I have an existing document in mongo db with certain properties. When i am trying to update this document with a document with the same id but having more properties it is not updating it. I am using mongo db driver version 2.4.4
Following is the existing document in my db
{
"_id" : "1234",
"AccountNumber" : "3453535345354",
"Name" : "new1",
"PhoneNumber" : "34534535353534543",
"ETag" : "6ba32e6e-3808-41f5-9b28-0ea882d9c629",
"Id" : "1234"
}
Now when i am trying to update/ replace this document with the following document it does not work:
{
"AccountNumber": "3453535345354",
"Name":"new1",
"PhoneNumber":"34534535353534543",
"TempProperty":"something new",
"ETag" : "6ba32e6e-3808-41f5-9b28-0ea882d9c629",
"Id" : "1234",
"_id" : "1234"
}
Following is the C# code for my upsert method:
public async Task UpsertDocument(string collectionId, string documentId, BsonDocument item)
{
var collection = database.GetCollection<BsonDocument>(collectionId);
var initialCorrelationId = item["ETag"].AsString;
item["ETag"] = Guid.NewGuid().ToString();
var builders = Builders<BsonDocument>.Filter;
var filter = builders.Eq(x => x["Id"], documentId) & builders.Eq(x => x["ETag"], initialCorrelationId);
var options = new FindOneAndReplaceOptions<BsonDocument, BsonDocument>
{
ReturnDocument = ReturnDocument.Before,
IsUpsert = true
};
try
{
item["Id"] = documentId;
item["_id"] = documentId;
await collection.FindOneAndReplaceAsync(filter, item, options);
}
catch (MongoCommandException ex) when (ex.Code == 11000)
{
throw new ConcurrencyException(
$"Error upserting item with id {documentId} and etag {item["Etag"]}{Environment.NewLine}{item.ToJson()}");
}
}
Any help would be much appreciated.
Assuming you have a class as follows:
public class Thing
{
public ObjectId Id { get; set; }
public string AccountNumber { get; set; }
public string Name { get; set; }
public string PhoneNumber { get; set; }
public string ETag { get; set; }
public string SecondId { get; set; }
}
The following code does what you want:
var context = new Context();
var tempProperty = "newValue";
var id = "1234"; // This should be unique
var builder = Builders<Thing>.Filter;
var filter = builder.Eq(x => x.SecondId, id);
var update = Builders<Thing>.Update
.Set("TempProperty", tempProperty);
context.ThingCollection.UpdateOne(filter, update, new UpdateOptions() {IsUpsert = true});
I just renamed Id to SecondId.
Related
I am trying to get results from elasticsearch on a predefined range of dates using NEST api but i dont manage. This example code i am trying to retrieve a week of data but it is ignoring my date Filter and returning older data than my initial date.
Thanks in advance for the help!
var node = new Uri("http://localhost:9200");
var settings = new ConnectionSettings(node);
var client = new ElasticClient(settings);
settings.DefaultIndex("wholelog-2017.04*");
client.CreateIndex("wholelog-2017.04*",
create => create.Mappings(
mappings => mappings.Map<LogLine>(type =>
type.AutoMap()
)
));
DateTime InitDate = DateTime.Now.AddDays(-7);
var filterClauses = new List<QueryContainer>();
filterClauses.Add(new DateRangeQuery
{
Field = new Field("logTime"),
LessThanOrEqualTo = DateTime.Now,
GreaterThanOrEqualTo = InitDate
});
var searchRequest = new SearchRequest<LogLine>()
{
Size = 10000,
From = 0,
Scroll = "1m",
Query = new BoolQuery
{
Filter = filterClauses
}
};
var searchResult = client.Search<LogLine>(searchRequest);
[ElasticsearchType(Name="logLine")]
public class LogLine
{
public string Message {get;set;}
public DateTime logTime {get;set;}
public string type {get;set;}
public string logServer {get;set;}
}
logstash config file
output {
elasticsearch{
hosts => "localhost"
#user => ####
#password => ####
index => "wholelog-%{+YYYY.MM.dd}"
}
}
I assume that you didn't explicitly put your mapping and just started adding documents to your index. Try to create a new index like this
client.CreateIndex(indexName,
create => create.Mappings(
mappings => mappings.Map<LogLine>(
type => type.AutoMap()
)
)
);
And use DateTime for your field. DateMath is intended for building search queries
[ElasticsearchType(Name = "logLine")]
public class LogLine
{
public string Message { get; set; }
public DateTime logTime { get; set; }
public string type { get; set; }
public string logServer { get; set; }
}
After explicitly putting your mapping try to add docs and search against new index.
