Error : Cannot find Facebook SDK Version - facebook

the SDK 7.x is not working on Unity 5.1.0f3 , i always got the error version not found .
does someone have see this error ?

Actually, it's just a warning. But you can fix it.
There are several places where facebook plugin calls
FBBuildVersionAttribute.GetVersionAttributeOfType(typeof(AbstractFacebook));
So first, you need to modify FBBuildVersionAttribute to this:
// we are going to apply this attribute to Class
// instead of Assembly
// also make it inheritable for all implementations
[AttributeUsage(AttributeTargets.Class, Inherited = true)]
public class FBBuildVersionAttribute : Attribute
{
private DateTime buildDate;
private string buildHash;
private string buildVersion;
private string sdkVersion;
public DateTime Date { get { return buildDate; } }
public string Hash { get { return buildHash; } }
public string SdkVersion { get { return sdkVersion; } }
public string BuildVersion { get { return buildVersion; } }
public FBBuildVersionAttribute(string sdkVersion, string buildVersion)
{
this.buildVersion = buildVersion;
var parts = buildVersion.Split('.');
buildDate = DateTime.ParseExact(parts[0], "yyMMdd", System.Globalization.CultureInfo.InvariantCulture);
buildHash = parts[1];
this.sdkVersion = sdkVersion;
}
public override string ToString()
{
return buildVersion;
}
public static FBBuildVersionAttribute GetVersionAttributeOfType(Type type)
{
foreach (FBBuildVersionAttribute attribute in getAttributes(type))
{
return attribute;
}
return null;
}
private static FBBuildVersionAttribute[] getAttributes(Type type)
{
if (type == null)
throw new ArgumentNullException("type");
// we want to get attributes from type instead of assmebly
return (FBBuildVersionAttribute[])(type.GetCustomAttributes(typeof(FBBuildVersionAttribute), false));
}
}
No you just need to add this attribute to AbstractFacebook:
[FBBuildVersionAttribute("7.0.1", "150604.98558e55096475c")]
public abstract class AbstractFacebook : MonoBehaviour
{
// ...
}
Note that 98558e55096475c part is trash string. It's not actual build hash, cause I don't have one.

Get the latest version of the FB Unity SDK. Change log says it's fixed now.
https://developers.facebook.com/docs/unity/change-log

Related

context.GetArgument() returning null with ByteGraphType

I´m learning how to use CustomScalar in graphql-dotnet.
I have a tinyint column in my table and from what I have read, I´m supposed to use byte on this column in C#. After research I found out that I need to create a ByteGraphType, but I´m having trouble doing that.
I got the ByteGraphType example from this link https://github.com/graphql-dotnet/graphql-dotnet/issues/458, so I think it will work.
With this code, I can query the table, however, my mutation is not working. I didn´t find an example to demonstrate how the mutation would look like with a byte column. I tried as is stated in my code example, but in this line (var avaliacao = context.GetArgument("avaliacao");), my argument avaliacao.Nota is returning null and I´m not sure on how to proceed.
Can someone help me?
Thank you
THAT´S MY CODE
//Model
[Column("nota")]
public byte Nota { get; set; }
//Type
Field<ByteGraphType>("Nota", resolve: context => context.Source.Nota);
//InputType
Field<ByteGraphType>("nota");
//Query
Field<ListGraphType<AvaliacaoType>>(
"avaliacoes",
resolve: context => contextServiceLocator.AvaliacaoRepository.All());
//Mutation
Field<AvaliacaoType>(
"createAvaliacao",
arguments: new QueryArguments(
new QueryArgument<NonNullGraphType<AvaliacaoInputType>> { Name = "avaliacao" }
),
resolve: context =>
{
var schema = new Schema();
schema.RegisterValueConverter(new ByteValueConverter());
var avaliacao = context.GetArgument<Avaliacao>("avaliacao");
avaliacao.Nota.AstFromValue(schema, new ByteGraphType());
return contextServiceLocator.AvaliacaoRepository.Add(avaliacao);
});
//ByteGraphType
using GraphQL.Language.AST;
using GraphQL.Types;
using System;
namespace Api.Helpers
{
public class ByteGraphType : ScalarGraphType
{
public ByteGraphType()
{
Name = "Byte";
}
public override object ParseLiteral(IValue value)
{
var byteVal = value as ByteValue;
return byteVal?.Value;
}
public override object ParseValue(object value)
{
if (value == null)
return null;
try
{
var result = Convert.ToByte(value);
return result;
}
catch (FormatException)
{
return null;
}
}
public override object Serialize(object value)
{
return ParseValue(value).ToString();
}
public class ByteValueConverter : IAstFromValueConverter
{
public bool Matches(object value, IGraphType type)
{
return value is byte;
}
public IValue Convert(object value, IGraphType type)
{
return new ByteValue((byte)value);
}
}
public class ByteValue : ValueNode<byte>
{
public ByteValue(byte value)
{
Value = value;
}
protected override bool Equals(ValueNode<byte> node)
{
return Value == node.Value;
}
}
}
}
What I need is to be able to save a record of a table that has a tinyint column. If I change the type in my code to int, I can mutate, but can´t query.
I changed my CustomScalar and it worked:
using GraphQL.Language.AST;
using GraphQL.Types;
using System;
namespace Api.Helpers
{
public class ByteGraphType : ScalarGraphType
{
public ByteGraphType()
{
Name = "Byte";
Description = "ByteGraphType";
}
/// <inheritdoc />
public override object Serialize(object value)
{
return ParseValue(value).ToString();
}
/// <inheritdoc />
public override object ParseValue(object value)
{
byte result;
if (byte.TryParse(value?.ToString() ?? string.Empty, out result))
{
return result;
}
return null;
}
/// <inheritdoc />
public override object ParseLiteral(IValue value)
{
if (value is StringValue)
{
return ParseValue(((StringValue)value).Value);
}
return null;
}
}
}

