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LinqIndexesFromClient.cs
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LinqIndexesFromClient.cs
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//-----------------------------------------------------------------------
// <copyright file="LinqIndexesFromClient.cs" company="Hibernating Rhinos LTD">
// Copyright (c) Hibernating Rhinos LTD. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Linq.Expressions;
using Raven.Abstractions.Indexing;
using Raven.Json.Linq;
using Raven.Client.Document;
using Raven.Client.Indexes;
using Raven.Database.Json;
using Raven.Database.Linq;
using Xunit;
namespace Raven.Tests.Indexes
{
public class LinqIndexesFromClient
{
[Fact]
public void Convert_select_many_will_keep_doc_id()
{
IndexDefinition indexDefinition = new IndexDefinitionBuilder<Order>
{
Map = orders => from order in orders
from line in order.OrderLines
select new { line.ProductId }
}.ToIndexDefinition(new DocumentConvention());
var generator = new DynamicViewCompiler("test", indexDefinition, ".")
.GenerateInstance();
var results = generator.MapDefinitions[0](new[]
{
GetDocumentFromString(
@"
{
'@metadata': {'Raven-Entity-Name': 'Orders', '@id': 1},
'OrderLines': [{'ProductId': 2}, {'ProductId': 3}]
}"),
GetDocumentFromString(
@"
{
'@metadata': {'Raven-Entity-Name': 'Orders', '@id': 2},
'OrderLines': [{'ProductId': 5}, {'ProductId': 4}]
}")
}).Cast<object>().ToArray();
foreach (var result in results)
{
Assert.NotNull(TypeDescriptor.GetProperties(result).Find("__document_id", true));
}
}
public static dynamic GetDocumentFromString(string json)
{
return JsonToExpando.Convert(RavenJObject.Parse(json));
}
[Fact]
public void CanCompileComplexQuery()
{
var indexDefinition = new IndexDefinitionBuilder<Person>()
{
Map = people => from person in people
from role in person.Roles
where role == "Student"
select new { role }
}.ToIndexDefinition(new DocumentConvention());
new DynamicViewCompiler("test", indexDefinition, ".")
.GenerateInstance();
}
public class Person
{
public string[] Roles { get; set; }
}
[Fact]
public void Convert_simple_query()
{
IndexDefinition generated = new IndexDefinitionBuilder<User, Named>
{
Map = users => from user in users
where user.Location == "Tel Aviv"
select new { user.Name },
Stores = { { user => user.Name, FieldStorage.Yes } }
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition
{
Stores = { { "Name", FieldStorage.Yes } },
Map = @"docs.Users.Where(user => user.Location == ""Tel Aviv"").Select(user => new {
Name = user.Name
})"
};
Assert.Equal(original.Map, generated.Map);
}
[Fact]
public void Convert_using_id()
{
IndexDefinition generated = new IndexDefinitionBuilder<User, Named>
{
Map = users => from user in users
where user.Location == "Tel Aviv"
select new { user.Name, user.Id },
Stores = { { user => user.Name, FieldStorage.Yes } }
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition
{
Stores = { { "Name", FieldStorage.Yes } },
Map = @"docs.Users.Where(user => user.Location == ""Tel Aviv"").Select(user => new {
Name = user.Name,
Id = user.__document_id
})"
};
Assert.Equal(original.Map, generated.Map);
Assert.Equal(original, generated);
}
[Fact]
public void Convert_simple_query_with_not_operator_and_nested_braces()
{
IndexDefinition generated = new IndexDefinitionBuilder<User, Named>
{
Map = users => from user in users
where !(user.Location == "Te(l) (A)viv")
select new {user.Name},
Stores = {{user => user.Name, FieldStorage.Yes}}
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition
{
Stores = {{"Name", FieldStorage.Yes}},
Map = @"docs.Users.Where(user => !(user.Location == ""Te(l) (A)viv"")).Select(user => new {
Name = user.Name
})"
};
Assert.Equal(original.Map, generated.Map);
Assert.Equal(original, generated);
}
[Fact]
public void Convert_simple_query_with_char_literal()
{
