EntityFrameworkCore.SqlServer.SimpleBulks/src/DbContextExtensionsExamples/Program.cs at master · phongnguyend/EntityFrameworkCore.SqlServer.SimpleBulks · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
using DbContextExtensionsExamples;
using DbContextExtensionsExamples.Entities;
using EntityFrameworkCore.SqlServer.SimpleBulks.BulkDelete;
using EntityFrameworkCore.SqlServer.SimpleBulks.BulkInsert;
using EntityFrameworkCore.SqlServer.SimpleBulks.BulkMerge;
using EntityFrameworkCore.SqlServer.SimpleBulks.BulkUpdate;
using EntityFrameworkCore.SqlServer.SimpleBulks.DirectDelete;
using EntityFrameworkCore.SqlServer.SimpleBulks.DirectInsert;
using EntityFrameworkCore.SqlServer.SimpleBulks.DirectUpdate;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;

using (var dbct = new DemoDbContext())
{
    dbct.Database.Migrate();

    var deleteResult = await dbct.BulkDeleteAsync(dbct.Set<ConfigurationEntry>().AsNoTracking().ToList(),
        new BulkDeleteOptions()
        {
            LogTo = Console.WriteLine
        });

    Console.WriteLine($"Deleted: {deleteResult.AffectedRows} row(s)");

    var configurationEntries = new List<ConfigurationEntry>();

    for (int i = 0; i < 1000; i++)
    {
        configurationEntries.Add(new ConfigurationEntry
        {
            Key = $"Key{i}",
            Value = $"Value{i}",
            CreatedDateTime = DateTimeOffset.Now,
            SeasonAsInt = Season.Spring,
            SeasonAsString = Season.Spring,
        });
    }

    await dbct.BulkInsertAsync(configurationEntries,
        new BulkInsertOptions()
        {
            LogTo = Console.WriteLine
        });

    foreach (var row in configurationEntries)
    {
        row.Key += "xx";
        row.UpdatedDateTime = DateTimeOffset.Now;
        row.SeasonAsInt = Season.Winter;
        row.SeasonAsString = Season.Winter;
        row.IsSensitive = true;
        row.Description = row.Id.ToString();
    }

    var updateResult = await dbct.BulkUpdateAsync(configurationEntries,
        x => new { x.Key, x.UpdatedDateTime, x.IsSensitive, x.Description, x.SeasonAsInt, x.SeasonAsString },
        new BulkUpdateOptions()
        {
            LogTo = Console.WriteLine,
            ConfigureSetClause = ctx =>
            {
                if (ctx.PropertyName == "SeasonAsInt")
                {
                    return $"{ctx.Left} = {ctx.GetTargetTableColumn("SeasonAsInt")} + {ctx.Right} + {ctx.GetSourceTableColumn("SeasonAsInt")}";
                }

                return null;
            }
        });

    Console.WriteLine($"Updated: {updateResult.AffectedRows} row(s)");

    configurationEntries.Add(new ConfigurationEntry
    {
        Key = $"Key{1001}",
        Value = $"Value{1001}",
        CreatedDateTime = DateTimeOffset.Now,
        SeasonAsInt = Season.Summer,
        SeasonAsString = Season.Summer,
    });

    var mergeResult = await dbct.BulkMergeAsync(configurationEntries,
        x => x.Id,
        x => new { x.Key, x.UpdatedDateTime, x.IsSensitive, x.Description, x.SeasonAsInt },
        x => new { x.Key, x.Value, x.IsSensitive, x.CreatedDateTime, x.SeasonAsInt, x.SeasonAsString },
        new BulkMergeOptions()
        {
            LogTo = Console.WriteLine,
            ConfigureSetClause = ctx =>
            {
                if (ctx.PropertyName == "SeasonAsInt")
                {
                    return $"{ctx.Left} = {ctx.GetTargetTableColumn("SeasonAsInt")} + {ctx.Right} + {ctx.GetSourceTableColumn("SeasonAsInt")}";
                }

                return null;
            },
            ConfigureWhenNotMatchedBySource = ctx =>
            {
                return new WhenNotMatchedBySourceAction
                {
                    AndCondition = $"{ctx.GetTargetTableColumnWithAlias("Key")} LIKE 'Key%'",
                    ThenAction = $"UPDATE SET {ctx.GetTargetTableColumnWithoutAlias("Key")} = 'xxx'"
                };
            }
        });

    Console.WriteLine($"Updated: {mergeResult.UpdatedRows} row(s)");
    Console.WriteLine($"Inserted: {mergeResult.InsertedRows} row(s)");
    Console.WriteLine($"Affected: {mergeResult.AffectedRows} row(s)");

    var configurationEntry = new ConfigurationEntry
    {
        Key = $"Key_DirectInsert",
        Value = $"Value_DirectInsert",
        CreatedDateTime = DateTimeOffset.Now,
        SeasonAsInt = Season.Autumn,
        SeasonAsString = Season.Autumn,
    };

    await dbct.DirectInsertAsync(configurationEntry,
        new BulkInsertOptions()
        {
            LogTo = Console.WriteLine
        });

    configurationEntry.Key += "_Updated";
    configurationEntry.Value += "_Updated";
    configurationEntry.UpdatedDateTime = DateTimeOffset.Now;
    configurationEntry.SeasonAsInt = Season.Spring;
    configurationEntry.SeasonAsString = Season.Spring;

    await dbct.DirectUpdateAsync(configurationEntry,
        x => new { x.Key, x.Value, x.UpdatedDateTime, x.SeasonAsInt, x.SeasonAsString },
        new BulkUpdateOptions()
        {
            LogTo = Console.WriteLine,
            ConfigureSetClause = ctx =>
            {
                if (ctx.PropertyName == "SeasonAsInt")
                {
                    return $"{ctx.Left} = {ctx.GetTargetTableColumn("SeasonAsInt")} + {ctx.Right} + {ctx.GetSourceTableColumn("SeasonAsInt")}";
                }

                return null;
            }
        });

    await dbct.DirectDeleteAsync(configurationEntry,
        new BulkDeleteOptions()
        {
            LogTo = Console.WriteLine
        });
}

Console.WriteLine("Finished!");
Console.ReadLine();