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<h1>Source code for sqlobject.maxdb.maxdbconnection</h1><div class="highlight"><pre>
<span></span><span class="sd">"""</span>
<span class="sd">Contributed by Edigram SAS, Paris France Tel:01 44 77 94 00</span>
<span class="sd">Ahmed MOHAMED ALI <ahmedmoali@yahoo.com> 27 April 2004</span>
<span class="sd">This program is distributed in the hope that it will be useful, but</span>
<span class="sd">WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="sd">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<span class="sd">General Public License for more details.</span>
<span class="sd">connection creation sample::</span>
<span class="sd"> __connection__ = DBConnection.maxdbConnection(</span>
<span class="sd"> host=hostname, database=dbname,</span>
<span class="sd"> user=user_name, password=user_password, autoCommit=1, debug=1)</span>
<span class="sd">"""</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">from</span> <span class="nn">sqlobject.dbconnection</span> <span class="k">import</span> <span class="n">DBAPI</span>
<span class="kn">from</span> <span class="nn">sqlobject</span> <span class="k">import</span> <span class="n">col</span>
<div class="viewcode-block" id="maxdbException"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.maxdbException">[docs]</a><span class="k">class</span> <span class="nc">maxdbException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">repr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="LowerBoundOfSliceIsNotSupported"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.LowerBoundOfSliceIsNotSupported">[docs]</a><span class="k">class</span> <span class="nc">LowerBoundOfSliceIsNotSupported</span><span class="p">(</span><span class="n">maxdbException</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="n">maxdbException</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s1">''</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="IncorrectIDStyleError"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.IncorrectIDStyleError">[docs]</a><span class="k">class</span> <span class="nc">IncorrectIDStyleError</span><span class="p">(</span><span class="n">maxdbException</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="n">maxdbException</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span>
<span class="s1">'This primary key name is not in the expected style, '</span>
<span class="s1">'please rename the column to </span><span class="si">%r</span><span class="s1"> or switch to another style'</span>
<span class="o">%</span> <span class="n">value</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="StyleMismatchError"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.StyleMismatchError">[docs]</a><span class="k">class</span> <span class="nc">StyleMismatchError</span><span class="p">(</span><span class="n">maxdbException</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="n">maxdbException</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span>
<span class="s1">'The name </span><span class="si">%r</span><span class="s1"> is only permitted for primary key, change the '</span>
<span class="s1">'column name or switch to another style'</span> <span class="o">%</span> <span class="n">value</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="PrimaryKeyNotFounded"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.PrimaryKeyNotFounded">[docs]</a><span class="k">class</span> <span class="nc">PrimaryKeyNotFounded</span><span class="p">(</span><span class="n">maxdbException</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="n">maxdbException</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span>
<span class="s2">"No primary key was defined on table </span><span class="si">%r</span><span class="s2">"</span> <span class="o">%</span> <span class="n">value</span><span class="p">)</span>
</div>
<span class="n">SAPDBMAX_ID_LENGTH</span> <span class="o">=</span> <span class="mi">32</span>
<div class="viewcode-block" id="MaxdbConnection"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection">[docs]</a><span class="k">class</span> <span class="nc">MaxdbConnection</span><span class="p">(</span><span class="n">DBAPI</span><span class="p">):</span>
<span class="n">supportTransactions</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">dbName</span> <span class="o">=</span> <span class="s1">'maxdb'</span>
<span class="n">schemes</span> <span class="o">=</span> <span class="p">[</span><span class="n">dbName</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="s1">''</span><span class="p">,</span> <span class="n">port</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">user</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">password</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">database</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">autoCommit</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">sqlmode</span><span class="o">=</span><span class="s1">'internal'</span><span class="p">,</span>
<span class="n">isolation</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">**</span><span class="n">kw</span><span class="p">):</span>
<span class="kn">from</span> <span class="nn">sapdb</span> <span class="k">import</span> <span class="n">dbapi</span>
