I have found some plugin code on the web that enables me to get the entity ID and the object type code for an entity in a plugin. The plugin is fired on RetrieveMultiple on activitypointer. The code lets me get the id and object code of the entity that is currently being viewed (which is displaying the activities grid which is firing the plugin).
This code works fine when using the web interface. However I need it to also work in the Outlook preview pane and currently it does not. The activities grid in the Outlook preview pane just says "an error has occurred". Below is the code that the plugin is using to get the details from the web header.
internal static Dictionary<string, string> GetHeaderFields(HttpContext webcontext, string objectTypeCode, string objectId)
{
Dictionary<string, string> fields = new Dictionary<string, string>();
string callerentitytype = null;
string callerentityidstring = null;
try
{
// Activities Navigation Pane
if (new List<string>(webcontext.Request.Params.AllKeys).Contains("oType"))
{
callerentitytype = webcontext.Request.Params["oType"];
callerentityidstring = webcontext.Request.Params["oId"];
}
// Activities Sub Grid
else
{
string requeststring = webcontext.Request.UrlReferrer.Query;
requeststring = requeststring.Substring(1);
string[] parts = requeststring.Split(new string[] { "=", "&" }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < parts.Length - 1; i++)
if (parts[i].ToLower() == "otype" || parts[i].ToLower() == "etc")
callerentitytype = parts[i + 1];
else if (parts[i].ToLower() == "oid" || parts[i].ToLower() == "id")
callerentityidstring = parts[i + 1];
}
fields.Add(objectTypeCode, callerentitytype);
fields.Add(objectId, callerentityidstring);
}
catch (Exception ex)
{
throw new Plugin.LoggableException(string.Format("Failed to obtain header information; {0}", ex.Message), ex.InnerException);
}
return fields;
}
The reason is that webcontext.Request.UrlReferrer is NULL. Is there anywhere else I can get this info of the 'calling' entity? (Not the activity sub grid that is triggering the plugin, but the actual parent entity that the sub grid is on).
Thanks for any help or direction with this.
This might work. Each of the activitypointers that are returned should all be "regarding" the same record (if in a sub grid). If you take say the 1st one and examine the regardingobjectid property, that should be an entity reference which will give you the logical name of the parent and it's guid. If that works, it will work across all clients (in theory anyway).
Related
I want to add a field to Accounts which shows the email domain for that account e.g. #BT.com. I then have a spreadsheet which lists all the Accounts and their email domains. What I want to do is when a new Contact is added to Dynamics that it checks the spreadsheet for the same email domain (obviously without the contacts name in the email) and then assigned the Contact to the Account linked to that domain. Any idea how I would do this. Thanks
Probably best chance would be to develop CRM plugin. Register your plugin to be invoked when on after contact is created or updated (so called post-event phase). And in your plugin update the parentaccountid property of the contact entity to point to account of your choice.
Code-wise it goes something like (disclaimer: not tested):
// IPluginExecutionContext context = null;
// IOrganizationService organizationService = null;
var contact = (Entity)context.InputParameters["Target"];
var email = organizationService.Retrieve("contact", contact.Id, new ColumnSet("emailaddress1")).GetAttributeValue<string>("emailaddress1");
string host;
try
{
var address = new MailAddress(email);
host = address.Host;
}
catch
{
return;
}
var query = new QueryExpression("account");
query.TopCount = 1;
// or whatever the name of email domain field on account is
query.Criteria.AddCondition("emailaddress1", ConditionOperator.Contains, "#" + host);
var entities = organizationService.RetrieveMultiple(query).Entities;
if (entities.Count != 0)
{
contact["parentaccountid"] = entities[0].ToEntityReference();
}
organizationService.Update(contact);
I took Ondrej's code and cleaned it up a bit, re-factored for pre-operation. I also updated the logic to only match active account records and moved the query inside the try/catch. I am unfamiliar with the MailAddress object, I personally would just use string mapping logic.
