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annotate m-toolbox/classes/@repogui/cb_executeQuery.m @ 33:5e7477b94d94 database-connection-manager

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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % Execute the query built on the query panel
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2 %
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3 % M Hewitson
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4 %
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5 % $Id: cb_executeQuery.m,v 1.7 2011/04/08 08:56:26 hewitson Exp $
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6 %
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7 function cb_executeQuery(varargin)
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8
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9
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10 % Get connection
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11 mainfig = varargin{end};
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12 conn = mainfig.connection;
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13 if isempty(conn)
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14 error('### Please connect to a database first.');
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15 end
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16
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17 if ischar(varargin{end-1})
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18 q = varargin{end-1};
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19 fields = 'id';
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20
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21 else
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22 % Get Selected fields
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23 fieldList = findobj(mainfig.handle, 'Tag', 'fieldsList');
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24 fieldsStr = get(fieldList, 'String');
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25 vals = get(fieldList, 'Value');
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26 fields = fieldsStr(vals)';
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27
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28 % Get query
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29 h = findobj(mainfig.handle, 'Tag', 'queryDisplayTxt');
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30 q = get(h, 'String');
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31 end
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32
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33 try
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34 curs = exec(conn, q);
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35 curs = fetch(curs);
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36 results = curs.Data;
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37 close(curs)
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38 catch
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39 warning('!!! Unable to execute query %s', q)
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40 % warning('!!! Server returned: %s', curs.Message);
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41 results = {};
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42 close(conn);
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43 conn = [];
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44 disp('* disconnected.');
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45 mainfig.connection = conn;
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46 mainfig.username = '';
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47 set(findobj('Tag', 'ConnectButton'), 'String', 'connect');
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48 set(findobj(mainfig.handle, 'Tag', 'RepoguiStatusTxt'), 'String', 'not connected');
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49 mainfig.dbuser = '';
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50 mainfig.dbpass = '';
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51 popup2change = [findobj(mainfig.handle, 'Tag', 'tableSelect'), findobj(mainfig.handle, 'Tag', 'fieldsList'), findobj(mainfig.handle,'-regexp','Tag','.*Field$')];
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52 set(popup2change,'Value',1,'String',{'-'})
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53 set(findobj(mainfig.handle, 'Tag', 'tableSelect'),'Value', 1)
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54 assignin('base','prova',mainfig)
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55
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56 error('### Unable to execute query');
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57 end
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58
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59 status = findobj(mainfig.handle, 'Tag', 'RepoguiStatusTxt');
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60 if ~isempty(results)
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61 if strcmp(results{1}, 'No Data')
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62 utils.helper.errorDlg('Query returned no results.', 'Query Empty');
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63 set(status, 'String', ['*** No results to query: ' q], 'ForeGroundcolor','r');
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64 return
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65 else
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66 set(status, 'String', sprintf('*** Query returned %d results', numel(results)), 'ForeGroundcolor','b');
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67 repogui.sqlResultsGUI(results, fields, q);
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68 end
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69 end
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70
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71 end