private static Field ProcessFieldOrProperty(MemberInfo prop, Type fieldOrPropType, ParameterExpression param, ISchemaProvider schema, bool createEnumTypes, bool createNewComplexTypes)
{
if (ignoreProps.Contains(prop.Name) || GraphQLIgnoreAttribute.ShouldIgnoreMemberFromQuery(prop))
{
return(null);
}
// Get Description from ComponentModel.DescriptionAttribute
string description = "";
var d = (DescriptionAttribute)prop.GetCustomAttribute(typeof(DescriptionAttribute), false);
if (d != null)
{
description = d.Description;
}
LambdaExpression le = Expression.Lambda(prop.MemberType == MemberTypes.Property ? Expression.Property(param, prop.Name) : Expression.Field(param, prop.Name), param);
var attributes = prop.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute), true).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(attributes);
var returnType = le.ReturnType.IsEnumerableOrArray() ? le.ReturnType.GetEnumerableOrArrayType() : le.ReturnType;
var t = CacheType(returnType, schema, createEnumTypes, createNewComplexTypes);
var f = new Field(SchemaGenerator.ToCamelCaseStartsLower(prop.Name), le, description, null, null, requiredClaims);
if (t != null && t.IsEnum && !f.ReturnTypeClr.IsNullableType())
{
f.ReturnTypeNotNullable = true;
}
return(f);
}
public MutationType(ISchemaProvider schema, string methodName, GqlTypeInfo returnType, object mutationClassInstance, MethodInfo method, string description, RequiredClaims authorizeClaims, bool isAsync)
{
Description = description;
ReturnType = returnType;
this.mutationClassInstance = mutationClassInstance;
this.method = method;
Name = methodName;
AuthorizeClaims = authorizeClaims;
this.isAsync = isAsync;
argInstanceType = method.GetParameters()
.FirstOrDefault(p => p.GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null || p.ParameterType.GetTypeInfo().GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null)?.ParameterType;
if (argInstanceType != null)
{
foreach (var item in argInstanceType.GetProperties())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromProperty(schema, item));
}
foreach (var item in argInstanceType.GetFields())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromField(schema, item));
}
}
}
/// <summary>
/// Build INPUT Type to be used by Mutations
/// </summary>
/// <param name="schema"></param>
/// <remarks>
/// Since Types and Inputs cannot have the same name, camelCase the name to prevent duplicates.
/// </remarks>
/// <returns></returns>
private static List <TypeElement> BuildInputTypes(ISchemaProvider schema)
{
var types = new List <TypeElement>();
foreach (ISchemaType schemaType in schema.GetNonContextTypes().Where(s => s.IsInput))
{
if (schemaType.Name.StartsWith("__"))
{
continue;
}
var inputValues = new List <InputValue>();
foreach (Field field in schemaType.GetFields())
{
if (field.Name.StartsWith("__"))
{
continue;
}
// Skip any property with special attribute
//== JT: When reading PropertyInfo, must use the default casing. Had to convert back to Pascal from Camel case
var property = schemaType.ContextType.GetProperty(SchemaGenerator.ToPascalCaseStartsUpper(field.Name));
if (property != null && GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(property))
{
continue;
}
// Skipping custom fields added to schema
if (field.Resolve.NodeType == System.Linq.Expressions.ExpressionType.Call)
{
continue;
}
// Skipping ENUM type
if (field.ReturnType.TypeDotnet.GetTypeInfo().IsEnum)
{
continue;
}
inputValues.Add(new InputValue
{
Name = field.Name,
Description = field.Description,
Type = BuildType(schema, field.ReturnType, field.ReturnType.TypeDotnet, true)
});
}
var typeElement = new TypeElement
{
Kind = "INPUT_OBJECT",
Name = schemaType.Name,
Description = schemaType.Description,
InputFields = inputValues.ToArray()
};
types.Add(typeElement);
}
return(types);
}
private static Field ProcessFieldOrProperty <TContextType>(MemberInfo prop, Type fieldOrPropType, ParameterExpression param, MappedSchemaProvider <TContextType> schema)
{
if (ignoreProps.Contains(prop.Name) || GraphQLIgnoreAttribute.ShouldIgnoreMemberFromQuery(prop))
{
return(null);
}
// Get Description from ComponentModel.DescriptionAttribute
string description = "";
var d = (DescriptionAttribute)prop.GetCustomAttribute(typeof(DescriptionAttribute), false);
if (d != null)
{
description = d.Description;
}
LambdaExpression le = Expression.Lambda(prop.MemberType == MemberTypes.Property ? Expression.Property(param, prop.Name) : Expression.Field(param, prop.Name), param);
var f = new Field(SchemaGenerator.ToCamelCaseStartsLower(prop.Name), le, description);
var t = CacheType <TContextType>(fieldOrPropType, schema);
if (t != null && t.IsEnum && !f.ReturnTypeClr.IsNullableType())
{
f.ReturnTypeNotNullable = true;
}
return(f);
}
/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
if (method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) is GraphQLMutationAttribute attribute)
{
var isAsync = method.GetCustomAttribute(typeof(AsyncStateMachineAttribute)) != null;
string name = SchemaGenerator.ToCamelCaseStartsLower(method.Name);
//== JT: Allow user to customize the schema-first casing.