var target = (Entity)context.InputParameters["Target"];
try
{
string host = new MailAddress(target.emailaddress1).Host;
var query = new QueryExpression("account");
query.TopCount = 1;
// or whatever the name of email domain field on account is
query.Criteria.AddCondition("emailaddress1", ConditionOperator.Contains, "#" + host);
query.Criteria.AddCondition("statecode", ConditionOperator.Equals, 0); //Active records only
var entities = organizationService.RetrieveMultiple(query).Entities;
if (entities.Count != 0)
{
target["parentaccountid"] = entities[0].ToEntityReference();
}
}
catch
{
//Log error
}
Is there a way that when I read an object from Realm that it can become a standalone or unmanaged object? In EF, this is called no tracking. The usage for this would be when I want to implement more business logic on my data objects before they are updated on the persistent data storage. I may want to give the RealmObject to a ViewModel, but when the changes come back from the ViewModel, I want to compare the disconnected object to the object in the datastore to determine what was changed, so If there was a way that I could disconnect the object from Realm when I give it to the ViewModel, then I can better manage what properties have changed, using my biz logic to do what I need, then save the changes back to realm.
I understand Realm does a lot of magic and many people will not want to add a layer like this but in my app, I cant really have the UI directly updating the datastore, unless there is a event that is raised that I can subscribe too and then attach my business logic this way.
I only saw one event and it does not appear to perform this action.
Thanks for your assistance.
First, get json NUGET :
PM> Install-Package Newtonsoft.Json
And, try this "hack" :
Deserialize the modified IsManaged property does the tricks.
public d DetachObject<d>(d Model) where d : RealmObject
{
return Newtonsoft.Json.JsonConvert.DeserializeObject<d>(
Newtonsoft.Json.JsonConvert.SerializeObject(Model)
.Replace(",\"IsManaged\":true", ",\"IsManaged\":false")
);
}
.
If you facing slow-down on JsonConvert:
According to source code
, the 'IsManaged' property only has get accessor and return true when private field _realm which is available
So, we has to set the instance of field _realm to null does the tricks
public d DetachObject<d>(d Model) where d : RealmObject
{
typeof(RealmObject).GetField("_realm",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)
.SetValue(Model, null);
return Model.IsManaged ? null : Model;
}
.
You will get empty RealmObject body after Realm are now implemented same strategy as LazyLoad
Record down live RealmObject and (deactivate) realm instance in object by Reflection. And set back recorded values to RealmObject. With handled all the ILists inside too.
public d DetachObject<d>(d Model) where d : RealmObject
{
return (d)DetachObjectInternal(Model);
}
private object DetachObjectInternal(object Model)
{
//Record down properties and fields on RealmObject
var Properties = Model.GetType().GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public)
.Where(x => x.Name != "ObjectSchema" && x.Name != "Realm" && x.Name != "IsValid" && x.Name != "IsManaged" && x.Name != "IsDefault")
.Select(x =>(x.PropertyType.Name == "IList`1")? ("-" + x.Name, x.GetValue(Model)) : (x.Name, x.GetValue(Model))).ToList();
var Fields = Model.GetType().GetFields(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public)
.Select(x => (x.Name, x.GetValue(Model))).ToList();
//Unbind realm instance from object
typeof(RealmObject).GetField("_realm", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).SetValue(Model, null);
//Set back the properties and fields into RealmObject
foreach (var field in Fields)
{
Model.GetType().GetField(field.Item1, System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public).SetValue(Model, field.Item2);
}
foreach (var property in Properties.OrderByDescending(x=>x.Item1[0]).ToList())
{
if (property.Item1[0] == '-')
{
int count = (int)property.Item2.GetType().GetMethod("get_Count").Invoke(property.Item2, null);
if (count > 0)
{
if (property.Item2.GetType().GenericTypeArguments[0].BaseType.Name == "RealmObject")
{
for (int i = 0; i < count; i++)
{
var seter = property.Item2.GetType().GetMethod("set_Item");
var geter = property.Item2.GetType().GetMethod("get_Item");
property.Item2.GetType().GetField("_realm", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Public).SetValue(property.Item2, null);
DetachObjectInternal(geter.Invoke(property.Item2, new object[] { i }));
}
}
}
}
else
{
Model.GetType().GetProperty(property.Item1, System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public).SetValue(Model, property.Item2);
}
}
return Model;
}
.