<span class="bp">self</span><span class="o">.</span><span class="n">module</span> <span class="o">=</span> <span class="n">dbapi</span>
<span class="bp">self</span><span class="o">.</span><span class="n">host</span> <span class="o">=</span> <span class="n">host</span>
<span class="bp">self</span><span class="o">.</span><span class="n">port</span> <span class="o">=</span> <span class="n">port</span>
<span class="bp">self</span><span class="o">.</span><span class="n">user</span> <span class="o">=</span> <span class="n">user</span>
<span class="bp">self</span><span class="o">.</span><span class="n">password</span> <span class="o">=</span> <span class="n">password</span>
<span class="bp">self</span><span class="o">.</span><span class="n">db</span> <span class="o">=</span> <span class="n">database</span>
<span class="bp">self</span><span class="o">.</span><span class="n">autoCommit</span> <span class="o">=</span> <span class="n">autoCommit</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sqlmode</span> <span class="o">=</span> <span class="n">sqlmode</span>
<span class="bp">self</span><span class="o">.</span><span class="n">isolation</span> <span class="o">=</span> <span class="n">isolation</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout</span> <span class="o">=</span> <span class="n">timeout</span>
<span class="n">DBAPI</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kw</span><span class="p">)</span>
<span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">_connectionFromParams</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">auth</span><span class="p">,</span> <span class="n">password</span><span class="p">,</span> <span class="n">host</span><span class="p">,</span> <span class="n">port</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">args</span><span class="p">):</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'/'</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">sep</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">cls</span><span class="p">(</span><span class="n">host</span><span class="p">,</span> <span class="n">port</span><span class="p">,</span> <span class="n">user</span><span class="o">=</span><span class="n">auth</span><span class="p">,</span> <span class="n">password</span><span class="o">=</span><span class="n">password</span><span class="p">,</span> <span class="n">database</span><span class="o">=</span><span class="n">path</span><span class="p">,</span>
<span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_getConfigParams</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sqlmode</span><span class="p">,</span> <span class="n">auto</span><span class="p">):</span>
<span class="n">autocommit</span> <span class="o">=</span> <span class="s1">'off'</span>
<span class="k">if</span> <span class="n">auto</span><span class="p">:</span>
<span class="n">autocommit</span> <span class="o">=</span> <span class="s1">'on'</span>
<span class="n">opt</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">opt</span><span class="p">[</span><span class="s2">"autocommit"</span><span class="p">]</span> <span class="o">=</span> <span class="n">autocommit</span>
<span class="n">opt</span><span class="p">[</span><span class="s2">"sqlmode"</span><span class="p">]</span> <span class="o">=</span> <span class="n">sqlmode</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">isolation</span><span class="p">:</span>
<span class="n">opt</span><span class="p">[</span><span class="s2">"isolation"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">isolation</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">timeout</span><span class="p">:</span>
<span class="n">opt</span><span class="p">[</span><span class="s2">"timeout"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">timeout</span>
<span class="k">return</span> <span class="n">opt</span>
<span class="k">def</span> <span class="nf">_setAutoCommit</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">conn</span><span class="p">,</span> <span class="n">auto</span><span class="p">):</span>
<span class="n">conn</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="n">conn</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">user</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">password</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">db</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">host</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_getConfigParams</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sqlmode</span><span class="p">,</span> <span class="n">auto</span><span class="p">))</span>
<div class="viewcode-block" id="MaxdbConnection.createSequenceName"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createSequenceName">[docs]</a> <span class="k">def</span> <span class="nf">createSequenceName</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> sequence name are builded with the concatenation of the table</span>
<span class="sd"> name with '_SEQ' word we truncate the name of the</span>
<span class="sd"> sequence_name because sapdb identifier cannot exceed 32</span>
<span class="sd"> characters so that the name of the sequence does not exceed 32</span>