IndexDefinition generated = new IndexDefinitionBuilder<User> {
Map = users => from user in users
where user.Name.Contains('C')
select user
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition {
Map = "docs.Users.Where(user => Enumerable.Contains(user.Name, 'C'))"
};
Assert.Equal(original.Map, generated.Map);
}
[Fact]
public void Convert_map_reduce_query()
{
IndexDefinition generated = new IndexDefinitionBuilder<User, LocationCount>
{
Map = users => from user in users
select new { user.Location, Count = 1 },
Reduce = counts => from agg in counts
group agg by agg.Location
into g
select new { Location = g.Key, Count = g.Sum(x => x.Count) },
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition
{
Map = @"docs.Users.Select(user => new {
Location = user.Location,
Count = 1
})",
Reduce = @"results.GroupBy(agg => agg.Location).Select(g => new {
Location = g.Key,
Count = Enumerable.Sum(g, x => ((int) x.Count))
})"
};
Assert.Equal(original.Map, generated.Map);
Assert.Equal(original.Reduce, generated.Reduce);
}
public void Convert_map_reduce_query_with_map_(Expression<Func<IEnumerable<User>, IEnumerable>> mapExpression, string expectedIndexString)
{
IndexDefinition generated = new IndexDefinitionBuilder<User, LocationCount>
{
Map = mapExpression,
Reduce = counts => from agg in counts
group agg by agg.Location
into g
select new { Location = g.Key, Count = g.Sum(x => x.Count) },
}.ToIndexDefinition(new DocumentConvention());
var original = new IndexDefinition
{
Map = expectedIndexString,
Reduce = @"results.GroupBy(agg => agg.Location).Select(g => new {
Location = g.Key,
Count = Enumerable.Sum(g, x => ((int) x.Count))
})"
};
Assert.Equal(expectedIndexString, generated.Map);
Assert.Equal(original.Reduce, generated.Reduce);
}
[Fact]
public void Convert_map_reduce_preserving_parenthesis()
{
Convert_map_reduce_query_with_map_(
users => from user in users
select new { Location = user.Location, Count = (user.Age + 3) * (user.Age + 4) },
@"docs.Users.Select(user => new {
Location = user.Location,
Count = (user.Age + 3) * (user.Age + 4)
})");
}
[Fact]
public void Convert_map_reduce_query_with_trinary_conditional()
{
Convert_map_reduce_query_with_map_(
users => from user in users
select new { Location = user.Location, Count = user.Age >= 1 ? 1 : 0 },
@"docs.Users.Select(user => new {
Location = user.Location,
Count = user.Age >= 1 ? 1 : 0
})");
}
[Fact]
public void Convert_map_reduce_query_with_enum_comparison()
{
Convert_map_reduce_query_with_map_(
users => from user in users
select new { Location = user.Location, Count = user.Gender == Gender.Female ? 1 : 0},
@"docs.Users.Select(user => new {
Location = user.Location,
Count = user.Gender == ""Female"" ? 1 : 0
})");
}
[Fact]
public void Convert_map_reduce_query_with_type_check()
{
Convert_map_reduce_query_with_map_(
users => from user in users
select new { Location = user.Location, Count = user.Location is String ? 1 : 0 },
@"docs.Users.Select(user => new {
Location = user.Location,
Count = user.Location is String ? 1 : 0
})");
}
public enum Gender
{
Male,
Female
}
public class User
{
public string Id { get; set; }
public string Name { get; set; }
public string Location { get; set; }
public int Age { get; set; }
public Gender Gender { get; set; }
}
public class Named
{
public string Name { get; set; }
}
public class LocationCount
{
public string Location { get; set; }
public int Count { get; set; }
}
public class LocationAge
{
public string Location { get; set; }
public decimal AverageAge { get; set; }
public int Count { get; set; }
public decimal AgeSum { get; set; }
}
public class Order
{
public string Id { get; set; }
public string Customer { get; set; }
public IList<OrderLine> OrderLines { get; set; }
public Order()
{
OrderLines = new List<OrderLine>();
}
}
public class OrderLine
{
public string ProductId { get; set; }
public int Quantity { get; set; }
}
}
}