As the title is already indicating, I am trying to index MS Word documents and making a full text search within.
I have seen several examples, but I am not able to figure out what I am doing incorrectly.
Relevant Code:
[ElasticsearchType(Name = "AttachmentDocuments")]
public class Attachment
{
[String(Name = "_content")]
public string Content { get; set; }
[String(Name = "_content_type")]
public string ContentType { get; set; }
[String(Name = "_name")]
public string Name { get; set; }
public Attachment(Task<File> file)
{
Content = file.Result.FileContent;
ContentType = file.Result.FileType;
Name = file.Result.FileName;
}
}
The "Content" property above is set to "file.Result.FileContent" in the constructor. The "Content" property is a base64 string.
public class Document
{
[Number(Name = "Id")]
public int Id { get; set; }
[Attachment]
public Attachment File { get; set; }
public String Title { get; set; }
}
Below is the method for indexing documents to elasticsearch database.
public void IndexDocument(Attachment attachmentDocument)
{
// Create the index if it does not already exist
var indexExists = _client.IndexExists(new IndexExistsRequest(ElasticsearchIndexName));
if (!indexExists.Exists)
{
var indexDescriptor =
new CreateIndexDescriptor(new IndexName {Name = ElasticsearchIndexName}).Mappings(
ms => ms.Map<Document>(m => m.AutoMap()));
_client.CreateIndex(indexDescriptor);
}
var doc = new Document()
{
Id = 1,
Title = "Test",
File = attachmentDocument
};
_client.Index(doc);
}
Based on the code above, the document get indexed into the correct index(Screenshot from Elasticsearch host - Searchly):
Searchly Screenshot
The content in the file is : "VCXCVXCVXCVXCVXVXCVXCV" and with the following query I get zero hits in return:
QueryContainer queryContainer = null;
queryContainer |= new MatchQuery()
{
Field = "file",
Query = "VCXCVXCVXCVXCVXVXCVXCV"
};
var searchResult =
await _client.LowLevel.SearchAsync<string>(ApplicationsIndexName, "document", new SearchRequest()
{
From = 0,
Size = 10,
Query = queryContainer,
Aggregations = GetAggregations()
});
I would appericiate if someone could hint me what I am doing incorrectly or should look into?
Providing screenshot of mapping in my Elasticsearch database:
Elasticsearch - Mapping
Because you refer to wrong field. Field should be file.content
queryContainer |= new MatchQuery()
{
Field = "file.content",
Query = "VCXCVXCVXCVXCVXVXCVXCV"
};
I've a class with following structure:
public class BestWayContext
{
public Preference Preference { get; set; }
public DateTime DueDate { get; set; }
public List<ServiceRate> ServiceRate { get; set; }
}
public class ServiceRate
{
public int Id { get; set; }
public string Carrier { get; set; }
public string Service { get; set; }
public decimal Rate { get; set; }
public DateTime DeliveryDate { get; set; }
}
and I've dynamic linq expression string
"Preference != null && ServiceRate.Any(Carrier == Preference.Carrier)"
and I want to convert above string in Dynamic LINQ as follows:
var expression = System.Linq.Dynamic.DynamicExpression.ParseLambda<BestWayContext, bool>(condition, null).Compile();
But it showing following error:
Please correct me what am I doing wrong?
It looks like you wanted to do something like this:
var bwc = new BestWayContext
{
Preference = new Preference { Carrier = "test" },
DueDate = DateTime.Now,
ServiceRate = new List<ServiceRate>
{
new ServiceRate
{
Carrier = "test",
DeliveryDate = DateTime.Now,
Id = 2,
Rate = 100,
Service = "testService"
}
}
};
string condition = "Preference != null && ServiceRate.Any(Carrier == #0)";
var expression = System.Linq.Dynamic.DynamicExpression.ParseLambda<BestWayContext, bool>(condition, bwc.Preference.Carrier).Compile();
bool res = expression(bwc); // true
bwc.ServiceRate.First().Carrier = "test1"; // just for testing this -> there is only one so I've used first
res = expression(bwc); // false
You want to use Preference which belong to BestWayContext but you didn't tell the compiler about that. If i write your expression on Linq i will do as follows:
[List of BestWayContext].Where(f => f.Preference != null && f.ServiceRate.Where(g => g.Carrier == f.Preference.Carrier)
);
As you see i specified to use Preference of BestWayContext.
