Ajout des fonctions SQL d'insertion et de selection des Message

app/src/main/java/com/example/qrcode/Database.java

 package com.example.qrcode;
 
 import android.content.Context;
+import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
+import android.database.SQLException;
 
 public class Database extends SQLiteOpenHelper implements IDatabase {
 
@@ -117,4 +119,92 @@ public class Database extends SQLiteOpenHelper implements IDatabase {
 
     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {}
+
+    @Override
+    public void addMessage(Message message) throws SQLException {
+        db.execSQL(
+            "INSERT INTO " + MESSAGE_TABLENAME + "(" +
+                    MESSAGE_COL_IDEMMET + "," +
+                    MESSAGE_COL_IDDEST + "," +
+                    MESSAGE_COL_DATECREATION + "," +
+                    MESSAGE_COL_DATERECEPTION + "," +
+                    MESSAGE_COL_TEXT +
+                ") VALUES (" +
+                    message.getId_emmet() + "," +
+                    message.getId_dest() + "," +
+                    message.getDate_creation() + "," +
+                    message.getDate_reception() + "," +
+                    message.getCorps_de_text() +
+                ")"
+        );
+    }
+
+    @Override
+    public Message getMessageByID(int id) {
+        SQLiteDatabase db = this.getReadableDatabase();
+        Cursor c = db.rawQuery( "" +
+            "SELECT " +
+                MESSAGE_COL_PKID + ", " +
+                MESSAGE_COL_IDEMMET + ", " +
+                MESSAGE_COL_IDDEST + ", " +
+                MESSAGE_COL_DATECREATION + ", " +
+                MESSAGE_COL_DATERECEPTION + ", " +
+                MESSAGE_COL_TEXT +
+            " FROM " + MESSAGE_TABLENAME +
+            " WHERE " + MESSAGE_COL_PKID + " = " + id
+        , null);
+
+        if(c.moveToFirst()) {
+            return new Message(
+                Integer.parseInt(c.getString(0)),
+                Integer.parseInt(c.getString(1)),
+                Integer.parseInt(c.getString(2)),
+                c.getString(3),
+                c.getString(4),
+                c.getString(5)
+            );
+        }
+        else {
+            return null;
+        }
+    }
+
+
+    @Override
+    public Message[] getMessagesByContact(int id) {
+        SQLiteDatabase db = this.getReadableDatabase();
+        Cursor c = db.rawQuery( "" +
+                    "SELECT " +
+                        MESSAGE_COL_PKID + ", " +
+                        MESSAGE_COL_IDEMMET + ", " +
+                        MESSAGE_COL_IDDEST + ", " +
+                        MESSAGE_COL_DATECREATION + ", " +
+                        MESSAGE_COL_DATERECEPTION + ", " +
+                        MESSAGE_COL_TEXT +
+                    " FROM " + MESSAGE_TABLENAME +
+                    " WHERE " +
+                        MESSAGE_COL_IDEMMET + " = " + id +
+                    " OR " + MESSAGE_COL_IDDEST + " = " + id +
+                    " ORDER BY " + MESSAGE_COL_DATECREATION
+                , null);
+
+        if(c.moveToFirst()) {
+            Message[] messages = new Message[c.getCount()];
+            int i = 0;
+            do {
+                messages[i].fill(
+                    Integer.parseInt(c.getString(0)),
+                    Integer.parseInt(c.getString(1)),
+                    Integer.parseInt(c.getString(2)),
+                    c.getString(3),
+                    c.getString(4),
+                    c.getString(5));
+                i++;
+            } while(c.moveToNext());
+            return messages;
+        }
+        else {
+            return null;
+        }
+    }
 }

app/src/main/java/com/example/qrcode/IDatabase.java

 package com.example.qrcode;
+import android.database.SQLException;
 
 public interface IDatabase {
     // stocker des messages en fonction de pseudo cible
-    int addMessage(String dest_name, String body);
-    Message getMessageByID(int id);
-    Message getMessagesByContact(int id);
+    void addMessage(Message message) throws SQLException;
+    Message getMessageByID(int id) throws SQLException;
+    Message[] getMessagesByContact(int id) throws SQLException;
 
     // stocker image (bin) stocker en fonction du pseudo cible ET pseudo emmeteur.
 }

app/src/main/java/com/example/qrcode/Message.java

@@ -19,6 +19,15 @@ public class Message {
         this.corps_de_text = corps_de_text;
     }
 
+    public void fill(int id, int id_emmet, int id_dest, String date_creation, String date_reception, String corps_de_text) {
+        this.setId(id);
+        this.setId_emmet(id_emmet);
+        this.setId_dest(id_dest);
+        this.setDate_creation(date_creation);
+        this.setDate_reception(date_reception);
+        this.setCorps_de_text(corps_de_text);
+    }
+
     // Getters
     public int getId() {
         return id;