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Revision 634

Added by berkley almost 24 years ago

updating a package file now updates the relations that are created from it. Also, if you delete a package file, it will delete the relations associated with it.

View differences:

src/edu/ucsb/nceas/metacat/DocumentImpl.java
799 799 
                              String group, int serverCode, boolean override)
800 800 
                throws Exception
801 801 
  {
802 
    if(action.equals("UPDATE"))
803 
    {
804 
      RelationHandler.deleteRelations(docid);
805 
    }
806
802 807 
    int updaterev;
803 808 
    MetaCatUtil util = new MetaCatUtil();
804 809 
        // Determine if the docid is OK for INSERT or UPDATE
......
981 986 
    stmt.close();
982 987 
    conn.commit();
983 988 
    conn.setAutoCommit(true);
984
989 
    //IF this is a package document:
990 
    //delete all of the relations that this document created.
991 
    //if the deleted document is a package document its relations should
992 
    //no longer be active if it has been deleted from the system.
993 
    RelationHandler.deleteRelations(docid);
985 994 
  }
986 995
987 996 
  /**
src/edu/ucsb/nceas/metacat/RelationHandler.java
105 105 
          if(object.equals(currentObj))
106 106 
          {//there is a transitive relation so add a new relation to the table
107 107 
            StringBuffer insertTransRelation = new StringBuffer();
108 
            insertTransRelation.append("insert into xml_relation (subject, ");
108 
            insertTransRelation.append("insert into xml_relation (docid, ");
109 
            insertTransRelation.append(" subject, ");
109 110 
            insertTransRelation.append("subdoctype, relationship, object, ");
110 111 
            insertTransRelation.append("objdoctype) values ('");
112 
            insertTransRelation.append(docid).append("', '");
111 113 
            insertTransRelation.append(currentSub).append("', '");
112 114 
            insertTransRelation.append(currentSubDoctype).append("', ");
113 115 
            insertTransRelation.append("'hasTransitiveRelationTo', '");
114 116 
            insertTransRelation.append(subject).append("', '");
115 117 
            insertTransRelation.append(subjectDoctype).append("')");
118 
            //System.out.println("sql1: " + insertTransRelation.toString());
116 119 
            pstmt = conn.prepareStatement(insertTransRelation.toString());
117 120 
            pstmt.execute();
118 121
119 122 
            insertTransRelation = new StringBuffer();
120 123 
            //put the same relation in with the subject and object switched
121 
            insertTransRelation.append("insert into xml_relation (subject, ");
124 
            insertTransRelation.append("insert into xml_relation (docid, ");
125 
            insertTransRelation.append(" subject, ");
122 126 
            insertTransRelation.append("subdoctype, relationship, object, ");
123 127 
            insertTransRelation.append("objdoctype) values ('");
128 
            insertTransRelation.append(docid).append("', '");
124 129 
            insertTransRelation.append(subject).append("', '");
125 130 
            insertTransRelation.append(subjectDoctype).append("', ");
126 131 
            insertTransRelation.append("'hasTransitiveRelationTo', '");
127 132 
            insertTransRelation.append(currentSub).append("', '");
128 133 
            insertTransRelation.append(currentSubDoctype).append("')");
134 
            //System.out.println("sql2: " + insertTransRelation.toString());
129 135 
            pstmt = conn.prepareStatement(insertTransRelation.toString());
130 136 
            pstmt.execute();
131 137 
          }
......
151 157 
        //now that the comparisons are done, the new relation can be put
152 158 
        //into xml_relation
153 159 
        StringBuffer insertStmt = new StringBuffer();
154 
        insertStmt.append("insert into xml_relation (subject, subdoctype, ");
160 
        insertStmt.append("insert into xml_relation (docid, subject, ");
161 
        insertStmt.append("subdoctype, ");
155 162 
        insertStmt.append("relationship, object, objdoctype) values ('");
163 
        insertStmt.append(docid).append("', '");
156 164 
        insertStmt.append(subject).append("', '");
157 165 
        insertStmt.append(subDoctype).append("', '");
158 166 
        insertStmt.append(relationship).append("', '");
......
182 190 
      btThread = null;
183 191 
    }
184 192 
  }
193
194 
  /**
195 
   * Deletes all of the relations with a docid of 'docid'.
196 
   * @param docid the docid to delete.
197 
   */
198 
  public static void deleteRelations(String docid)
199 
  {
200 
    try
201 
    {
202 
      MetaCatUtil util2 = new MetaCatUtil();
203 
      Connection conn = util2.openDBConnection();
204 
      PreparedStatement pstmt = conn.prepareStatement("delete from " +
205 
                             "xml_relation where docid like '" + docid + "'");
206 
      pstmt.execute();
207 
    }
208 
    catch(Exception e)
209 
    {
210 
      System.out.println("error in deleteRelations(): " + e.getMessage());
211 
      e.printStackTrace(System.out);
212 
    }
213
214 
  }
185 215 
}

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