For List of the RealmObject , Using Select():
DBs.All<MyRealmObject>().ToList().Select(t => DBs.DetachObject(t)).ToList();
.
(Java)You dont need this if youre in java:
Maybe some day, this feature will come to .NET Realm
Realm.copyFromRealm();
#xamarin #C# #Realm #RealmObject #detach #managed #IsManaged #copyFromRealm
Until its added to Realm for Xamarin, I added a property to my Model that creates a copy of the object. This seems to work for my use. The TwoWay Binding error messages are now also not an issue. For a more complicated application, I don't want to put business or data logic in the ViewModel. This allows all the Magic of xamarin forms to work and me to implement logic when its finally time to save the changes back to realm.
[Ignored]
public Contact ToStandalone()
{
return new Contact()
{
companyName = this.companyName,
dateAdded = this.dateAdded,
fullName = this.fullName,
gender = this.gender,
website = this.website
};
}
However, If there are any relationships this method does not work for the relationships. Copying the List is not really an option either as the relationship cant exist if the object is not attached to Realm, I read this some where, can't find it to ref now. So I guess we will be waiting for the additions to the framework.
Not currently in the Xamarin interface but we could add it. The Java interface already has copyFromRealm which performs a deep copy. That also has a paired merging copyToRealmOrUpdate.
See Realm github issue for further discussion.
However, as a design issue, is this really meeting your need in an optimal way?
I have used converters in WPF apps to insert logic into the binding - these are available in Xamarin Forms.
Another way in Xamarin forms is to use Behaviours, as introduced in the blog article and covered in the API.
These approaches are more about adding logic between the UI and ViewModel, which you could consider as part of the ViewModel, but before updates are propagated to bound values.
After wasting too much time in 3rd party libraries like AutoMapper, I've created my own extension function which works pretty well. This function simply uses Reflection with the recession. (Currently, Only for List type. You can extend the functionality for Dictionary and other types of the collection very easily or you can completely modify the functionality based on your own requirements.).
I didn't do too much time and complexity analysis. I've tested only for my test case which contains many nested RealmObject, built from a 3500+ line of JSON object, took only 15 milliseconds to clone the object.
Here the complete extension available via Github Gist. If you want to extend the functionality of this extension please update this Github Gist, So, other developers can take advantage of it.
Here the complete extension -
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using Realms;
namespace ProjectName.Core.Extensions
{
public static class RealmExtension
{
public static T Clone<T>(this T source) where T: new()
{
//If source is null return null
if (source == null)
return default(T);
var target = new T();
var targetType = typeof(T);
//List of skip namespaces
var skipNamespaces = new List<string>
{
typeof(Realm).Namespace
};
//Get the Namespace name of Generic Collection
var collectionNamespace = typeof(List<string>).Namespace;
//flags to get properties
var flags = BindingFlags.IgnoreCase | BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance;
//Get target properties list which follows the flags
var targetProperties = targetType.GetProperties(flags);
//if traget properties is null then return default target
if (targetProperties == null)
return target;
//enumerate properties
foreach (var property in targetProperties)
{
//skip property if it's belongs to namespace available in skipNamespaces list
if (skipNamespaces.Contains(property.DeclaringType.Namespace))
continue;
//Get property information and check if we can write value in it
var propertyInfo = targetType.GetProperty(property.Name, flags);
if (propertyInfo == null || !property.CanWrite)
continue;
//Get value from the source
var sourceValue = property.GetValue(source);
//If property derived from the RealmObject then Clone that too
if (property.PropertyType.IsSubclassOf(typeof(RealmObject)) && (sourceValue is RealmObject))
{