<span class="sd"> characters</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">_SEQ'</span> <span class="o">%</span> <span class="p">(</span><span class="n">table</span><span class="p">[:</span><span class="n">SAPDBMAX_ID_LENGTH</span> <span class="o">-</span> <span class="mi">4</span><span class="p">])</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.makeConnection"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.makeConnection">[docs]</a> <span class="k">def</span> <span class="nf">makeConnection</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">module</span><span class="o">.</span><span class="n">Connection</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">user</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">password</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">db</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">host</span><span class="p">,</span>
<span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">_getConfigParams</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sqlmode</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">autoCommit</span><span class="p">))</span>
<span class="k">return</span> <span class="n">conn</span>
</div>
<span class="k">def</span> <span class="nf">_queryInsertID</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">conn</span><span class="p">,</span> <span class="n">soInstance</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="n">names</span><span class="p">,</span> <span class="n">values</span><span class="p">):</span>
<span class="n">table</span> <span class="o">=</span> <span class="n">soInstance</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">table</span>
<span class="n">idName</span> <span class="o">=</span> <span class="n">soInstance</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">idName</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">cursor</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">id</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">c</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span>
<span class="s1">'SELECT </span><span class="si">%s</span><span class="s1">.NEXTVAL FROM DUAL'</span> <span class="o">%</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">createSequenceName</span><span class="p">(</span><span class="n">table</span><span class="p">)))</span>
<span class="nb">id</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">fetchone</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">names</span> <span class="o">=</span> <span class="p">[</span><span class="n">idName</span><span class="p">]</span> <span class="o">+</span> <span class="n">names</span>
<span class="n">values</span> <span class="o">=</span> <span class="p">[</span><span class="nb">id</span><span class="p">]</span> <span class="o">+</span> <span class="n">values</span>
<span class="n">q</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_insertSQL</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">names</span><span class="p">,</span> <span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">printDebug</span><span class="p">(</span><span class="n">conn</span><span class="p">,</span> <span class="n">q</span><span class="p">,</span> <span class="s1">'QueryIns'</span><span class="p">)</span>
<span class="n">c</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span><span class="n">q</span><span class="p">)</span>
<span class="n">c</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">debugOutput</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">printDebug</span><span class="p">(</span><span class="n">conn</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="s1">'QueryIns'</span><span class="p">,</span> <span class="s1">'result'</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">id</span>
<div class="viewcode-block" id="MaxdbConnection.sqlAddLimit"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.sqlAddLimit">[docs]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">sqlAddLimit</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">limit</span><span class="p">):</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">query</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">"SELECT"</span><span class="p">,</span> <span class="s2">"SELECT ROWNO, "</span><span class="p">)</span>
<span class="k">if</span> <span class="n">sql</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">'WHERE'</span><span class="p">)</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span> <span class="o">+</span> <span class="s1">' AND '</span> <span class="o">+</span> <span class="n">limit</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span> <span class="o">+</span> <span class="s1">'WHERE '</span> <span class="o">+</span> <span class="n">limit</span>
<span class="k">return</span> <span class="n">sql</span>
</div>
<span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">_queryAddLimitOffset</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="p">):</span>
<span class="k">if</span> <span class="n">start</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">LowerBoundOfSliceIsNotSupported</span>