var n = (System.ComponentModel.DisplayNameAttribute)method.GetCustomAttribute(typeof(System.ComponentModel.DisplayNameAttribute), false);
if (n != null)
{
name = n.DisplayName;
}
//==
var claims = method.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute)).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(claims);
var actualReturnType = GetTypeFromMutationReturn(isAsync ? method.ReturnType.GetGenericArguments()[0] : method.ReturnType);
var typeName = GetSchemaTypeNameForDotnetType(actualReturnType);
var returnType = new GqlTypeInfo(() => GetReturnType(typeName), actualReturnType);
var mutationType = new MutationType(this, name, returnType, mutationClassInstance, method, attribute.Description, requiredClaims, isAsync, SchemaFieldNamer);
mutations[name] = mutationType;
}
}
}
public Field ReplaceField <TParams, TReturn>(Expression <Func <TContextType, object> > selection, TParams argTypes, Expression <Func <TContextType, TParams, TReturn> > selectionExpression, string description, string returnSchemaType = null, bool?isNullable = null)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(selection);
var name = SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name);
Type <TContextType>().RemoveField(name);
return(Type <TContextType>().AddField(name, argTypes, selectionExpression, description, returnSchemaType, isNullable));
}
public MutationType(ISchemaProvider schema, string methodName, GqlTypeInfo returnType, object mutationClassInstance, MethodInfo method, string description, RequiredClaims authorizeClaims, bool isAsync, Func <MemberInfo, string> fieldNamer)
{
Description = description;
ReturnType = returnType;
this.mutationClassInstance = mutationClassInstance;
this.method = method;
Name = methodName;
AuthorizeClaims = authorizeClaims;
this.isAsync = isAsync;
argInstanceType = method.GetParameters()
.FirstOrDefault(p => p.GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null || p.ParameterType.GetTypeInfo().GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null)?.ParameterType;
if (argInstanceType != null)
{
foreach (var item in argInstanceType.GetProperties())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(fieldNamer(item), ArgType.FromProperty(schema, item));
}
foreach (var item in argInstanceType.GetFields())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(fieldNamer(item), ArgType.FromField(schema, item));
}
}
//== JT: Start Here
else
{
/*== JT
* When parameters are the standard System Types like; Int, String, etc or using the EntityGraphQL.Schema.RequiredField,
* loop through the parameters and NOT the object's properties
* NOTE: some parameters might be Services
* EX: public ReturnModel RemoveById(DataContext context, RequiredField<int> id)
*/
// !! Forcing a single parameter ONLY. Anything more than that should require a POCO !!
