astrodatagui: StarsDB: add functions to read inserted information

main/astrodatagui/db/StarsDB.py

@@ -104,3 +104,26 @@ class StarDB():
                 VALUES(\"{mainName}\", \"{source}\", {sequence}, \"{file}\")""")
 
         self.connection.commit()
+
+    def getAllStars(self):
+        res = self.dbCursor.execute("""SELECT DISTINCT mainName FROM stars
+                                       ORDER BY mainName""")
+        return res.fetchall()
+    
+    def getStarData(self, mainName):
+        res = self.dbCursor.execute(f"""SELECT sourceName, sequence FROM stars
+                                        WHERE mainName = \"{mainName}\"
+                                        ORDER BY
+                                              sourceName ASC,
+                                              sequence ASC""")
+        return res.fetchall()
+
+    def getFilePath(self, mainName, source, sequence):
+        print(f"Trying for {mainName}, {source}, {sequence}")
+        res = self.dbCursor.execute(f"""SELECT filename FROM stars
+                                        WHERE
+                                             mainName = \"{mainName}\" AND
+                                             sourceName = \"{source}\" AND
+                                             sequence = {sequence}
+                                              """)
+        return res.fetchone()[0]