public ReflectionPropertyViewModel(ClassViewModel effectiveParent, ClassViewModel declaringParent, PropertyInfo propetyInfo)
{
Parent = declaringParent;
EffectiveParent = effectiveParent;
Info = propetyInfo;
Type = new ReflectionTypeViewModel(Info.PropertyType);
}
public SymbolPropertyViewModel(ClassViewModel effectiveParent, ClassViewModel declaringParent, IPropertySymbol symbol)
{
Parent = declaringParent;
EffectiveParent = effectiveParent;
Symbol = symbol;
Type = new SymbolTypeViewModel(Symbol.Type);
}
public static List <ClassViewModel> AddContext(INamedTypeSymbol contextSymbol, string area = "") // where T: AppDbContext
{
var context = new ClassViewModel(contextSymbol, null, null, false);
// Reflect on the AppDbContext
return(AddContext(context, area));
}
public static List <ClassViewModel> AddContext(ClassViewModel context, string area = "")
{
_contextNamespace = context.Namespace;
// Lock so that parallel execution only uses this once at a time.
lock (_lock)
{
var models = new List <ClassViewModel>();
foreach (var prop in context.Properties)
{
if ((prop.Type.IsCollection || prop.IsDbSet) &&
IsValidViewModelClass(prop.PureType.Name) &&
!prop.IsInternalUse)
{
var model = ReflectionRepository.GetClassViewModel(classType: prop.PureType, hasDbSet: prop.IsDbSet);
if (model != null)
{
model.ContextPropertyName = prop.Name;
model.OnContext = true;
model.ContextPropertyName = prop.Name;
models.Add(model);
}
}
}
// Check for other associated types that are not dbsets
foreach (var model in models.ToList())
{
AddChildModels(models, model);
}
return(models);
}
}
/// <summary>
/// Gets a list of properties that should be searched for text.
/// It will first look for any properties that are decorated with the Search attribute.
/// If it doesn't find those, it will look for a property called Name or {Class}Name.
/// If none of those are found, it will result in returning the property that is the primary key for the object
/// </summary>
public IEnumerable <SearchableProperty> SearchProperties(ClassViewModel rootModel = null, int depth = 0, int maxDepth = 2)
{
// Only go down three levels.
if (depth == 3)
{
yield break;
}
var searchProperties = Properties.Where(f => f.IsSearchable(rootModel)).ToList();
if (searchProperties.Count > 0)
{
// Process these items to make sure we have things we can search on.
foreach (var property in searchProperties)
{
// Get all the child items
foreach (var searchProperty in property.SearchProperties(rootModel, depth, maxDepth))
{
yield return(searchProperty);
}
}
yield break;
}
yield return(new[]
{
PropertyByName("Name"),
Properties.FirstOrDefault(p => p.Name == $"{p.Parent.Name}Name"),
PrimaryKey
}
.Where(p => p != null && p.IsClientProperty && p.HasNotMapped == false)
.Select(p => new SearchableValueProperty(p))
.FirstOrDefault());
}
/// <summary>
/// Returns true if this property is marked with the Search attribute.
/// </summary>
public bool IsSearchable(ClassViewModel rootModel)
{
if (!HasAttribute <SearchAttribute>())
{
return(false);
}
var rootModelName = rootModel?.Name;
if (rootModelName == null)
{
return(true);
}
var whitelist = this.GetAttributeValue <SearchAttribute>(a => a.RootWhitelist);
if (!string.IsNullOrWhiteSpace(whitelist))
{
return(whitelist.Split(',').Contains(rootModelName));
}
var blacklist = this.GetAttributeValue <SearchAttribute>(a => a.RootBlacklist);
if (!string.IsNullOrWhiteSpace(blacklist))
{
return(!blacklist.Split(',').Contains(rootModelName));
}
return(true);
}
/// <summary>
/// Returns the fields to search for this object. This could be just the field itself
/// or a number of child fields if this is an object or collection.