<span class="n">limit</span> <span class="o">=</span> <span class="s1">' ROWNO <= </span><span class="si">%d</span><span class="s1"> '</span> <span class="o">%</span> <span class="p">(</span><span class="n">end</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">cls</span><span class="o">.</span><span class="n">sqlAddLimit</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">limit</span><span class="p">)</span>
<div class="viewcode-block" id="MaxdbConnection.createTable"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createTable">[docs]</a> <span class="k">def</span> <span class="nf">createTable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">soClass</span><span class="p">):</span>
<span class="c1"># We create the table in a transaction because the addition of the</span>
<span class="c1"># table and the sequence must be atomic.</span>
<span class="c1"># I tried to use the transaction class</span>
<span class="c1"># but I get a recursion limit error.</span>
<span class="c1"># t=self.transaction()</span>
<span class="c1"># t.query('CREATE TABLE %s (\n%s\n)' %</span>
<span class="c1"># (soClass.sqlmeta.table, self.createColumns(soClass)))</span>
<span class="c1">#</span>
<span class="c1"># t.query("CREATE SEQUENCE %s" %</span>
<span class="c1"># self.createSequenceName(soClass.sqlmeta.table))</span>
<span class="c1"># t.commit()</span>
<span class="c1"># so use transaction when the problem will be solved</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s1">'CREATE TABLE </span><span class="si">%s</span><span class="s1"> (</span><span class="se">\n</span><span class="si">%s</span><span class="se">\n</span><span class="s1">)'</span> <span class="o">%</span>
<span class="p">(</span><span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">table</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">createColumns</span><span class="p">(</span><span class="n">soClass</span><span class="p">)))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s2">"CREATE SEQUENCE </span><span class="si">%s</span><span class="s2">"</span>
<span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">createSequenceName</span><span class="p">(</span><span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">table</span><span class="p">))</span>
<span class="k">return</span> <span class="p">[]</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.createReferenceConstraint"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createReferenceConstraint">[docs]</a> <span class="k">def</span> <span class="nf">createReferenceConstraint</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">soClass</span><span class="p">,</span> <span class="n">col</span><span class="p">):</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">maxdbCreateReferenceConstraint</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.createColumn"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createColumn">[docs]</a> <span class="k">def</span> <span class="nf">createColumn</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">soClass</span><span class="p">,</span> <span class="n">col</span><span class="p">):</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">maxdbCreateSQL</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.createIDColumn"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createIDColumn">[docs]</a> <span class="k">def</span> <span class="nf">createIDColumn</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">soClass</span><span class="p">):</span>
<span class="n">key_type</span> <span class="o">=</span> <span class="p">{</span><span class="nb">int</span><span class="p">:</span> <span class="s2">"INT"</span><span class="p">,</span> <span class="nb">str</span><span class="p">:</span> <span class="s2">"TEXT"</span><span class="p">}[</span><span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">idType</span><span class="p">]</span>
<span class="k">return</span> <span class="s1">'</span><span class="si">%s</span><span class="s1"> </span><span class="si">%s</span><span class="s1"> PRIMARY KEY'</span> <span class="o">%</span> <span class="p">(</span><span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">idName</span><span class="p">,</span> <span class="n">key_type</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.createIndexSQL"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.createIndexSQL">[docs]</a> <span class="k">def</span> <span class="nf">createIndexSQL</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">soClass</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
<span class="k">return</span> <span class="n">index</span><span class="o">.</span><span class="n">maxdbCreateIndexSQL</span><span class="p">(</span><span class="n">soClass</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.dropTable"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.dropTable">[docs]</a> <span class="k">def</span> <span class="nf">dropTable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tableName</span><span class="p">,</span> <span class="n">cascade</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="c1"># We drop the table in a transaction because the removal of the</span>
<span class="c1"># table and the sequence must be atomic.</span>
<span class="c1"># I tried to use the transaction class</span>