var propertyType = property.PropertyType;
var convertedSourceValue = Convert.ChangeType(sourceValue, propertyType);
sourceValue = typeof(RealmExtension).GetMethod("Clone", BindingFlags.Static | BindingFlags.Public)
.MakeGenericMethod(propertyType).Invoke(convertedSourceValue, new[] { convertedSourceValue });
}
//Check if property belongs to the collection namespace and original value is not null
if (property.PropertyType.Namespace == collectionNamespace && sourceValue != null)
{
//get the type of the property (currently only supported List)
var listType = property.PropertyType;
//Create new instance of listType
var newList = (IList)Activator.CreateInstance(listType);
//Convert source value into the list type
var convertedSourceValue = Convert.ChangeType(sourceValue, listType) as IEnumerable;
//Enumerate source list and recursively call Clone method on each object
foreach (var item in convertedSourceValue)
{
var value = typeof(RealmExtension).GetMethod("Clone", BindingFlags.Static | BindingFlags.Public)
.MakeGenericMethod(item.GetType()).Invoke(item, new[] { item });
newList.Add(value);
}
//update source value
sourceValue = newList;
}
//set updated original value into the target
propertyInfo.SetValue(target, sourceValue);
}
return target;
}
}
}
Currently I'm developing an OAuth2 authorization server using DotNetOpenAuth CTP version. My authorization server is in asp.net MVC3, and it's based on the sample provided by the library. Everything works fine until the app reaches the point where the user authorizes the consumer client.
There's an action inside my OAuth controller which takes care of the authorization process, and is very similar to the equivalent action in the sample:
[Authorize, HttpPost, ValidateAntiForgeryToken]
public ActionResult AuthorizeResponse(bool isApproved)
{
var pendingRequest = this.authorizationServer.ReadAuthorizationRequest();
if (pendingRequest == null)
{
throw new HttpException((int)HttpStatusCode.BadRequest, "Missing authorization request.");
}
IDirectedProtocolMessage response;
if (isApproved)
{
var client = MvcApplication.DataContext.Clients.First(c => c.ClientIdentifier == pendingRequest.ClientIdentifier);
client.ClientAuthorizations.Add(
new ClientAuthorization
{
Scope = OAuthUtilities.JoinScopes(pendingRequest.Scope),
User = MvcApplication.LoggedInUser,
CreatedOn = DateTime.UtcNow,
});
MvcApplication.DataContext.SaveChanges();
response = this.authorizationServer.PrepareApproveAuthorizationRequest(pendingRequest, User.Identity.Name);
}
else
{
response = this.authorizationServer.PrepareRejectAuthorizationRequest(pendingRequest);
}
return this.authorizationServer.Channel.PrepareResponse(response).AsActionResult();
}
Everytime the program reaches this line:
this.authorizationServer.Channel.PrepareResponse(response).AsActionResult();
The system throws an exception which I have researched with no success. The exception is the following:
Only parameterless constructors and initializers are supported in LINQ to Entities.
The stack trace: http://pastebin.com/TibCax2t
The only thing I've done differently from the sample is that I used entity framework's code first approach, an I think the sample was done using a designer which autogenerated the entities.
Thank you in advance.
If you started from the example, the problem Andrew is talking about stays in DatabaseKeyNonceStore.cs. The exception is raised by one on these two methods:
public CryptoKey GetKey(string bucket, string handle) {
// It is critical that this lookup be case-sensitive, which can only be configured at the database.
var matches = from key in MvcApplication.DataContext.SymmetricCryptoKeys
where key.Bucket == bucket && key.Handle == handle
select new CryptoKey(key.Secret, key.ExpiresUtc.AsUtc());
return matches.FirstOrDefault();
}
public IEnumerable<KeyValuePair<string, CryptoKey>> GetKeys(string bucket) {
return from key in MvcApplication.DataContext.SymmetricCryptoKeys
where key.Bucket == bucket
orderby key.ExpiresUtc descending
select new KeyValuePair<string, CryptoKey>(key.Handle, new CryptoKey(key.Secret, key.ExpiresUtc.AsUtc()));
}
I've resolved moving initializations outside of the query:
public CryptoKey GetKey(string bucket, string handle) {
// It is critical that this lookup be case-sensitive, which can only be configured at the database.
