
// Determine the data view where clause
if (!dataView.IsNullOrWhiteSpace())
{
var wc = collection.ListView?.DataViewsBuilder?.GetDataViewWhereClause(dataView);
if (wc != null)
{
whereClauseExp = wc;
}
}
// Construct a query where clause (and combind with the data view where clause if one exists)
if (!query.IsNullOrWhiteSpace() && collection.ListView != null && collection.SearchableProperties.Any())
{
LambdaExpression queryExpression = null;
// Create shared expressions
var parameter = whereClauseExp != null
? whereClauseExp.Parameters.First()
: Expression.Parameter(collection.EntityType);
var queryConstantExpression = Expression.Constant(query, typeof(string));
// Loop through searchable fields
foreach (var searchProp in collection.SearchableProperties)
{
// Create field starts with expression
var property = Expression.Property(parameter, searchProp.PropertyInfo);
var startsWithCall = Expression.Call(property, "StartsWith", null, queryConstantExpression);
var lambda = Expression.Lambda(startsWithCall, parameter);
// Combine query
queryExpression = queryExpression == null
? lambda
: Expression.Lambda(Expression.OrElse(queryExpression.Body, lambda.Body), parameter);
}
// Combine query with any existing where clause
if (queryExpression != null)
{
whereClauseExp = whereClauseExp == null
? queryExpression
: Expression.Lambda(Expression.AndAlso(whereClauseExp.Body, queryExpression.Body), parameter);
}
}
// Parse the order by
LambdaExpression orderByExp = null;
if (!orderBy.IsNullOrWhiteSpace() && !orderBy.InvariantEquals("name"))
{
// Convert string into an Expression<Func<TEntityType, object>>
var prop = collection.EntityType.GetProperty(orderBy);
if (prop != null)
{
var parameter = Expression.Parameter(collection.EntityType);
var property = Expression.Property(parameter, prop);
var castToObject = Expression.Convert(property, typeof(object));
orderByExp = Expression.Lambda(castToObject, parameter);
}
}
var orderDir = !orderDirection.IsNullOrWhiteSpace()
? orderDirection.InvariantEquals("asc") ? SortDirection.Ascending : SortDirection.Descending
: collection.SortDirection;
PagedResult <object> result;
using (var repo = RepositoryFactory.GetRepository(collection))
{
// Perform the query
result = repo?.GetPaged(pageNumber, pageSize, whereClauseExp, orderByExp, orderDir);
}
// If we've got no results, return an empty result set
if (result == null)
{
return(new PagedResult <FluidityEntityDisplayModel>(0, pageNumber, pageSize));
}
// Map the results to the view display
var mapper = new FluidityEntityMapper();
return(new PagedResult <FluidityEntityDisplayModel>(result.TotalItems, pageNumber, pageSize)
{
Items = result.Items.Select(x => mapper.ToDisplayModel(section, collection, x))
});
}