<span class="c1"># but I get a recursion limit error.</span>
<span class="c1"># try:</span>
<span class="c1"># t=self.transaction()</span>
<span class="c1"># t.query("DROP TABLE %s" % tableName)</span>
<span class="c1"># t.query("DROP SEQUENCE %s" % self.createSequenceName(tableName))</span>
<span class="c1"># t.commit()</span>
<span class="c1"># except:</span>
<span class="c1"># t.rollback()</span>
<span class="c1"># so use transaction when the problem will be solved</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s2">"DROP TABLE </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">tableName</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s2">"DROP SEQUENCE </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">createSequenceName</span><span class="p">(</span><span class="n">tableName</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.joinSQLType"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.joinSQLType">[docs]</a> <span class="k">def</span> <span class="nf">joinSQLType</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">):</span>
<span class="k">return</span> <span class="s1">'INT NOT NULL'</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.tableExists"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.tableExists">[docs]</a> <span class="k">def</span> <span class="nf">tableExists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tableName</span><span class="p">):</span>
<span class="k">for</span> <span class="p">(</span><span class="n">table</span><span class="p">,)</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryAll</span><span class="p">(</span>
<span class="s2">"SELECT OBJECT_NAME FROM ALL_OBJECTS "</span>
<span class="s2">"WHERE OBJECT_TYPE='TABLE'"</span><span class="p">):</span>
<span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="n">tableName</span><span class="o">.</span><span class="n">lower</span><span class="p">():</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">return</span> <span class="kc">False</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.addColumn"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.addColumn">[docs]</a> <span class="k">def</span> <span class="nf">addColumn</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tableName</span><span class="p">,</span> <span class="n">column</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s1">'ALTER TABLE </span><span class="si">%s</span><span class="s1"> ADD </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span>
<span class="p">(</span><span class="n">tableName</span><span class="p">,</span>
<span class="n">column</span><span class="o">.</span><span class="n">maxdbCreateSQL</span><span class="p">()))</span>
</div>
<div class="viewcode-block" id="MaxdbConnection.delColumn"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.delColumn">[docs]</a> <span class="k">def</span> <span class="nf">delColumn</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sqlmeta</span><span class="p">,</span> <span class="n">column</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s1">'ALTER TABLE </span><span class="si">%s</span><span class="s1"> DROP COLUMN </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">table</span><span class="p">,</span>
<span class="n">column</span><span class="o">.</span><span class="n">dbName</span><span class="p">))</span>
</div>
<span class="n">GET_COLUMNS</span> <span class="o">=</span> <span class="s2">"""</span>
<span class="s2"> SELECT COLUMN_NAME, NULLABLE, DATA_DEFAULT, DATA_TYPE,</span>
<span class="s2"> DATA_LENGTH, DATA_SCALE</span>
<span class="s2"> FROM USER_TAB_COLUMNS WHERE TABLE_NAME=UPPER('</span><span class="si">%s</span><span class="s2">')"""</span>
<span class="n">GET_PK_AND_FK</span> <span class="o">=</span> <span class="s2">"""</span>
<span class="s2"> SELECT constraint_cols.column_name, constraints.constraint_type,</span>
<span class="s2"> refname,reftablename</span>
<span class="s2"> FROM user_cons_columns constraint_cols</span>
<span class="s2"> INNER JOIN user_constraints constraints</span>
<span class="s2"> ON constraint_cols.constraint_name = constraints.constraint_name</span>
<span class="s2"> LEFT OUTER JOIN show_foreign_key fk</span>
<span class="s2"> ON constraint_cols.column_name = fk.columnname</span>
<span class="s2"> WHERE constraints.table_name =UPPER('</span><span class="si">%s</span><span class="s2">')"""</span>
<div class="viewcode-block" id="MaxdbConnection.columnsFromSchema"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.columnsFromSchema">[docs]</a> <span class="k">def</span> <span class="nf">columnsFromSchema</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tableName</span><span class="p">,</span> <span class="n">soClass</span><span class="p">):</span>
<span class="n">colData</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryAll</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">GET_COLUMNS</span>
<span class="o">%</span> <span class="n">tableName</span><span class="p">)</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">keymap</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">pkmap</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">fkData</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">queryAll</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">GET_PK_AND_FK</span> <span class="o">%</span> <span class="n">tableName</span><span class="p">)</span>
