I'm using ElarsticSearch 7.7 & NEST 7.7 and on my web page, I'm getting 9 search result documents per page. Even I'm showing the first 9 results on the page, I need to return some property values from all the results for side filtration on the web page.
Eg: if I'm searching "LapTop", my page will show 9 results on the first page. Also, I need to show all the "Manufactures" from all the search results. Not only manufacturers in the first-page result. Then customers can filter by manufacture not only display on the first page.
I have tried GlobalAggregation but it returns categories and manufactures only items in selected page.
public SearchResult Search(SearchType searchType, string searchQuery, int storeId, int pageNumber = 1, int pageSize = 12, IList<SearchFilter> requestFilter = null, decimal? priceFrom = 0, decimal? priceTo = 100000000, string sortBy = null, int totalCount = 0)
{
var queryContainer = new QueryContainer();
var sorts = new List<ISort>();
sorts.Add(new FieldSort { Field = "_score", Order = SortOrder.Descending });
switch (sortBy)
{
case "z-a":
sorts.Add(new FieldSort { Field = Field<ElasticIndexGroupProduct>(p => p.SortValue), Order = SortOrder.Descending });
break;
case "a-z":
sorts.Add(new FieldSort { Field = Field<ElasticIndexGroupProduct>(p => p.SortValue), Order = SortOrder.Ascending });
break;
}
var aggrigations = new AggregationDictionary
{
{"average_per_child", new
AverageAggregation("average_per_child",Field<ElasticIndexGroupProduct>(d => d.Price))},
{"max_per_child", new MaxAggregation("max_per_child",Field<ElasticIndexGroupProduct>(d => d.Price))},
{"min_per_child", new MinAggregation("min_per_child", Field<ElasticIndexGroupProduct>(d => d.Price))},
{
"globle_filter_aggrigation", new GlobalAggregation("globle_filter_aggrigation")
{
Aggregations =new AggregationDictionary
{
{"category_flow", new TermsAggregation("category_flow"){Field = Field<ElasticIndexGroupProduct>(p => p.CategoryFlow)} },
{"manufacturers", new TermsAggregation("manufacturers"){Field = Field<ElasticIndexGroupProduct>(p => p.Manufacturer)} }
}
}
}
};
var searchRequest = new SearchRequest<ElasticIndexGroupProduct>()
{
Profile = true,
From = (pageNumber - 1) * pageSize,
Size = pageSize,
Version = true,
Sort = sorts,
//Scroll = Time.MinusOne,
Aggregations = aggrigations
};
var multiMatch = new QueryStringQuery
{
Query = searchQuery,
Fields = GetSearchFields(searchType),
Boost = 1.1,
Name = "named_query",
DefaultOperator = Operator.Or,
Analyzer = "standard",
QuoteAnalyzer = "keyword",
AllowLeadingWildcard = true,
MaximumDeterminizedStates = 2,
Escape = true,
FuzzyPrefixLength = 2,
FuzzyMaxExpansions = 3,
FuzzyRewrite = MultiTermQueryRewrite.ConstantScore,
Rewrite = MultiTermQueryRewrite.ConstantScore,
Fuzziness = Fuzziness.Auto,
TieBreaker = 1,
AnalyzeWildcard = true,
MinimumShouldMatch = 2,
QuoteFieldSuffix = "'",
Lenient = true,
AutoGenerateSynonymsPhraseQuery = false
};
searchRequest.Query = new BoolQuery
{
Must = new QueryContainer[] { multiMatch },
Filter = new QueryContainer[] { queryContainer }
};
var searchResponse = _client.Search<ElasticIndexGroupProduct>(searchRequest);
var categoryFlowsGlobe = new List<string>();
var allAggregations = searchResponse.Aggregations.Global("globle_filter_aggrigation");
var categories = allAggregations.Terms("category_flow");
foreach (var aggItem in categories.Buckets)
{
if (!categoryFlowsGlobe.Any(x => x == aggItem.Key))
{
categoryFlowsGlobe.Add(aggItem.Key);
}
}
}
This is the exact use case for Post filter - to run a search request that returns hits and aggregations, then to apply filtering to the hits after aggregations have been calculated.
For Manufacturers, these can be retrieved with a terms aggregation in the search request - you can adjust the size on the aggregation if you need to return all manufacturers, otherwise you might decide to return only the top x.
