src/cx/fbn/nevernote/sql/NoteTagsTable.java

   1 /*\r
   2  * This file is part of NeverNote \r
   3  * Copyright 2009 Randy Baumgarte\r
   4  * \r
   5  * This file may be licensed under the terms of of the\r
   6  * GNU General Public License Version 2 (the ``GPL'').\r
   7  *\r
   8  * Software distributed under the License is distributed\r
   9  * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either\r
  10  * express or implied. See the GPL for the specific language\r
  11  * governing rights and limitations.\r
  12  *\r
  13  * You should have received a copy of the GPL along with this\r
  14  * program. If not, go to http://www.gnu.org/licenses/gpl.html\r
  15  * or write to the Free Software Foundation, Inc.,\r
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
  17  *\r
  18 */\r
  19 \r
  20 \r
  21 package cx.fbn.nevernote.sql;\r
  22 \r
  23 import java.util.ArrayList;\r
  24 import java.util.List;\r
  25 \r
  26 import cx.fbn.nevernote.sql.driver.NSqlQuery;\r
  27 import cx.fbn.nevernote.utilities.ApplicationLogger;\r
  28 import cx.fbn.nevernote.utilities.Pair;\r
  29 \r
  30 public class NoteTagsTable {\r
  31         private final ApplicationLogger                 logger;\r
  32         DatabaseConnection                                              db;\r
  33 \r
  34         \r
  35         // Constructor\r
  36         public NoteTagsTable(ApplicationLogger l,DatabaseConnection d) {\r
  37                 logger = l;\r
  38                 db = d;\r
  39         }\r
  40         // Create the table\r
  41         public void createTable() {\r
  42                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
  43         // Create the NoteTag table\r
  44         logger.log(logger.HIGH, "Creating table NoteTags...");\r
  45         if (!query.exec("Create table NoteTags (noteGuid varchar, " +\r
  46                         "tagGuid varchar, primary key(noteGuid, tagGuid))"))\r
  47                 logger.log(logger.HIGH, "Table NoteTags creation FAILED!!!"); \r
  48         }\r
  49         // Drop the table\r
  50         public void dropTable() {\r
  51                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
  52                 query.exec("drop table NoteTags");\r
  53         }\r
  54         // Get a note tags by the note's Guid\r
  55         public List<String> getNoteTags(String noteGuid) {\r
  56                 if (noteGuid == null)\r
  57                         return null;\r
  58                 boolean check;\r
  59                 List<String> tags = new ArrayList<String>();\r
  60                 \r
  61                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
  62                 check = query.exec("Select "\r
  63                                 +"TagGuid from NoteTags where noteGuid = '" +noteGuid +"'");\r
  64                 if (!check) {\r
  65                         logger.log(logger.EXTREME, "NoteTags SQL select has failed.");\r
  66                         logger.log(logger.MEDIUM, query.lastError());\r
  67                         return null;\r
  68                 }\r
  69                 while (query.next()) {\r
  70                         tags.add(query.valueString(0));\r
  71                 }       \r
  72                 return tags;\r
  73         }\r
  74         // Get a note tags by the note's Guid\r
  75         public List<NoteTagsRecord> getAllNoteTags() {\r
  76                 List<NoteTagsRecord> tags = new ArrayList<NoteTagsRecord>();\r
  77                 \r
  78                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
  79                 if (!query.exec("Select TagGuid, NoteGuid from NoteTags")) {\r
  80                         logger.log(logger.EXTREME, "NoteTags SQL select has failed.");\r
  81                         logger.log(logger.MEDIUM, query.lastError());\r
  82                         return null;\r
  83                 }\r
  84                 while (query.next()) {\r
  85                         NoteTagsRecord record = new NoteTagsRecord();\r
  86                         record.tagGuid = query.valueString(0);\r
  87                         record.noteGuid = query.valueString(1);\r
  88                         tags.add(record);\r
  89                 }       \r
  90                 return tags;\r
  91         }\r
  92         // Check if a note has a specific tag already\r
  93         public boolean checkNoteNoteTags(String noteGuid, String tagGuid) {\r
  94                 if (noteGuid == null || tagGuid == null)\r
  95                         return false;\r
  96                 boolean check;\r