/// </summary>
public IEnumerable <SearchableProperty> SearchProperties(ClassViewModel rootModel, int depth = 0, int maxDepth = 2, bool force = false)
{
if (!force && !IsSearchable(rootModel))
{
yield break;
}
if (this.PureType.HasClassViewModel)
{
// If we will exceed the depth don't try to query on an object.
if (depth < maxDepth)
{
// Remove this item and add the child's search items with a prepended property name
var childProperties = this.Type.PureType.ClassViewModel.SearchProperties(rootModel, depth + 1, maxDepth);
if (this.Type.IsCollection)
{
yield return(new SearchableCollectionProperty(this, childProperties));
}
else
{
yield return(new SearchableObjectProperty(this, childProperties));
}
}
}
else
{
yield return(new SearchableValueProperty(this));
}
}
protected override IReadOnlyCollection <PropertyViewModel> RawProperties(ClassViewModel effectiveParent) => Info
.GetProperties()
.Select((p, i) => new ReflectionPropertyViewModel(effectiveParent, new ReflectionTypeViewModel(p.DeclaringType).ClassViewModel, p)
{
ClassFieldOrder = i
})
.Cast <PropertyViewModel>()
.ToList().AsReadOnly();
private void DiscoverNestedCrudStrategiesOn(ClassViewModel model)
{
foreach (var nestedType in model.ClientNestedTypes)
{
AddCrudStrategy(typeof(IDataSource <>), nestedType, _dataSources, model);
AddCrudStrategy(typeof(IBehaviors <>), nestedType, _behaviors, model);
}
}
private void DiscoverExternalPropertyTypesOn(ClassViewModel model)
{
foreach (var type in model
.ClientProperties
.Select(p => p.PureType)
.Where(t => t.HasClassViewModel))
{
ConditionallyAddAndDiscoverExternalPropertyTypesOn(type.ClassViewModel);
}
}
/// <summary>
/// Cache the given model so it can be reused when an instance representing its underlying type is requested.
/// </summary>
/// <param name="classViewModel">The ClassViewModel to cache.</param>
/// <param name="force">
/// True to override any existing object for the underlying type.
/// False to preserve any existing object.
/// </param>
/// <returns>The ClassViewModel that was passed in, for convenience.</returns>
private ClassViewModel Cache(ClassViewModel classViewModel, bool force = false)
{
object key = GetCacheKey(classViewModel);
if (force)
{
_allClassViewModels[key] = classViewModel;
}
else
{
_allClassViewModels.GetOrAdd(key, classViewModel);
}
return(classViewModel);
}
private void DiscoverExternalMethodTypesOn(ClassViewModel model)
{
foreach (var method in model.ClientMethods)
{
var returnType = method.ResultType.PureType;
if (returnType.HasClassViewModel)
{
// Return type looks like an external type.
ConditionallyAddAndDiscoverExternalPropertyTypesOn(returnType.ClassViewModel);
}
foreach (var arg in method.Parameters.Where(p => !p.IsDI && p.Type.HasClassViewModel))
{
// Parameter looks like an external type.
ConditionallyAddAndDiscoverExternalPropertyTypesOn(arg.Type.ClassViewModel);
}
}
}
/// <summary>
/// Attempt to add the given ClassViewModel as an ExternalType if it isn't already known.
/// If its a newly discovered type, recurse into that type's properties as well.
/// </summary>
/// <param name="externalType"></param>
private void ConditionallyAddAndDiscoverExternalPropertyTypesOn(ClassViewModel externalType)
{
// Don't dig in if:
// - This is a known entity type (its not external)
// - This is a known custom DTO type (again, not external)
// - This is already a known external type (don't infinitely recurse).
if (
!Entities.Contains(externalType) &&
!CustomDtos.Contains(externalType) &&
!ExternalTypes.Contains(externalType)
)
{
if (_externalTypes.Add(Cache(externalType)))
{
DiscoverExternalPropertyTypesOn(externalType);
}
}
}
private bool AddCrudStrategy(
Type iface,
TypeViewModel strategyType,
HashSet <CrudStrategyTypeUsage> set,
ClassViewModel declaredFor = null
)
{
if (!strategyType.IsA(iface))
{
return(false);
}
var servedType = strategyType.GenericArgumentsFor(iface).Single();
if (!servedType.HasClassViewModel)
{
throw new InvalidOperationException($"{servedType} is not a valid type argument for a {iface}.");
}
var servedClass = Cache(servedType.ClassViewModel);
// See if we were expecting that the strategy be declared for a particular type
// by virtue of its nesting. If this type has been overridden to something else by an attribute, then that's wrong.
