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@@ -26,7 +26,105 @@
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### 該当のソースコード
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```DBAccessDapper
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Imports System.IO
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Imports System.Reflection
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Imports MyProject.Utils
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Imports Dapper
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Imports Npgsql
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Namespace Database
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Public Class DBAccessDapper
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Implements IDisposable
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#Region "定数"
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Private Const DATABASE_ENCODING As String = "UTF8"
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#End Region
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#Region "Private変数"
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Private Connection As IDbConnection
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Private Transaction As IDbTransaction
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Private Shared _DbConfigData As DbConfigData
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Private ReadOnly Property IsConnected As Boolean
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Get
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Return If(Connection IsNot Nothing, Connection.State = ConnectionState.Open, False)
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End Get
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End Property
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#End Region
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#Region "Publicメソッド"
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''' <summary>
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''' コンストラクタ
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''' </summary>
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Public Sub New()
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Try
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DefaultTypeMap.MatchNamesWithUnderscores = True
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GetDbConfiData()
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Open()
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Catch ex As Exception
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Throw New Exception("接続に失敗しました。" & " : " & ex.Message, ex)
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End Try
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End Sub
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''' <summary>
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''' コンストラクタ
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''' </summary>
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Public Sub New(ByVal hostName As String, ByVal port As Integer, ByVal userName As String, password As String, ByVal databaseName As String)
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Try
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DefaultTypeMap.MatchNamesWithUnderscores = True
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Open(hostName, port, userName, password, databaseName)
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Catch ex As Exception
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Throw New Exception("接続に失敗しました。" & " : " & ex.Message, ex)
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End Try
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End Sub
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''' <summary>
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''' データベースへの接続処理
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''' ※接続情報を設定ファイルから取得
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''' </summary>
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Public Sub Open()
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Open(_DbConfigData.ServerName, _DbConfigData.Port, _DbConfigData.UserId, _DbConfigData.Password, _DbConfigData.DatabaseName)
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End Sub
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''' <summary>
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''' データベースへの接続処理
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''' ※接続情報を引数から取得
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''' </summary>
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''' <param name="hostName">ホスト名</param>
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''' <param name="port">ポート</param>
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''' <param name="userName">ユーザー名</param>
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''' <param name="password">パスワード</param>
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''' <param name="dbName">データベース名</param>
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Public Sub Open(ByVal hostName As String, ByVal port As Integer, ByVal userName As String, password As String, ByVal dbName As String)
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If Connection Is Nothing Then Connection = New NpgsqlConnection
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Dim connStrBuilder As New NpgsqlConnectionStringBuilder
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Try
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'接続情報の設定
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connStrBuilder.Host = hostName
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connStrBuilder.Port = port
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connStrBuilder.UserName = userName
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connStrBuilder.Password = password
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connStrBuilder.Database = dbName
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'接続文字列の作成
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Connection.ConnectionString = connStrBuilder.ToString
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'接続
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Connection.Open()
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Catch ex As Exception
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Throw New Exception("接続に失敗しました。" & " : " & ex.Message & "|" & connStrBuilder.ToString, ex)
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End Try
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End Sub
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～省略～
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''' <summary>
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''' SQLの実行(SELECT)
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''' </summary>
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''' <typeparam name="T"></typeparam>
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@@ -83,4 +181,5 @@
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VB 2012
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.NET Framework 4
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-
Postgresql 9.3
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Postgresql 9.3
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Windows Forms使用
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1
タグを変更。
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body
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