Related
dears,
i have an API working with ASP.Net Core 3.1 posting orders
i want to post order head and get all items from another api in cart items and post it in order items my code as below
[HttpPost("addOrderHead")]
public async Task<ActionResult<OrderDto>> Posting(OrderDto dto)
{
try
{
if (dto == null)
{
return BadRequest(ModelState);
}
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var mappedEntities = _mapper.Map<Order>(dto);
_orderRepository.Add(mappedEntities);
if (await _orderRepository.Save())
{
int id = mappedEntities.OrderID;
var cartItems = await _cartItemRepository.GetCartItems(mappedEntities.ApplicationUserId);
var cartDto = new CartItemDto();
foreach(var item in cartItems)
{
cartDto.ItemID = item.ItemID;
cartDto.ItemLookupCode = item.ItemLookupCode;
cartDto.CategoryID = item.CategoryID;
cartDto.DepartmentID = item.DepartmentID;
cartDto.itemDescription = item.itemDescription;
cartDto.SubDescription3 = item.SubDescription3;
cartDto.Quantity = item.Quantity;
cartDto.Weight = item.Weight;
cartDto.SnapShotPrice = item.SnapShotPrice;
cartDto.StoreId = item.StoreId;
cartDto.barcode = item.barcode;
cartDto.Email = item.Email;
cartDto.ItemImage = item.ItemImage;
};
var items = new OrderItems()
{
OrderId = id,
ItemID = cartDto.ItemID,
ItemLookupCode = cartDto.ItemLookupCode,
CategoryID = cartDto.CategoryID,
DepartmentID = cartDto.DepartmentID,
itemDescription = cartDto.itemDescription,
SubDescription3 = cartDto.SubDescription3,
Quantity = cartDto.Quantity,
Weight = cartDto.Weight,
SnapShotPrice = cartDto.SnapShotPrice,
StoreId = cartDto.StoreId,
barcode = cartDto.barcode,
Email = cartDto.Email,
ItemImage = cartDto.ItemImage,
};
_orderItemsRepository.Add(items);
await _orderItemsRepository.Save();
return Ok(id);
}
return BadRequest(ModelState);
}
catch (Exception ex)
{
return StatusCode(StatusCodes.Status500InternalServerError, ex.InnerException.Message);
}
}
every time i run this api order header added successfully and order items add first item only
which cart items return with array of items ,
can any one help me in that ,
You need to put Add (and maybe .Save()) inside the foreach:
var cartItems = await _cartItemRepository.GetCartItems(mappedEntities.ApplicationUserId);
foreach(var item in cartItems)
{
var cartDto = new CartItemDto(); // inside foreach
cartDto.ItemID = item.ItemID;
....
var item = new OrderItems() // one item - not: items
{
OrderId = id,
ItemID = cartDto.ItemID,
...
ItemImage = cartDto.ItemImage,
};
_orderItemsRepository.Add(item); // add item before moving to next item.
}
await _orderItemsRepository.Save();
BTW. I'm not sure why you need cartDto; I think you can eliminate it:
var cartItems = await _cartItemRepository.GetCartItems(mappedEntities.ApplicationUserId);
foreach(var item in cartItems)
{
var item = new OrderItems() // one item - not: items
{
OrderId = id,
ItemID = item.ItemID,
...
ItemImage = item.ItemImage,
};
_orderItemsRepository.Add(item); // add item before moving to next item.
}
await _orderItemsRepository.Save();
The code is not correct.In the below line you it should be List instead of object
var cartItems = await _cartItemRepository.GetCartItems(mappedEntities.ApplicationUserId);
var cartDtoList = new List<CartItemDto>();
foreach(var item in cartItems)
{
carDto carDto= new CarDto();
cartDto.ItemID = item.ItemID;
cartDto.ItemLookupCode = item.ItemLookupCode;
cartDto.CategoryID = item.CategoryID;
cartDto.DepartmentID = item.DepartmentID;
cartDto.itemDescription = item.itemDescription;
cartDto.SubDescription3 = item.SubDescription3;
cartDto.Quantity = item.Quantity;
cartDto.Weight = item.Weight;
cartDto.SnapShotPrice = item.SnapShotPrice;
cartDto.StoreId = item.StoreId;
cartDto.barcode = item.barcode;
cartDto.Email = item.Email;
cartDto.ItemImage = item.ItemImage;
carDtoList.Add(carDto)
};
Similarly the orderItems will also be list.
