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sum for decimal fields, untested.

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Alexandre SPIESER
2019-01-02 23:43:37 +00:00
parent 2d866d966c
commit eaa90d67f5
2 changed files with 53 additions and 16 deletions
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MongoDbGenericRepository/BaseMongoDbRepository.Maths.cs
+37
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@@ -0,0 +1,37 @@
using MongoDB.Driver;
using MongoDB.Driver.Linq;
using MongoDbGenericRepository.Models;
using System;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
namespace MongoDbGenericRepository
{
/// <summary>
/// The base Repository, it is meant to be inherited from by your custom custom MongoRepository implementation.
/// Its constructor must be given a connection string and a database name.
/// </summary>
public abstract partial class BaseMongoRepository : ReadOnlyMongoRepository, IBaseMongoRepository
{
/// <summary>
/// Sums the values of a selected field for a given filtered collection of documents.
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="selector">The field you want to sum.</param>
/// <param name="partitionKey">The partition key of your document, if any.</param>
public virtual async Task<decimal> SumByAsync<TDocument>(Expression<Func<TDocument, bool>> filter,
Expression<Func<TDocument, decimal>> selector,
string partitionKey = null)
where TDocument : IDocument
{
var collection = string.IsNullOrEmpty(partitionKey) ? GetCollection<TDocument>() : GetCollection<TDocument>(partitionKey);
return await collection.AsQueryable()
.Where(filter)
.SumAsync(selector);
}
}
}
MongoDbGenericRepository/BaseMongoDbRepository.cs
+12 -12
View File
@@ -822,7 +822,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -840,7 +840,7 @@ namespace MongoDbGenericRepository
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -858,7 +858,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual TProjection ProjectOne<TDocument, TProjection>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -876,7 +876,7 @@ namespace MongoDbGenericRepository
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual TProjection ProjectOne<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -894,7 +894,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -912,7 +912,7 @@ namespace MongoDbGenericRepository
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -930,7 +930,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="projection">The projection expression.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual List<TProjection> ProjectMany<TDocument, TProjection>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
@@ -996,7 +996,7 @@ namespace MongoDbGenericRepository
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TGroupKey">The type of the grouping criteria.</typeparam>
/// <typeparam name="TProjection">The type of the projected group.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="selector">The grouping criteria.</param>
/// <param name="projection">The projected group result.</param>
/// <param name="partitionKey">The partition key of your document, if any.</param>
@@ -1021,7 +1021,7 @@ namespace MongoDbGenericRepository
/// Asynchronously returns a paginated list of the documents matching the filter condition.
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="skipNumber">The number of documents you want to skip. Default value is 0.</param>
/// <param name="takeNumber">The number of documents you want to take. Default value is 50.</param>
/// <param name="partitionKey">An optional partition key.</param>
@@ -1036,7 +1036,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="skipNumber">The number of documents you want to skip. Default value is 0.</param>
/// <param name="takeNumber">The number of documents you want to take. Default value is 50.</param>
/// <param name="partitionKey">An optional partition key.</param>
@@ -1053,7 +1053,7 @@ namespace MongoDbGenericRepository
/// GetAndUpdateOne with filter
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="update"></param>
/// <param name="options"></param>
/// <returns></returns>
@@ -1067,7 +1067,7 @@ namespace MongoDbGenericRepository
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <param name="filter"></param>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="update"></param>
/// <param name="options"></param>
/// <returns></returns>