var matches = from key in db.SymmetricCryptoKeys
where key.Bucket == bucket && key.Handle == handle
select key;
var match = matches.FirstOrDefault();
CryptoKey ck = new CryptoKey(match.Secret, match.ExpiresUtc.AsUtc());
return ck;
}
public IEnumerable<KeyValuePair<string, CryptoKey>> GetKeys(string bucket) {
var matches = from key in db.SymmetricCryptoKeys
where key.Bucket == bucket
orderby key.ExpiresUtc descending
select key;
List<KeyValuePair<string, CryptoKey>> en = new List<KeyValuePair<string, CryptoKey>>();
foreach (var key in matches)
en.Add(new KeyValuePair<string, CryptoKey>(key.Handle, new CryptoKey(key.Secret, key.ExpiresUtc.AsUtc())));
return en.AsEnumerable<KeyValuePair<string,CryptoKey>>();
}
I'm not sure that this is the best way, but it works!
It looks like your ICryptoKeyStore implementation may be attempting to store CryptoKey directly, but it's not a class that is compatible with the Entity framework (due to not have a public default constructor). Instead, define your own entity class for storing the data in CryptoKey and your ICryptoKeyStore is responsible to transition between the two data types for persistence and retrieval.
I am developing a sample Twitter app for Windows phone 7. In my code to display some details of user, used the following code.
void ShowProfile()
{
WebClient client = new WebClient();
client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(Profile_DownloadCompleted);
client.DownloadStringAsync(new Uri("http://api.twitter.com/1/users/show.xml?user_id=" + this.id));
}
void Profile_DownloadCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{ return; }
if (e.Result == null) MessageBox.Show("NUlllllllllll");
XElement Profile = XElement.Parse(e.Result);
var ProfileDetails = (from profile in Profile.Descendants("user")
select new UserProfile
{
UserName = profile.Element("screen_name").Value,
ImageSource = profile.Element("profile_image_url").Value,
Location = profile.Element("location").Value,
TweetsCount = profile.Element("statuses_count").Value,
}).FirstOrDefault();
LayoutRoot.DataContext = ProfileDetails;
}
Here, LayoutRoot is the Grid name. But the data binding doesn't work.
Infact, when kept a Break point it seems there is no data in the ProfileDetails object. But I could observe that e.Result contains the required data in the XML format.
Can any body figureout where I am going wrong??
Thanks in advance.
You have used XElement.Parse so Profile represents the single root <user> that API request would have returned. You are then trying to look for user elements inside it which of course makes no sense.
Try XDocument.Parse instead. Also does it really make any sense assigning a IEnumerable<UserProfile> to the data context when that list can only ever contain 1 entry?
I have a two related questions.
First:
I'm looking to do a full text search against a custom entity in Dynamics CRM 4.0. Has anyone done this before or know how to do it?
I know that I can build QueryExpressions with the web service and sdk but can I do a full text search with boolean type syntax using this method? As far as I can tell that won't do the trick.
Second:
Does anyone else feel limited with the searching abilities provided with Dynamics CRM 4.0? I know there are some 3rd pary search products out there but I haven't found one I like yet. Any suggestions would be appreciated.
Searching and filtering via the CRM SDK does take some time to get used to. In order to simulate full text search, you need to use nested FilterExpressions as your QueryExpression.Criteria. SDK page for nested filters The hardest part is figuring out how to build the parent child relationships. There's so much boolean logic going on that it's easy to get lost.
I had a requirement to build a "search engine" for one of our custom entities. Using this method for a complex search string ("one AND two OR three") with multiple searchable attributes was ugly. If you're interested though, I can dig it up. While it's not really supported, if you can access the database directly, I would suggest using SQL's full text search capabilities.