The other simplest solution is to put all the things inside foreach loop like this
foreach(var item in cartItems)
{
cartDto.ItemID = item.ItemID;
cartDto.ItemLookupCode = item.ItemLookupCode;
cartDto.CategoryID = item.CategoryID;
cartDto.DepartmentID = item.DepartmentID;
cartDto.itemDescription = item.itemDescription;
cartDto.SubDescription3 = item.SubDescription3;
cartDto.Quantity = item.Quantity;
cartDto.Weight = item.Weight;
cartDto.SnapShotPrice = item.SnapShotPrice;
cartDto.StoreId = item.StoreId;
cartDto.barcode = item.barcode;
cartDto.Email = item.Email;
cartDto.ItemImage = item.ItemImage;
var items = new OrderItems()
{
OrderId = id,
ItemID = cartDto.ItemID,
ItemLookupCode = cartDto.ItemLookupCode,
CategoryID = cartDto.CategoryID,
DepartmentID = cartDto.DepartmentID,
itemDescription = cartDto.itemDescription,
SubDescription3 = cartDto.SubDescription3,
Quantity = cartDto.Quantity,
Weight = cartDto.Weight,
SnapShotPrice = cartDto.SnapShotPrice,
StoreId = cartDto.StoreId,
barcode = cartDto.barcode,
Email = cartDto.Email,
ItemImage = cartDto.ItemImage,
};
_orderItemsRepository.Add(items);
await _orderItemsRepository.Save();
return Ok(id);
}
I have this piece of code like this:
var options = new DynamoDBOperationConfig
{
ConditionalOperator = ConditionalOperatorValues.Or,
OverrideTableName = nameTable,
ConsistentRead = true
};
new QueryOperationConfig()
{
IndexName = indexName,
Filter = queryFilter,
Select = SelectValues.Count
};
result = context.FromQueryAsync<TEntity>(queryConfig, options).GetRemainingAsync().Result;
as per the documentation, it should return just the count of values that match the filter, at least, the piece of code in the SelectValues class says that
//
// Summary:
// An enumeration of all supported Select values for Query and Scan. Value of Count
// will force service to return the number of items, not the items themselves.
but result is always an empty list; how can i make the count work ?
If you are still looking for the answer, this is the solution:
new QueryOperationConfig()
{
IndexName = indexName,
Filter = queryFilter,
Select = SelectValues.Count,
ConsistentRead = true
};
var table = context.GetTargetTable<TEntity>();
var search = table.Query(queryConfig);
result = search.Count;
Having ConsistentRead set to true will cause it to give you real time updates when the table is updated.
It's not working on Document level...
You can try to do this in low level model.
int count = 0;
Dictionary<string, AttributeValue> lastKey = null;
do
{
var request = new QueryRequest
{
TableName = "tableNmae",
IndexName = "indexName",
KeyConditionExpression = "ID= :v_ID",
ExpressionAttributeValues = new Dictionary<string, AttributeValue>
{
{
":v_ID",
new AttributeValue
{
N = "1"
}
}
},
ConsistentRead = false,
Select = Select.COUNT,
ExclusiveStartKey = lastKey
};
var respone = await tableClient.QueryAsync(request);
count += respone.Count;
lastKey = respone.LastEvaluatedKey;
} while (lastKey != null && lastKey.Count != 0);
I have used linq to store data, below is the code:
var result = (dynamic)null;
var serviceData = (dynamic)null;
var userData = (dynamic)null;
/****Linq 1*****/
serviceData= dtPasscode.AsEnumerable().Select(m => new
{
ACCOUNT_ID = intAccountId,
SUB_ACC_ID = m.Field<string>("ACCOUNT_ID_ALIAS")
});
/**Linq 2**/
userData = DisplyCustomerDetails(Convert.ToInt64(strSubAccountID));
result = serviceData.Concat(userData);
And another linq through function:
/**Function**/
System.Data.EnumerableRowCollection DisplyCustomerDetails(Int64 intAccountId)
{
var result = (dynamic)null;
/** Data Display if no service avaiable **/
IAccount_BL objAccount_BL = new Account_BL();
Customer objCustomer = new Customer();
DataTable dtCustomer = null;
int intErrorCount = 0;
objCustomer.Account_Id = Convert.ToInt64(intAccountId);
dtCustomer = objAccount_BL.GetCustomerDetails(objCustomer, ref intErrorCount);
objAccount_BL = null;
objCustomer = null;
if (intErrorCount == 0)
{
if (dtCustomer != null)
{
if (dtCustomer.Rows.Count > 0)
{
result = dtCustomer.AsEnumerable().Select(m => new
{
ACCOUNT_ID = intAccountId,
SUB_ACC_ID = m.Field<string>("ACCOUNT_ID_ALIAS")
});
}
}
}
return result;
}
I wanted to join both the result of Linq1 & Linq2, I tired Concat & Union, getting below error
'System.Data.EnumerableRowCollection<<>f__AnonymousTypea>' does not contain a definition for 'Concat'
To Concat both enumerables must of the same class; you cannot use anonymous classes. Define a class that has the two fields and change the code to Select them.