  97                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
  98                 check = query.prepare("Select "\r
  99                                 +"NoteGuid, TagGuid from NoteTags where noteGuid = :noteGuid and tagGuid = :tagGuid");\r
 100                 if (!check)\r
 101                         logger.log(logger.EXTREME, "checkNoteTags SQL prepare has failed.");\r
 102                 \r
 103                 query.bindValue(":noteGuid", noteGuid);\r
 104                 query.bindValue(":tagGuid", tagGuid);\r
 105                 query.exec();\r
 106                 \r
 107                 if (!check) {\r
 108                         logger.log(logger.EXTREME, "checkNoteTags SQL select has failed.");\r
 109                         logger.log(logger.MEDIUM, query.lastError());\r
 110                         return false;\r
 111                 }\r
 112                 \r
 113                 if (query.next()) {\r
 114                         return true;\r
 115                 }       \r
 116                 return false;\r
 117         }\r
 118         // Save Note Tags\r
 119         public void saveNoteTag(String noteGuid, String tagGuid) {\r
 120                 boolean check;\r
 121                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
 122 \r
 123                 check = query.prepare("Insert Into NoteTags (noteGuid, tagGuid) "\r
 124                                 +"Values("\r
 125                                 +":noteGuid, :tagGuid)");\r
 126                 if (!check)\r
 127                         logger.log(logger.EXTREME, "Note SQL insert prepare has failed.");\r
 128         \r
 129                 query.bindValue(":noteGuid", noteGuid);\r
 130                 query.bindValue(":tagGuid", tagGuid);\r
 131                                                 \r
 132                 check = query.exec();\r
 133                 if (!check) {\r
 134                         logger.log(logger.MEDIUM, "NoteTags Table insert failed.");             \r
 135                         logger.log(logger.MEDIUM, query.lastError());\r
 136                 }\r
 137                 check = query.prepare("Update Note set isDirty=1 where guid=:guid");\r
 138                 if (!check)\r
 139                         logger.log(logger.EXTREME, "RNoteTagsTable.saveNoteTag prepare has failed.");\r
 140                 query.bindValue(":guid", noteGuid);\r
 141                 if (!check) {\r
 142                         logger.log(logger.MEDIUM, "RNoteTagsTable.saveNoteTag has failed to set note as dirty.");               \r
 143                         logger.log(logger.MEDIUM, query.lastError());\r
 144                 }\r
 145         }\r
 146         // Delete a note's tags\r
 147         public void deleteNoteTag(String noteGuid) {\r
 148                 boolean check;\r
 149                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
 150                 check = query.prepare("Delete from NoteTags where noteGuid = :noteGuid");\r
 151                 if (!check)\r
 152                         logger.log(logger.EXTREME, "Note SQL delete prepare has failed.");\r
 153         \r
 154                 query.bindValue(":noteGuid", noteGuid);\r
 155                 check = query.exec();\r
 156                 if (!check) {\r
 157                         logger.log(logger.MEDIUM, "NoteTags Table delete failed.");             \r
 158                         logger.log(logger.MEDIUM, query.lastError());\r
 159                 }\r
 160 \r
 161         }\r
 162         // Get a note tag counts\r
 163         public List<Pair<String,Integer>> getTagCounts() {\r
 164                 List<Pair<String,Integer>> counts = new ArrayList<Pair<String,Integer>>();              \r
 165                 NSqlQuery query = new NSqlQuery(db.getConnection());\r
 166                 if (!query.exec("select tagguid, count(noteguid) from notetags group by tagguid;")) {\r
 167                         logger.log(logger.EXTREME, "NoteTags SQL getTagCounts has failed.");\r
 168                         logger.log(logger.MEDIUM, query.lastError());\r
 169                         return null;\r
 170                 }\r
 171                 while (query.next()) {\r
 172                         Pair<String,Integer> newCount = new Pair<String,Integer>();\r
 173                         newCount.setFirst(query.valueString(0));\r
 174                         newCount.setSecond(query.valueInteger(1));\r
 175                         counts.add(newCount);\r
 176                 }       \r
 177                 return counts;\r
 178         }\r
 179 }\r