Custom deserialization

I have collection with thousands of documents, in document there's field named Rate, problem is currently its type is string, so when it's not available, the old developer set it to "N/A". For now I want to change the type of this field to numeric in C# (set it to 0 when n/a), but if I do so I can't load the past data.
Can we customize the deserialization so it will convert N/A to 0?
You need to create an IBsonSerializer or SerializerBase<> and attach it to the property you wish to serialize using the BsonSerializerAttribute. Something like the following:
public class BsonStringNumericSerializer : SerializerBase<double>
{
public override double Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)
{
var type = context.Reader.GetCurrentBsonType();
if (type == BsonType.String)
{
var s = context.Reader.ReadString();
if (s.Equals("N/A", StringComparison.InvariantCultureIgnoreCase))
{
return 0.0;
}
else
{
return double.Parse(s);
}
}
else if (type == BsonType.Double)
{
return context.Reader.ReadDouble();
}
// Add any other types you need to handle
else
{
return 0.0;
}
}
}
public class YourClass
{
[BsonSerializer(typeof(BsonStringNumericSerializer))]
public double YourDouble { get; set; }
}
If you don't want to use attributes you can create an IBsonSerializationProvider and register it using BsonSerializer.RegisterSerializationProvider.
Full documentation of MongoDB C# Bson serialization can be found here

Get and Set attribute values of a class using aspectJ

I am using aspectj to add some field to a existing class and annotate it also.
I am using load time weaving .
Example :- I have a Class customer in which i am adding 3 string attributes. But my issues is that I have to set some values and get it also before my business call.
I am trying the below approach.
In my aj file i have added the below, my problem is in the Around pointcut , how do i get the attribute and set the attribute.
public String net.customers.PersonCustomer.getOfflineRiskCategory() {
return OfflineRiskCategory;
}
public void net.customers.PersonCustomer.setOfflineRiskCategory(String offlineRiskCategory) {
OfflineRiskCategory = offlineRiskCategory;
}
public String net.customers.PersonCustomer.getOnlineRiskCategory() {
return OnlineRiskCategory;
}
public void net.customers.PersonCustomer.setOnlineRiskCategory(String onlineRiskCategory) {
OnlineRiskCategory = onlineRiskCategory;
}
public String net.customers.PersonCustomer.getPersonCommercialStatus() {
return PersonCommercialStatus;
}
public void net.customers.PersonCustomer.setPersonCommercialStatus(String personCommercialStatus) {
PersonCommercialStatus = personCommercialStatus;
}
#Around("execution(* net.xxx.xxx.xxx.DataMigration.populateMap(..))")
public Object invoke(ProceedingJoinPoint joinPoint) throws Throwable {
Object arguments[] = joinPoint.getArgs();
if (arguments != null) {
HashMap<String, String> hMap = (HashMap) arguments[0];
PersonCustomer cus = (PersonCustomer) arguments[1];
return joinPoint.proceed();
}
If anyone has ideas please let me know.
regards,
FT
First suggestion, I would avoid mixing code-style aspectj with annotation-style. Ie- instead of #Around, use around.
Second, instead of getting the arguments from the joinPoint, you should bind them in the pointcut:
Object around(Map map, PersonCustomer cust) :
execution(* net.xxx.xxx.xxx.DataMigration.populateMap(Map, PersonCustomer) && args(map, cust) {
...
return proceed(map, cust);
}
Now, to answer your question: you also need to use intertype declarations to add new fields to your class, so do something like this:
private String net.customers.PersonCustomer.OfflineRiskCategory;
private String net.customers.PersonCustomer.OnlineRiskCategory;
private String net.customers.PersonCustomer.PersonCommercialStatus;
Note that the private keyword here means private to the aspect, not to the class that you declare it on.