Also, don't use ... = (dynamic) null; just assign the variable directly
var serviceData= dtPasscode ...
var userData = DisplyCustomerDetails ...
var result = serviceData.Concat(userData);
I have a linq query like below:
public IQueryable<vmEmp> GetEmp(int crewid)
{
var dt = new EmpEntities();
var e = from t in dt.tblEmp
where (t.CrewId == crewid)
select new vmEmp
{
Id = -1,
Crew = t.crewid,
Name = t.Name,
Address = t.Address
};
return e;
}
I hope can make the Id auto decrease by 1 till end of the employee.
like first's Id is -1, second's is -2, third is -3 ...
How to do that here? Thanks a lot
If this was LINQ-to-objects, you could use this overload of Select:
var dt = new EmpEntities();
var e = dt.tblEmp
.Where(t => t.CrewId == crewid)
.Select((t,index) => new vmEmp
{
Id = -index - 1,
Crew = t.crewid,
Name = t.Name,
Address = t.Address
});
But EF doesn't suport this, because the indexer can't be translated into SQL. So you need a work-around:
var dt = new EmpEntities();
var e = dt.tblEmp
.Where(t => t.CrewId == crewid)
.Select(t => new
{
Id = 0,
Crew = t.crewid,
Name = t.Name,
Address = t.Address
}
.AsEnumerable() // Continue in memory
.Select((t,index) => new vmEmp
{
Id = -index - 1,
Crew = t.Crew,
Name = t.Name,
Address = t.Address
});
Side note: it's recommended to put dt in a using construct.
Use a counter variable and decrease it for every record while you project it to your custom POCO.
public IQueryable<vmEmp> GetEmp(int crewid)
{
int counter=0;
var dt = new EmpEntities();
//load the items to a list of anonymous type
var eList = from t in dt.tblEmp
where (t.CrewId == crewid)
.Select(s=>
new { Id = 0,
Crew = s.crewid,
Name = s.Name,
Address = s.Address
}).ToList();
var e=eList.Select(x=> new vmEmp
{
Id = --counter,
Crew = x.Crew,
Name = x.Name,
Address = x.Address
});
return e.AsQueryable();
}
I'm not sure if this is the right way but I have a web service that returns json. Now I wanted to set a conditional to omit rows returned that have a value of false in cell appearInShowcase. Most of the code is pretty straight forward what it does but the cell that has a true false value is appearInShowcase which is in a table photo. In the ms sql database the appearInShowcase is of type ntext.
public List<wsGalleryPhotos> GetGalleryPhotos(int collectionID)
{
photoDataContext dc = new photoDataContext();
List<wsGalleryPhotos> results = new List<wsGalleryPhotos>();
System.Globalization.CultureInfo ci = System.Globalization.CultureInfo.GetCultureInfo("en-US");
foreach (photo photo in dc.photos.Where(s => s.collectionID == collectionID))
{
if(photo.appearInShowcase == "true")
{
results.Add(new wsGalleryPhotos()
{
photoID = photo.photoID,
collectionID = Convert.ToInt32(photo.collectionID),
name = photo.name,
description = photo.description,
filepath = photo.filepath,
thumbnail = photo.thumbnail
});
}
}
return results;
}
if you want to add a condition, you should do it like this:
public List<wsGalleryPhotos> GetGalleryPhotos(int collectionID)
{
photoDataContext dc = new photoDataContext();
List<wsGalleryPhotos> results = new List<wsGalleryPhotos>();
System.Globalization.CultureInfo ci = System.Globalization.CultureInfo.GetCultureInfo("en-US");
results = dc.photos.Where(s => s.collectionID == collectionID && s.appearInShowcase == "true")
.Select(s => new wsGalleryPhotos
{
photoID = s.photoID,
collectionID = collectionID,
name = s.name,
description = s.description,
filepath = s.filepath,
thumbnail = s.thumbnail
}).ToList();
return results;
}