Add files via upload

2018-04-25 20:43:41 +02:00
parent 8fc04fbbb6
commit 428cc9099e
80 changed files with 11718 additions and 0 deletions
--- a/L7/LPQResultSet.h
+++ b/L7/LPQResultSet.h
@@ -0,0 +1,118 @@
+/* 
+ * File:   LPQResultSet.h
+ * Author: SET - nmset@netcourrier.com
+ * License : LGPL version 2.1
+ * Copyright SET, M. D. - © 2014
+ *
+ * Created on 29 mai 2014, 16:16
+ */
+
+#ifdef USE_LIBPQ
+#ifndef LPQRESULTSET_H
+#define	LPQRESULTSET_H
+
+#include "LResultSet.h"
+#include <libpq-fe.h>
+
+/**
+ * PostgreSQL namespace.
+ * 
+ * Please note USE_LIBPQ pre-processor directive must be defined to include the PostgreSQL backend.
+ */
+namespace PQ
+{
+#define RSPQMC wxString(_T("RSPQM"))
+#define RS000C wxString(_T("RS000"))
+#define RS000M wxString(_("Result set is NULL."))
+#define RS001C wxString(_T("RS001"))
+#define RS001M wxString(_("Insert started\nPlease SAVE or CANCEL first"))
+#define RS002C wxString(_T("RS002"))
+#define RS002M wxString(_("Unknown error"))
+#define RS003C wxString(_T("RS003"))
+#define RS003M wxString(_("Data altered\nPlease SAVE or CANCEL first"))
+#define RS004C wxString(_T("RS004"))
+#define RS004M wxString(_("Invalid column name :\n"))
+
+    /**
+     * Scrollable resultset for the PostgreSQL backend.
+     * 
+     * This class allows data modification through GUI elements.
+     * The underlying SQL query must not contain table aliases.
+     * 
+     * A column alias must still be a real column name of the table specified in SetTableName.
+     * 
+     * Ex : SELECT tbl1.pk1, tbl1.text1, list2.text2 AS num1 FROM tbl1 LEFT JOIN list2 ON tbl1.num1 = list2.pk2
+     */
+    class LPQResultSet : public LResultSet
+    {
+    public:
+        LPQResultSet();
+        LPQResultSet(LConnection * newConnection);
+        virtual ~LPQResultSet();
+
+        /**
+         * Updates and runs the SQL string.
+         * @param newSql
+         * @return 
+         */
+        bool SetSQL(const wxString& newSql);
+        bool HasData() const;
+        bool Absolute(const unsigned int newRowIndex);
+        bool IsFirst() const;
+        bool IsLast() const;
+        bool First();
+        bool Next();
+        bool Previous();
+        bool Last();
+        const unsigned int GetRowCount() const;
+        const unsigned int GetColumnCount() const;
+        const wxString GetColumnName(const unsigned int colIndex) const;
+        const int GetColumnIndex(const wxString& colName) const;
+        const wxAny GetData(const unsigned int rowIdx, const unsigned int colIdx) const;
+        /**
+         * At current row.
+         * @param colName
+         * @return database table value or wxEmptyString.
+         */
+        const wxAny GetData(const wxString& colName) const;
+        /**
+         * Updates registered controls on screen.
+         */
+        void Display();
+        bool Save();
+
+        inline void InformInserting() const
+        {
+            InformLibMessage(LInformation(RS001C, RS001M));
+        }
+
+        inline void InformDirty() const
+        {
+            InformLibMessage(LInformation(RS003C, RS003M));
+        };
+
+        /**
+         * Replaces a single quote ' by two single quotes '' .
+         * @param literal
+         * @return the number of single quotes replaced
+         */
+        static int EscapeChar(wxString& literal)
+        {
+            return literal.Replace(_T("'"), _T("''"));
+        }
+
+    private:
+        bool RunSQL();
+        const wxString MakeUpdateSQL() const;
+        const wxString MakeDeleteSQL() const;
+        /**
+         * Locates a row by the primary key value and returns its index.
+         * @param pkValue
+         * @return row index or -1 if not found.
+         */
+        const int GetRowByPKValue(const wxAny& pkValue) const;
+    };
+
+}
+#endif	/* LPQRESULTSET_H */
+#endif