private IEnumerable <DynamicFilterDefinition> FindFiltersForEntitySet(ReadOnlyMetadataCollection <MetadataProperty> metadataProperties)
{
var configuration = metadataProperties.FirstOrDefault(p => p.Name == "Configuration")?.Value;
if (configuration == null)
{
return(new List <DynamicFilterDefinition>());
}
// The "Annotations" property will not exist if this is a navigation property (because configuration
// is a NavigationPropertyConfiguration object not an EntityTypeConfiguration object.
// That happens if we use the entry.Load() command to load a child collection. See issue #71.
var annotations = configuration.GetType().GetProperty("Annotations")?.GetValue(configuration, null) as Dictionary <string, object>;
if (annotations == null)
{
return(new List <DynamicFilterDefinition>());
}
var filterList = annotations.Select(a => a.Value as DynamicFilterDefinition).Where(a => a != null).ToList();
// Note: Prior to the switch to use CSpace (which was done to allow filters on navigation properties),
// we had to remove filters that exist in base EntitySets to this entity to fix issues with
// Table-per-Type inheritance (issue #32). In CSpace none of that is necessary since we are working
// with the actual c# models now (in CSpace) so we always have the correct filters and access to all
// the inherited properties that we need.
return(filterList);
}
private IEnumerable <DynamicFilterDefinition> FindFiltersForEntitySet(ReadOnlyMetadataCollection <MetadataProperty> metadataProperties, bool isMainEntity)
{
var configuration = metadataProperties.FirstOrDefault(p => p.Name == "Configuration")?.Value;
if (configuration == null)
{
return(new List <DynamicFilterDefinition>());
}
// The "Annotations" property will not exist if this is a navigation property (because configuration
// is a NavigationPropertyConfiguration object not an EntityTypeConfiguration object.
// That happens if we use the entry.Load() command to load a child collection. See issue #71.
var annotations = configuration.GetType().GetProperty("Annotations")?.GetValue(configuration, null) as Dictionary <string, object>;
if (annotations == null)
{
return(new List <DynamicFilterDefinition>());
}
var filterList = annotations.Select(a => a.Value as DynamicFilterDefinition)
.Where(a => (a != null) && (isMainEntity || a.Options.ApplyToChildProperties))
.Where(a => isMainEntity || (a.Options.ApplyRecursively || !_AppliedFilters.Contains(a.FilterName)))
.ToList();
// Note: Prior to the switch to use CSpace (which was done to allow filters on navigation properties),
// we had to remove filters that exist in base EntitySets to this entity to fix issues with
// Table-per-Type inheritance (issue #32). In CSpace none of that is necessary since we are working
// with the actual c# models now (in CSpace) so we always have the correct filters and access to all
// the inherited properties that we need.
#if DEBUG_VISITS
System.Diagnostics.Debug.Print(" Found {0} filters for Type {1}; isMainEntity={2}", filterList.Count, metadataProperties.FirstOrDefault(p => p.Name == "Name")?.Value, isMainEntity);
#endif
return(filterList);
}
/// <summary>
/// Example for traversing a model
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TraverseButton_Click(object sender, EventArgs e)
{
const int indent = 20;
ReadOnlyMetadataCollection <NavigationProperty> metadata = EntityFrameworkHelper.GetNavigationProperties <Order, NorthContext>();
var nameParts = metadata.FirstOrDefault().DeclaringType.FullName.Split('.');
Debug.WriteLine($"namespace: {nameParts[0]}");
Debug.WriteLine($" class: {nameParts[1]}");
Debug.WriteLine("");
Debug.WriteLine("navigation model names");
var navigationPropertyNames = metadata.Select(np => np.Name).ToList();
foreach (var name in navigationPropertyNames)
{
Debug.WriteLine($"{name,indent}");
}
Debug.WriteLine("");
Debug.WriteLine("RelationshipType names");
var relationNames = metadata.Select(np => np.RelationshipType.Name).ToList();
foreach (var relationName in relationNames)
{
Debug.WriteLine($"{relationName,indent}");
}
MessageBox.Show("See output window");
}
/// <summary>
/// Get column details
/// </summary>
/// <param name="tableName"></param>
/// <returns></returns>
public List <EntityColumn> GetColumnInformation(string tableName)
{
var list = new List <EntityColumn>();
/*
* Checking FullName differs between code first and edmx
* code first: CodeFirstDatabaseSchema
* edmx: store
*/
var metaData = (
_entityTypesData.Where(entityType => entityType.FullName == $"{EnitityModelName}.{tableName}")
.Select(entityTypesData => entityTypesData.DeclaredProperties)).ToList();
EntityType entityType1 = _entityTypesData.ToList().Where(item => item.Name == tableName).FirstOrDefault();
ReadOnlyMetadataCollection <EdmProperty> props = entityType1.KeyProperties;
foreach (ReadOnlyMetadataCollection <EdmProperty> prop in metaData)
{
foreach (var itemEdmProperty in prop.ToList())
{
bool primaryKey = false;
if (props != null)
{
primaryKey = props.FirstOrDefault(item => item.Name == itemEdmProperty.Name) != null;
}
list.Add(new EntityColumn()
{
Name = itemEdmProperty.Name,
Type = itemEdmProperty.PrimitiveType.ClrEquivalentType,
TypeName = itemEdmProperty.TypeName,
Key = primaryKey
});
}
}
return(list);
}
private IEnumerable<DynamicFilterDefinition> FindFiltersForEntitySet(ReadOnlyMetadataCollection<MetadataProperty> metadataProperties)
{
var configuration = metadataProperties.FirstOrDefault(p => p.Name == "Configuration")?.Value;
if (configuration == null)
return new List<DynamicFilterDefinition>();
// The "Annotations" property will not exist if this is a navigation property (because configuration
// is a NavigationPropertyConfiguration object not an EntityTypeConfiguration object.
// That happens if we use the entry.Load() command to load a child collection. See issue #71.
var annotations = configuration.GetType().GetProperty("Annotations")?.GetValue(configuration, null) as Dictionary<string, object>;
if (annotations == null)
return new List<DynamicFilterDefinition>();
var filterList = annotations.Select(a => a.Value as DynamicFilterDefinition).Where(a => a != null).ToList();
// Note: Prior to the switch to use CSpace (which was done to allow filters on navigation properties),
// we had to remove filters that exist in base EntitySets to this entity to fix issues with
// Table-per-Type inheritance (issue #32). In CSpace none of that is necessary since we are working
// with the actual c# models now (in CSpace) so we always have the correct filters and access to all
// the inherited properties that we need.
return filterList;
}