ParameterInfo item = method.GetParameters()
.FirstOrDefault(p => p.ParameterType.Namespace.StartsWith("EntityGraphQL.Schema") || p.ParameterType.Namespace.StartsWith("System"));
if (item.ParameterType.Name == "Nullable`1")
{
Type argType = item.ParameterType.GetGenericArguments()[0];
argInstanceType = argType;
}
else
{
argInstanceType = item.ParameterType;
}
//TODO: see if able to use the "fieldNamer()" function
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromParameter(schema, item));
}
//==
}
/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
var attribute = method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) as GraphQLMutationAttribute;
if (attribute != null)
{
string name = SchemaGenerator.ToCamelCaseStartsLower(method.Name);
var mutationType = new MutationType(name, types[GetSchemaTypeNameForRealType(method.ReturnType)], mutationClassInstance, method, attribute.Description);
mutations[name] = mutationType;
}
}
}
private static TypeElement BuildType(ISchemaProvider schema, GqlTypeInfo typeInfo, Type clrType, bool isInput = false)
{
// Is collection of objects?
var type = new TypeElement();
if (clrType.IsEnumerableOrArray())
{
type.Kind = "LIST";
type.Name = null;
type.OfType = BuildType(schema, typeInfo, clrType.GetEnumerableOrArrayType(), isInput);
}
else if (clrType.Name == "EntityQueryType`1")
{
type.Kind = "SCALAR";
type.Name = "String";
type.OfType = null;
}
else if (clrType.GetTypeInfo().IsEnum)
{
type.Kind = "ENUM";
type.Name = typeInfo.SchemaType.Name;
type.OfType = null;
}
else
{
type.Kind = typeInfo.SchemaType.IsScalar ? "SCALAR" : "OBJECT";
type.OfType = null;
if (type.Kind == "OBJECT" && isInput)
{
type.Kind = "INPUT_OBJECT";
//== JT: !! INPUT_OBJECT names MUST use camelCase to avoid collision to OBJECT types !!
type.Name = SchemaGenerator.ToCamelCaseStartsLower(typeInfo.SchemaType.Name);
}
else
{
type.Name = typeInfo.SchemaType.Name;
}
//==
}
if (typeInfo.TypeNotNullable)
{
return(new TypeElement
{
Kind = "NON_NULL",
Name = null,
OfType = type
});
}
return(type);
}
/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
if (method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) is GraphQLMutationAttribute attribute)
{
string name = SchemaGenerator.ToCamelCaseStartsLower(method.Name);
var claims = method.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute)).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(claims);
var mutationType = new MutationType(name, types[GetSchemaTypeNameForClrType(method.ReturnType)], mutationClassInstance, method, attribute.Description, requiredClaims);
mutations[name] = mutationType;
}
}
}
/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
if (method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) is GraphQLMutationAttribute attribute)
{
var isAsync = method.GetCustomAttribute(typeof(AsyncStateMachineAttribute)) != null;
string name = SchemaGenerator.ToCamelCaseStartsLower(method.Name);
var claims = method.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute)).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(claims);
var actualReturnType = GetTypeFromMutationReturn(isAsync ? method.ReturnType.GetGenericArguments()[0] : method.ReturnType);
var typeName = GetSchemaTypeNameForDotnetType(actualReturnType);
var returnType = new GqlTypeInfo(() => GetReturnType(typeName), actualReturnType);
var mutationType = new MutationType(this, name, returnType, mutationClassInstance, method, attribute.Description, requiredClaims, isAsync);
mutations[name] = mutationType;
}
}
}
private void BuildFieldsFromBase()
{
if (IsEnum)
{
foreach (var item in Enum.GetNames(this.ContextType))
{
this.AddField(new Field(item, null, "", Name, ContextType));
}
return;
}
foreach (var f in ContextType.GetProperties())
{
if (!_fieldsByName.ContainsKey(f.Name))
{
//Get Description from ComponentModel.DescriptionAttribute
string description = string.Empty;
var d = (System.ComponentModel.DescriptionAttribute)f.GetCustomAttribute(typeof(System.ComponentModel.DescriptionAttribute), false);
if (d != null)
{
description = d.Description;
}
var parameter = Expression.Parameter(ContextType);
this.AddField(new Field(SchemaGenerator.ToCamelCaseStartsLower(f.Name), Expression.Lambda(Expression.Property(parameter, f.Name), parameter), description, null));
}
}
foreach (var f in ContextType.GetFields())
{
if (!_fieldsByName.ContainsKey(f.Name))
{
//Get Description from ComponentModel.DescriptionAttribute
string description = string.Empty;
var d = (System.ComponentModel.DescriptionAttribute)f.GetCustomAttribute(typeof(System.ComponentModel.DescriptionAttribute), false);
if (d != null)
{
description = d.Description;
}
var parameter = Expression.Parameter(ContextType);
this.AddField(new Field(SchemaGenerator.ToCamelCaseStartsLower(f.Name), Expression.Lambda(Expression.Field(parameter, f.Name), parameter), description, null));
}
}
}
private static TypeElement BuildType(ISchemaProvider schema, Type clrType, string gqlTypeName, IReadOnlyDictionary <Type, string> combinedMapping, bool isInput = false)
{
// Is collection of objects?