I'm having hard time understanding how to convert an Enum value to it's corresponding name. My model is as follows:
public class CatalogRule
{
public int ID { get; set; }
[Display(Name = "Catalog"), Required]
public int CatalogID { get; set; }
[Display(Name = "Item Rule"), Required]
public ItemType ItemRule { get; set; }
public string Items { get; set; }
[Display(Name = "Price Rule"), Required]
public PriceType PriceRule { get; set; }
[Display(Name = "Value"), Column(TypeName = "MONEY")]
public decimal PriceValue { get; set; }
[Display(Name = "Exclusive?")]
public bool Exclude { get; set; }
}
public enum ItemType
{
Catalog,
Category,
Group,
Item
}
public enum PriceType
{
Catalog,
Price_A,
Price_B,
Price_C
}
A sample result from .net API:
[
{
$id: "1",
$type: "XYZ.CMgr.Models.CatalogRule, XYZ.CMgr",
ID: 1,
CatalogID: 501981,
ItemRule: 0,
Items: "198",
PriceRule: 1,
PriceValue: 0.5,
Exclude: false
},
{
$id: "2",
$type: "XYZ.CMgr.Models.CatalogRule, XYZ.CMgr",
ID: 2,
CatalogID: 501981,
ItemRule: 2,
Items: "9899",
PriceRule: 2,
PriceValue: 10.45,
Exclude: false
}
]
So in this example, I need to get Catalog for results[0].ItemRule & Price A for results[0].PriceRule. How can I accomplish this in BreezeJS??
This is easy to do in ASP.NET Web API, because it is an out-of-box feature in the default JSON serializer (Json.NET).
To see strings instead of enum numbers in JSON, just add an instance of StringEnumConverter to JSON serializer settings during app init:
var jsonFormatter = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
jsonFormatter.SerializerSettings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
UPDATE: Yep, you right, this is not help with Breeze.js. Ok, you can anyway do a little magic to make enums work like strings (while new version with fix is not released).
Create a custom ContextProvider which updates all integer enum values in metadata to strings. Here it is:
public class StringEnumEFContextProvider<T> : EFContextProvider<T>
where T : class, new()
{
protected override string BuildJsonMetadata()
{
XDocument xDoc;
if (Context is DbContext)
{
xDoc = GetCsdlFromDbContext(Context);
}
else
{
xDoc = GetCsdlFromObjectContext(Context);
}
var schemaNs = "http://schemas.microsoft.com/ado/2009/11/edm";
foreach (var enumType in xDoc.Descendants(XName.Get("EnumType", schemaNs)))
{
foreach (var member in enumType.Elements(XName.Get("Member", schemaNs)))
{
member.Attribute("Value").Value = member.Attribute("Name").Value;
}
}
return CsdlToJson(xDoc);
}
}
And use it instead of EFContextProvider in your Web API controllers:
private EFContextProvider<BreezeSampleContext> _contextProvider =
new StringEnumEFContextProvider<BreezeSampleContext>();
This works well for me with current Breeze.js version (1.1.3), although I haven't checked other scenarios, like validation...
UPDATE: To fix validation, change data type for enums in breeze.[min|debug].js, manually (DataType.fromEdmDataType function, dt = DataType.String; for enum) or replace default function during app init:
breeze.DataType.fromEdmDataType = function (typeName) {
var dt = null;
var parts = typeName.split(".");
if (parts.length > 1) {
var simpleName = parts[1];
if (simpleName === "image") {
// hack
dt = DataType.Byte;
} else if (parts.length == 2) {
dt = DataType.fromName(simpleName);
if (!dt) {
if (simpleName === "DateTimeOffset") {
dt = DataType.DateTime;
} else {
dt = DataType.Undefined;
}
}
} else {
// enum
dt = DataType.String; // THIS IS A FIX!
}
}
return dt;
};
Dirty, dirty hacks, I know... But that's the solution I found
There will be a new release out in the next few days where we "change" breeze's enum behavior ( i.e. break existing code with regards to enums). In the new release enums are serialized and queried by their .NET names instead of as integers. I will post back here when the new release is out.