Trouble with Include extension on IObjectSet not working

Could anyone help me in assessing why the code below doesn't work. I'm using the common extension method for implementing Include when using IObjectset. In our repositories we were seeing this not returning correctly so I've isolated the code in test app as below. I've also included the interface based Context if this may prove relevant and a screenshot of the relevant model section. This occurs for all Includes on IObjectSet properties not just the DPASelections one I've chosen for this example.
If I update the context to return ObjectSet (still using the POCO entities) rather than IObjectSet it all works fine. When using IObjectSet and the extension method and step through the code I see that the extension method is completing correctly with a call to the ObjectQuery we're casting to but the included entities are never returned on the graph. As said, this works perfectly when I don't interface out the Context and return ObjectSet properties hence calling Include directly on ObjectSet.
I'm not getting any errors on executing the query so this isn't the same as several other questions on SO which refer to compiled queries.
Has anyone else experienced problems with this extension method implementation or can anyone spot what I'm doing wrong here?
Any help very much appreciated.
static void Main(string[] args)
{
using (var context = new AssocEntities())
{
context.ContextOptions.LazyLoadingEnabled = false;
Candidate candidate = context.Candidates
.Include("DPASelections.DPAOption")
.SingleOrDefault(c => c.Number == "N100064");
//Count is 0 when using ext. method and IObjectSet through AssocContext but correct when using Include
//on ObjectSet through AssocContext
Console.WriteLine("DPASelection count = {0}",candidate.DPASelections.Count);
//This is always null when using IObjectSet and ext. method but populated
//when using Include on ObjectSet
var option = candidate.DPASelections.First().DPAOption;
Console.WriteLine("First DPAOption = {0} : {1}",option.Id,option.Text);
}
Console.ReadLine();
}
}
public static class Extensions
{
public static IQueryable<TSource> Include<TSource>(this IQueryable<TSource> source, string path)
{
var objectQuery = source as ObjectQuery<TSource>;
if (objectQuery != null)
{
objectQuery.Include(path);
}
return source;
}
}
//Subset of custom context implementing IObjectSet as returns.
//Works fine when I return ObjectSet rather than IObjectSet and use
//the Include method directly
public partial class AssocEntities : ObjectContext
{
public const string ConnectionString = "name=AssocEntities";
public const string ContainerName = "AssocEntities";
#region Constructors
public AssocEntities()
: base(ConnectionString, ContainerName)
{
this.ContextOptions.LazyLoadingEnabled = true;
}
public AssocEntities(string connectionString)
: base(connectionString, ContainerName)
{
this.ContextOptions.LazyLoadingEnabled = true;
}
public AssocEntities(EntityConnection connection)
: base(connection, ContainerName)
{
this.ContextOptions.LazyLoadingEnabled = true;
}
#endregion
#region IObjectSet Properties
public IObjectSet<Address> Addresses
{
get { return _addresses ?? (_addresses = CreateObjectSet<Address>("Addresses")); }
}
private IObjectSet<Address> _addresses;
public IObjectSet<Answer> Answers
{
get { return _answers ?? (_answers = CreateObjectSet<Answer>("Answers")); }
}
private IObjectSet<Answer> _answers;
public IObjectSet<Candidate> Candidates
{
get { return _candidates ?? (_candidates = CreateObjectSet<Candidate>("Candidates")); }
}
}
And the model...
I needed to replace objectQuery.Include(path); with objectQuery = objectQuery.Include(path);
In .Net framework 4.0 there is a build-in Extentionmethod for Include
just add the System.Data.Entity namespace.
It uses reflection - here is how it works:
private static T CommonInclude<T>(T source, string path)
{
MethodInfo method = source.GetType().GetMethod("Include", DbExtensions.StringIncludeTypes);
if (!(method != (MethodInfo) null) || !typeof (T).IsAssignableFrom(method.ReturnType))
return source;
return (T) method.Invoke((object) source, new object[1]
{
(object) path
});
}