var type = new TypeElement();
if (clrType.IsEnumerableOrArray())
{
type.Kind = "LIST";
type.Name = null;
type.OfType = BuildType(schema, clrType.GetEnumerableOrArrayType(), gqlTypeName, combinedMapping, isInput);
}
else if (clrType.Name == "RequiredField`1")
{
type.Kind = "NON_NULL";
type.Name = null;
type.OfType = BuildType(schema, clrType.GetGenericArguments()[0], gqlTypeName, combinedMapping, isInput);
}
else if (clrType.GetTypeInfo().IsEnum)
{
type.Kind = "ENUM";
type.Name = FindNamedMapping(clrType, combinedMapping, gqlTypeName);
type.OfType = null;
}
else
{
type.Kind = FindTypeInMapping(clrType, combinedMapping) != null ? "SCALAR" : "OBJECT";
type.OfType = null;
if (type.Kind == "OBJECT" && isInput)
{
type.Name = SchemaGenerator.ToCamelCaseStartsLower(FindNamedMapping(clrType, combinedMapping, gqlTypeName));
}
else
{
type.Name = FindNamedMapping(clrType, combinedMapping, gqlTypeName);
}
}
return(type);
}
private object AssignArgValues(Dictionary <string, ExpressionResult> gqlRequestArgs)
{
var argInstance = Activator.CreateInstance(this.argInstanceType);
Type argType = this.argInstanceType;
foreach (var key in gqlRequestArgs.Keys)
{
var foundProp = false;
foreach (var prop in argType.GetProperties())
{
var propName = SchemaGenerator.ToCamelCaseStartsLower(prop.Name);
if (key == propName)
{
object value = GetValue(gqlRequestArgs, propName, prop.PropertyType);
prop.SetValue(argInstance, value);
foundProp = true;
}
}
if (!foundProp)
{
foreach (var field in argType.GetFields())
{
var fieldName = SchemaGenerator.ToCamelCaseStartsLower(field.Name);
if (key == fieldName)
{
object value = GetValue(gqlRequestArgs, fieldName, field.FieldType);
field.SetValue(argInstance, value);
foundProp = true;
}
}
}
if (!foundProp)
{
throw new EntityQuerySchemaException($"Could not find property or field {key} on schema object {argType.Name}");
}
}
return(argInstance);
}
/// <summary>
/// This is used in a lazy evaluated field as a graph can have circular dependencies
/// </summary>
/// <param name="schema"></param>
/// <param name="combinedMapping"></param>
/// <param name="typeName"></param>
/// <returns></returns>
public static Models.Field[] BuildFieldsForType(ISchemaProvider schema, string typeName)
{
if (typeName == "Query")
{
return(BuildRootQueryFields(schema));
}
if (typeName == "Mutation")
{
return(BuildMutationFields(schema));
}
var fieldDescs = new List <Models.Field>();
if (!schema.HasType(typeName))
{
return(fieldDescs.ToArray());
}
var type = schema.Type(typeName);
foreach (var field in type.GetFields())
{
if (field.Name.StartsWith("__"))
{
continue;
}
fieldDescs.Add(new Models.Field
{
Args = BuildArgs(schema, field).ToArray(),
DeprecationReason = "",
Description = field.Description,
IsDeprecated = false,
Name = SchemaGenerator.ToCamelCaseStartsLower(field.Name),
Type = BuildType(schema, field.ReturnType, field.ReturnType.TypeDotnet),
});
}
return(fieldDescs.ToArray());
}
public MutationType(string methodName, ISchemaType returnType, object mutationClassInstance, MethodInfo method, string description, RequiredClaims authorizeClaims)
{
this.Description = description;
this.ReturnType = returnType;