--
ok, here you go. I don't think you'll be able to copy paste this and fulfill your needs. my customer was only doing two to three key word searches and they were happy with the results from this. You can see what a pain it is to just do this in a simple search scenario. I basically puked out code until it was 'working'.
private FilterExpression BuildFilterV2(string[] words, string[] seachAttributes)
{
FilterExpression filter = new FilterExpression();
List<FilterExpression> allchildfilters = new List<FilterExpression>();
List<string> andbucket = new List<string>();
List<string> orBucket = new List<string>();
// clean up commas, quotes, etc
words = ScrubWords(words);
int index = 0;
while (index < words.Length)
{
// if current word is 'and' then add the next wrod to the ad bucket
if (words[index].ToLower() == "and")
{
andbucket.Add(words[index + 1]);
index += 2;
}
else
{
if (andbucket.Count > 0)
{
List<FilterExpression> filters = new List<FilterExpression>();
foreach (string s in andbucket)
{
filters.Add(BuildSingleWordFilter(s, seachAttributes));
}
// send existing and bucket to condition builder
FilterExpression childFilter = new FilterExpression();
childFilter.FilterOperator = LogicalOperator.And;
childFilter.Filters = filters.ToArray();
// add to child filter list
allchildfilters.Add(childFilter);
//new 'and' bucket
andbucket = new List<string>();
}
if (index + 1 < words.Length && words[index + 1].ToLower() == "and")
{
andbucket.Add(words[index]);
if (index + 2 <= words.Length)
{
andbucket.Add(words[index + 2]);
}
index += 3;
}
else
{
orBucket.Add(words[index]);
index++;
}
}
}
if (andbucket.Count > 0)
{
List<FilterExpression> filters = new List<FilterExpression>();
foreach (string s in andbucket)
{
filters.Add(BuildSingleWordFilter(s, seachAttributes));
}
// send existing and bucket to condition builder
FilterExpression childFilter = new FilterExpression();
childFilter.FilterOperator = LogicalOperator.And;
childFilter.Filters = filters.ToArray();
// add to child filter list
allchildfilters.Add(childFilter);
//new 'and' bucket
andbucket = new List<string>();
}
if (orBucket.Count > 0)
{
filter.Conditions = BuildConditions(orBucket.ToArray(), seachAttributes);
}
filter.FilterOperator = LogicalOperator.Or;
filter.Filters = allchildfilters.ToArray();
return filter;
}
private FilterExpression BuildSingleWordFilter(string word, string[] seachAttributes)
{
List<ConditionExpression> conditions = new List<ConditionExpression>();
foreach (string attr in seachAttributes)
{
ConditionExpression expr = new ConditionExpression();
expr.AttributeName = attr;
expr.Operator = ConditionOperator.Like;
expr.Values = new string[] { "%" + word + "%" };
conditions.Add(expr);
}
FilterExpression filter = new FilterExpression();
filter.FilterOperator = LogicalOperator.Or;
filter.Conditions = conditions.ToArray();
return filter;
}
private ConditionExpression[] BuildConditions(string[] words, string[] seachAttributes)
{
List<ConditionExpression> conditions = new List<ConditionExpression>();
foreach (string s in words)
{
foreach (string attr in seachAttributes)
{
ConditionExpression expr = new ConditionExpression();
expr.AttributeName = attr;
expr.Operator = ConditionOperator.Like;
expr.Values = new string[] { "%" + s + "%" };
conditions.Add(expr);
}
}
return conditions.ToArray();
}
Hm, that's a pretty interesting scenario...
You could certainly do a 'Like' query, and 'or' together the colums/attribute conditions you want included in the search. This seems to be how CRM does queries from the box above entity lists (and they're plenty fast). It looks like the CRM database has a full-text index, although exactly which columns are used to populate it is a bit foggy to me after a brief peek.
And remember LinqtoCRM for CRM query love (I started the project, sorry about the shameless plug).
Second - I can recommend "Global Search" by Akvelon which provides ability to search in all Custom Entities and attributes and Out of Box entities and attributes. Also they are using FTS for search in the attached documents contents. You can find more details in their official site: http://www.akvelon.com/Products/Dynamics%20CRM%20global%20Search/default.aspx
I would suggest utilizing the Dynamics CRM filtered views provided for you in the database. Then you can utilize all the power of native SQL to do any LIKE's or other logic you need. Plus, the filtered views are security trimmed, so you won't have to worry about users accessing records they do not have permission to.