I been practicing with EF Code First, SQL Express, and ASP.Net MVC3.
When I run the website first the correct tables are generated by the FooInitializer and Student and Image are populated but for some reason the join table (StudentImages) is not being populated.
What could be the issue?
Tables: Student, Image, and StudentImages
public class Student
{
public int Id { get; set; }
public string Name { get; set; }
public virtual ICollection<Image> Images { get; set; }
}
public class Image
{
public int Id { get; set; }
public string Filename { get; set; }
public string Extension { get; set; }
public virtual ICollection<Student> Students { get; set; }
}
public class FooInitializer : DropCreateDatabaseIfModelChanges<DBContext>
{
protected override void Seed(DBContext context)
{
var students = new List<Student> {
new Student { Id = 1, Name = "John" },
new Student { Id = 2, Name = "Jane" }
};
students.ForEach(s => context.Students.Add(s));
context.SaveChanges();
var images = new List<Image> {
new Image { Id = 1, Filename = "IMG_4596.JPG", Extension = ".jpg" },
new Image { Id = 2, Filename = "IMG_4600.JPG", Extension = ".jpg" }
};
images.ForEach(i => context.Images.Add(i));
students[0].Images.Add(images[0]);
context.SaveChanges();
}
}
From what I can tell your Image class does not have a reference to the StudentID. Try adding:
public int StudentID { get; set; }
to the Image class maybe?
Also having an ICollection would mean that one image could have multiple students - is this correct? Maybe it should be a public virtual Student Student {...}
EDIT: Also I found this, with a many to many relationship (if thats what you need):
In your OnModelCreating() Method:
modelBuilder.Entity<Student>()
.HasMany(c => c.Images).WithMany(i => i.Students)
.Map(t => t.MapLeftKey("StudentId")
.MapRightKey("ImageID")
.ToTable("StudentImages"));
taken from this link that states:
A many-to-many relationship between the Instructor and Course
entities. The code specifies the table and column names for the join
table. Code First can configure the many-to-many relationship for you
without this code, but if you don't call it, you will get default
names such as InstructorInstructorID for the InstructorID column.
EDIT: Here is the code I used the other night, with my implementation of the code first MVC site:
var users = new List<User>
{
new User { UserID = new Guid(), Email = "me#me.com", LastOnline = DateTime.Now, Password = "pword", RegistrationDate = DateTime.Now, SecurityAnswer = "me", SecurityQuestion = "who?", Roles = new List<Role>() },
};
users.ForEach(s => context.Users.Add(s));
context.SaveChanges();
var roles = new List<Role>
{
new Role { RoleID = "Admin", Description = "Administration Users", Users = new List<User>() }
};
roles.ForEach(r => context.Roles.Add(r));
users[0].Roles.Add(roles[0]);
context.SaveChanges();
var userLicense = new List<UserLicense>
{
new UserLicense { AddDateTime = DateTime.Now, LicenseType = "Farmer", Manufacturer = "Motorola", Model = "Droid", PhoneIdentifier = "c0e4223a910f", UserID = users[0].UserID, User = new User() }
};
userLicense[0].User = users[0];
userLicense.ForEach(u => context.UserLicenses.Add(u));
context.SaveChanges();
userLicense[0].User = users[0];
context.SaveChanges();
Notice in each instantiated item, I am also instantiating a new referenced item within the parent object.
EDIT:
Ok try this:
var students = new List<Student> {
new Student { Id = 1, Name = "John", Images = new List<Image>() },
new Student { Id = 2, Name = "Jane", Images = new List<Image>() }
};
students.ForEach(s => context.Students.Add(s));
context.SaveChanges();
var images = new List<Image> {
new Image { Id = 1, Filename = "IMG_4596.JPG", Extension = ".jpg", Students = new List<Student>() },
new Image { Id = 2, Filename = "IMG_4600.JPG", Extension = ".jpg", Students = new List<Student>() }
};
images.ForEach(i => context.Images.Add(i));
students[0].Images.Add(images[0]);
students[1].Images.Add(images[1]);
context.SaveChanges();
Try adding this before saving changes for each student:
foreach (Image i in s1.Images)
context.ObjectStateManager.ChangeObjectState(i, System.Data.EntityState.Added);
Also try with System.Data.EntityState.Modified.
Hope this works...