this.mutationClassInstance = mutationClassInstance;
this.method = method;
Name = methodName;
AuthorizeClaims = authorizeClaims;
var methodArg = method.GetParameters().ElementAt(1);
this.argInstanceType = methodArg.ParameterType;
foreach (var item in argInstanceType.GetProperties())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), new ArgType
{
Type = item.PropertyType,
TypeNotNullable = GraphQLNotNullAttribute.IsMemberMarkedNotNull(item) || item.PropertyType.GetTypeInfo().IsEnum
});
}
foreach (var item in argInstanceType.GetFields())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), new ArgType
{
Type = item.FieldType,
TypeNotNullable = GraphQLNotNullAttribute.IsMemberMarkedNotNull(item) || item.FieldType.GetTypeInfo().IsEnum
});
}
}
private static Field ProcessFieldOrProperty(MemberInfo prop, ParameterExpression param, ISchemaProvider schema, bool createEnumTypes, bool createNewComplexTypes, Func<MemberInfo, string> fieldNamer)
{
if (ignoreProps.Contains(prop.Name) || GraphQLIgnoreAttribute.ShouldIgnoreMemberFromQuery(prop))
{
return null;
}
// Get Description from ComponentModel.DescriptionAttribute
string description = "";
var d = (DescriptionAttribute)prop.GetCustomAttribute(typeof(DescriptionAttribute), false);
if (d != null)
{
description = d.Description;
}
LambdaExpression le = Expression.Lambda(prop.MemberType == MemberTypes.Property ? Expression.Property(param, prop.Name) : Expression.Field(param, prop.Name), param);
var attributes = prop.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute), true).Cast<GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(attributes);
// get the object type returned (ignoring list etc) so we know the context to find fields etc
var returnType = le.ReturnType.IsEnumerableOrArray() ? le.ReturnType.GetEnumerableOrArrayType() : le.ReturnType.GetNonNullableType();
var t = CacheType(returnType, schema, createEnumTypes, createNewComplexTypes, fieldNamer);
// see if there is a direct type mapping from the expression return to to something.
// otherwise build the type info
var returnTypeInfo = schema.GetCustomTypeMapping(le.ReturnType) ?? new GqlTypeInfo(() => schema.Type(returnType), le.Body.Type);
/*== JT
* Allow user to customize the schema-first casing. */
string propName = SchemaGenerator.ToCamelCaseStartsLower(prop.Name);
var n = (DisplayNameAttribute)prop.GetCustomAttribute(typeof(DisplayNameAttribute), false);
if (n != null)
propName = n.DisplayName;
//==
// TODO: Luke added a `fieldNamer()`, need to review before adding propName variable
var f = new Field(fieldNamer(prop), le, description, returnTypeInfo, requiredClaims);
return f;
}
/// <summary>
/// Remove a field by an expression selection on the real type. The name is changed to lowerCaseCamel
/// </summary>
/// <param name="fieldSelection"></param>
public void RemoveField(Expression <Func <TBaseType, object> > fieldSelection)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(fieldSelection);
RemoveField(SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name));
}
private object AssignArgValues(Dictionary <string, ExpressionResult> gqlRequestArgs)
{
//== JT: "No parameterless constructor defined for type 'System.String'."