Refactoring two basic classes

How would you refactor these two classes to abstract out the similarities? An abstract class? Simple inheritance? What would the refactored class(es) look like?
public class LanguageCode
{
/// <summary>
/// Get the lowercase two-character ISO 639-1 language code.
/// </summary>
public readonly string Value;
public LanguageCode(string language)
{
this.Value = new CultureInfo(language).TwoLetterISOLanguageName;
}
public static LanguageCode TryParse(string language)
{
if (language == null)
{
return null;
}
if (language.Length > 2)
{
language = language.Substring(0, 2);
}
try
{
return new LanguageCode(language);
}
catch (ArgumentException)
{
return null;
}
}
}
public class RegionCode
{
/// <summary>
/// Get the uppercase two-character ISO 3166 region/country code.
/// </summary>
public readonly string Value;
public RegionCode(string region)
{
this.Value = new RegionInfo(region).TwoLetterISORegionName;
}
public static RegionCode TryParse(string region)
{
if (region == null)
{
return null;
}
if (region.Length > 2)
{
region = region.Substring(0, 2);
}
try
{
return new RegionCode(region);
}
catch (ArgumentException)
{
return null;
}
}
}
It depends, if they are not going to do much more, then I would probably leave them as is - IMHO factoring out stuff is likely to be more complex, in this case.
Unless you have a strong reason for refactoring (because you are going to add more classes like those in near future) the penalty of changing the design for such a small and contrived example would overcome the gain in maintenance or overhead in this scenario. Anyhow here is a possible design based on generic and lambda expressions.
public class TwoLetterCode<T>
{
private readonly string value;
public TwoLetterCode(string value, Func<string, string> predicate)
{
this.value = predicate(value);
}
public static T TryParse(string value, Func<string, T> predicate)
{
if (value == null)
{
return default(T);
}
if (value.Length > 2)
{
value = value.Substring(0, 2);
}
try
{
return predicate(value);
}
catch (ArgumentException)
{
return default(T);
}
}
public string Value { get { return this.value; } }
}
public class LanguageCode : TwoLetterCode<LanguageCode> {
public LanguageCode(string language)
: base(language, v => new CultureInfo(v).TwoLetterISOLanguageName)
{
}
public static LanguageCode TryParse(string language)
{
return TwoLetterCode<LanguageCode>.TryParse(language, v => new LanguageCode(v));
}
}
public class RegionCode : TwoLetterCode<RegionCode>
{
public RegionCode(string language)
: base(language, v => new CultureInfo(v).TwoLetterISORegionName)
{
}
public static RegionCode TryParse(string language)
{
return TwoLetterCode<RegionCode>.TryParse(language, v => new RegionCode(v));
}
}
This is a rather simple question and to me smells awefully like a homework assignment.
You can obviously see the common bits in the code and I'm pretty sure you can make an attempt at it yourself by putting such things into a super-class.
You could maybe combine them into a Locale class, which stores both Language code and Region code, has accessors for Region and Language plus one parse function which also allows for strings like "en_gb"...
That's how I've seen locales be handled in various frameworks.
These two, as they stand, aren't going to refactor well because of the static methods.
You'd either end up with some kind of factory method on a base class that returns an a type of that base class (which would subsequently need casting) or you'd need some kind of additional helper class.
Given the amount of extra code and subsequent casting to the appropriate type, it's not worth it.
Create a generic base class (eg AbstractCode<T>)
add abstract methods like
protected T GetConstructor(string code);
override in base classes like
protected override RegionCode GetConstructor(string code)
{
return new RegionCode(code);
}
Finally, do the same with string GetIsoName(string code), eg
protected override GetIsoName(string code)
{
return new RegionCode(code).TowLetterISORegionName;
}
That will refactor the both. Chris Kimpton does raise the important question as to whether the effort is worth it.
I'm sure there is a better generics based solution. But still gave it a shot.
EDIT: As the comment says, static methods can't be overridden so one option would be to retain it and use TwoLetterCode objects around and cast them, but, as some other person has already pointed out, that is rather useless.
How about this?
public class TwoLetterCode {
public readonly string Value;
public static TwoLetterCode TryParseSt(string tlc) {
if (tlc == null)
{
return null;
}
if (tlc.Length > 2)
{
tlc = tlc.Substring(0, 2);
}
try
{
return new TwoLetterCode(tlc);
}
catch (ArgumentException)
{
return null;
}
}
}
//Likewise for Region
public class LanguageCode : TwoLetterCode {
public LanguageCode(string language)
{
this.Value = new CultureInfo(language).TwoLetterISOLanguageName;
}
public static LanguageCode TryParse(string language) {
return (LanguageCode)TwoLetterCode.TryParseSt(language);
}
}