var explicitlyDeclaredFor = strategyType.GetAttributeValue <DeclaredForAttribute>(a => a.DeclaredFor)?.ClassViewModel;
if (explicitlyDeclaredFor != null && declaredFor != null && !explicitlyDeclaredFor.Equals(declaredFor))
{
throw new InvalidOperationException(
$"Expected that {strategyType} is declared for {declaredFor}, but it was explicitly declared for {explicitlyDeclaredFor} instead.");
}
// Any explicit declaration is OK. Use that,
// or the passed in value if no explicit value is given via attribute,
// or just the type that is served if neither are present.
declaredFor = explicitlyDeclaredFor ?? declaredFor ?? servedClass;
if (declaredFor.IsDto && !servedClass.Equals(declaredFor.DtoBaseViewModel))
{
throw new InvalidOperationException($"{strategyType} is not a valid {iface} for {declaredFor} - " +
$"{strategyType} must satisfy {iface} with type parameter <{declaredFor.DtoBaseViewModel}>.");
}
set.Add(new CrudStrategyTypeUsage(Cache(strategyType.ClassViewModel), servedClass, declaredFor));
return(true);
}
protected override IReadOnlyCollection <PropertyViewModel> RawProperties(ClassViewModel effectiveParent)
{
var result = Symbol.GetMembers()
.Where(s => s.Kind == SymbolKind.Property)
.Cast <IPropertySymbol>()
.Select((s, i) => new SymbolPropertyViewModel(effectiveParent, this, s)
{
ClassFieldOrder = i
})
.Cast <PropertyViewModel>()
.ToList();
// Add properties from the base class
if (Symbol.BaseType != null && Symbol.BaseType.Name != "Object")
{
var parentSymbol = new SymbolClassViewModel(Symbol.BaseType);
result.AddRange(parentSymbol.RawProperties(effectiveParent));
}
return(result.AsReadOnly());
}
private static void AddChildModels(List <ClassViewModel> models, ClassViewModel model)
{
foreach (var prop in model.Properties.Where(p => !p.IsInternalUse && p.PureType.IsPOCO && IsValidViewModelClass(p.PureType.Name)))
{
var propModel = prop.PureType.ClassViewModel;
if (propModel != null && !propModel.HasDbSet && !models.Contains(propModel))
{
models.Add(propModel);
AddChildModels(models, propModel);
}
}
foreach (var method in model.Methods.Where(p => !p.IsInternalUse && !p.ReturnType.IsVoid && p.ReturnType.PureType.IsPOCO))
{
// Get a unique key
string key = GetKey(method.ReturnType.PureType);
lock (models)
{
if (!models.Any(f => f.Name == method.ReturnType.PureType.Name))
{
var methodModel = new ClassViewModel(method.ReturnType.PureType, "", "", false);
models.Add(methodModel);
AddChildModels(models, methodModel);
}
}
// Iterate each of the incoming arguments and check them
foreach (var arg in method.Parameters.Where(p => !p.IsDI && p.Type.IsPOCO))
{
string argKey = GetKey(arg.Type);
lock (models)
{
if (!models.Any(f => f.Name == arg.Type.Name))
{
var argModel = new ClassViewModel(arg.Type, "", "", false);
models.Add(argModel);
AddChildModels(models, argModel);
}
}
}
}
}
internal MethodViewModel(MethodWrapper wrapper, ClassViewModel parent, int classMethodOrder)
{
Wrapper = wrapper;
Parent = parent;
ClassMethodOrder = classMethodOrder;
}
internal MethodViewModel(ClassViewModel parent)
{
Parent = parent;
}
protected abstract IReadOnlyCollection <PropertyViewModel> RawProperties(ClassViewModel effectiveParent);
private object GetCacheKey(ClassViewModel classViewModel) =>
(classViewModel.Type as ReflectionTypeViewModel)?.Info as object
?? (classViewModel.Type as SymbolTypeViewModel)?.Symbol as object
?? throw new NotSupportedException("Unknown subtype of TypeViewModel");
/// <summary>
/// Adds a context to the reflection repository. Do this on startup with all the contexts.
/// </summary>
/// <typeparam name="t">Type of DbContext to add.</typeparam>
/// <returns></returns>
public static List <ClassViewModel> AddContext(Type t, string area = "")
{
var context = new ClassViewModel(t, null, null, false);
return(AddContext(context, area));
}
public SymbolMethodViewModel(IMethodSymbol symbol, ClassViewModel parent) : base(parent)
{
Symbol = symbol;
}
public ReflectionMethodViewModel(ClassViewModel parent, MethodInfo methodInfo) : base(parent)
{
Info = methodInfo;
}