object argInstance;
if (this.argInstanceType.Name == "String")
{
argInstance = Activator.CreateInstance(this.argInstanceType, new char[] { });
}
else
{
argInstance = Activator.CreateInstance(this.argInstanceType);
}
Type argType = this.argInstanceType;
/*== JT: When using single parameter in a mutation,
* EX: public ReturnObj MethodName(DataContext context, RequiredField<int> id) { }
*/
if (argType.Name == "RequiredField`1")
{
var prop = argInstance.GetType().GetProperty("Value");
string memberName = gqlRequestArgs.First().Key;
object value = GetValue(gqlRequestArgs, memberName, prop.PropertyType);
prop.SetValue(argInstance, value);
return(argInstance);
}
else if (argType.Namespace.StartsWith("System"))
{
string memberName = gqlRequestArgs.First().Key;
object value = Expression.Lambda(gqlRequestArgs[memberName]).Compile().DynamicInvoke();
value = Convert.ChangeType(value, argType);
//assign value directly
argInstance = value;
return(argInstance);
}
//==
foreach (var key in gqlRequestArgs.Keys)
{
var foundProp = false;
foreach (var prop in argType.GetProperties())
{
var propName = SchemaGenerator.ToCamelCaseStartsLower(prop.Name);
if (key == propName)
{
object value = GetValue(gqlRequestArgs, propName, prop.PropertyType);
prop.SetValue(argInstance, value);
foundProp = true;
}
}
if (!foundProp)
{
foreach (var field in argType.GetFields())
{
var fieldName = SchemaGenerator.ToCamelCaseStartsLower(field.Name);
if (key == fieldName)
{
object value = GetValue(gqlRequestArgs, fieldName, field.FieldType);
field.SetValue(argInstance, value);
foundProp = true;
}
}
}
if (!foundProp)
{
throw new EntityQuerySchemaException($"Could not find property or field {key} on schema object {argType.Name}");
}
}
return(argInstance);
}
/// <summary>
/// Add a field from a type expression. The name to converted to lowerCamelCase
/// </summary>
/// <param name="fieldSelection"></param>
/// <param name="description"></param>
/// <param name="returnSchemaType"></param>
/// <typeparam name="TReturn"></typeparam>
public Field AddField <TReturn>(Expression <Func <TBaseType, TReturn> > fieldSelection, string description, string returnSchemaType = null, bool?isNullable = null, RequiredClaims authorizeClaims = null)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(fieldSelection);
return(AddField(SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name), fieldSelection, description, returnSchemaType, isNullable, authorizeClaims));
}
/// <summary>
/// Add a field to the root type. This is where you define top level objects/names that you can query.
/// The name defaults to the MemberExpression from selection modified to lowerCamelCase
/// </summary>
/// <param name="selection"></param>
/// <param name="description"></param>
/// <param name="returnSchemaType"></param>
public Field AddField(Expression <Func <TContextType, object> > selection, string description, string returnSchemaType = null, bool?isNullable = null)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(selection);
return(AddField(SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name), selection, description, returnSchemaType, isNullable));
}
/// <summary>
/// Add a field from a type expression. The name to converted to lowerCamelCase
/// </summary>
/// <param name="fieldSelection"></param>
/// <param name="description"></param>
/// <param name="returnSchemaType"></param>
/// <typeparam name="TReturn"></typeparam>
public Field AddField <TReturn>(Expression <Func <TBaseType, TReturn> > fieldSelection, string description, string returnSchemaType = null)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(fieldSelection);
return(AddField(SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name), fieldSelection, description, returnSchemaType));
}
/// <summary>
/// Builds a GraphQL schema file
/// </summary>
/// <returns></returns>
public string GetGraphQLSchema()
{
var extraMappings = customTypeMappings.ToDictionary(k => k.Key, v => v.Value);
return(SchemaGenerator.Make(this, extraMappings, this.customScalarTypes));
}
/// <summary>
/// Get a field by an expression selection on the real type. The name is changed to lowerCaseCamel
/// </summary>
/// <param name="fieldSelection"></param>
public Field GetField(Expression <Func <TBaseType, object> > fieldSelection, ClaimsIdentity claims = null)
{
var exp = ExpressionUtil.CheckAndGetMemberExpression(fieldSelection);
return(GetField(SchemaGenerator.ToCamelCaseStartsLower(exp.Member.Name), claims));
}