<span class="k">for</span> <span class="n">_col</span><span class="p">,</span> <span class="n">cons_type</span><span class="p">,</span> <span class="n">refcol</span><span class="p">,</span> <span class="n">reftable</span> <span class="ow">in</span> <span class="n">fkData</span><span class="p">:</span>
<span class="n">col_name</span> <span class="o">=</span> <span class="n">_col</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="n">pkmap</span><span class="p">[</span><span class="n">col_name</span><span class="p">]</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">if</span> <span class="n">cons_type</span> <span class="o">==</span> <span class="s1">'R'</span><span class="p">:</span>
<span class="n">keymap</span><span class="p">[</span><span class="n">col_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">reftable</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="k">elif</span> <span class="n">cons_type</span> <span class="o">==</span> <span class="s1">'P'</span><span class="p">:</span>
<span class="n">pkmap</span><span class="p">[</span><span class="n">col_name</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pkmap</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">PrimaryKeyNotFounded</span><span class="p">(</span><span class="n">tableName</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">field</span><span class="p">,</span> <span class="n">nullAllowed</span><span class="p">,</span> <span class="n">default</span><span class="p">,</span> <span class="n">data_type</span><span class="p">,</span> <span class="n">data_len</span><span class="p">,</span>
<span class="n">data_scale</span><span class="p">)</span> <span class="ow">in</span> <span class="n">colData</span><span class="p">:</span>
<span class="c1"># id is defined as primary key --> ok</span>
<span class="c1"># We let sqlobject raise error if the 'id' is used</span>
<span class="c1"># for another column.</span>
<span class="n">field_name</span> <span class="o">=</span> <span class="n">field</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="k">if</span> <span class="p">(</span><span class="n">field_name</span> <span class="o">==</span> <span class="n">soClass</span><span class="o">.</span><span class="n">sqlmeta</span><span class="o">.</span><span class="n">idName</span><span class="p">)</span> <span class="ow">and</span> <span class="n">pkmap</span><span class="p">[</span><span class="n">field_name</span><span class="p">]:</span>
<span class="k">continue</span>
<span class="n">colClass</span><span class="p">,</span> <span class="n">kw</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">guessClass</span><span class="p">(</span><span class="n">data_type</span><span class="p">,</span> <span class="n">data_len</span><span class="p">,</span> <span class="n">data_scale</span><span class="p">)</span>
<span class="n">kw</span><span class="p">[</span><span class="s1">'name'</span><span class="p">]</span> <span class="o">=</span> <span class="n">field_name</span>
<span class="n">kw</span><span class="p">[</span><span class="s1">'dbName'</span><span class="p">]</span> <span class="o">=</span> <span class="n">field</span>
<span class="k">if</span> <span class="n">nullAllowed</span> <span class="o">==</span> <span class="s1">'Y'</span><span class="p">:</span>
<span class="n">nullAllowed</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">nullAllowed</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">kw</span><span class="p">[</span><span class="s1">'notNone'</span><span class="p">]</span> <span class="o">=</span> <span class="n">nullAllowed</span>
<span class="k">if</span> <span class="n">default</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">kw</span><span class="p">[</span><span class="s1">'default'</span><span class="p">]</span> <span class="o">=</span> <span class="n">default</span>
<span class="k">if</span> <span class="n">field_name</span> <span class="ow">in</span> <span class="n">keymap</span><span class="p">:</span>
<span class="n">kw</span><span class="p">[</span><span class="s1">'foreignKey'</span><span class="p">]</span> <span class="o">=</span> <span class="n">keymap</span><span class="p">[</span><span class="n">field_name</span><span class="p">]</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">colClass</span><span class="p">(</span><span class="o">**</span><span class="n">kw</span><span class="p">))</span>
<span class="k">return</span> <span class="n">results</span>
</div>
<span class="n">_numericTypes</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'INTEGER'</span><span class="p">,</span> <span class="s1">'INT'</span><span class="p">,</span> <span class="s1">'SMALLINT'</span><span class="p">]</span>
<span class="n">_dateTypes</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'DATE'</span><span class="p">,</span> <span class="s1">'TIME'</span><span class="p">,</span> <span class="s1">'TIMESTAMP'</span><span class="p">]</span>
<div class="viewcode-block" id="MaxdbConnection.guessClass"><a class="viewcode-back" href="../../../api/sqlobject.maxdb.maxdbconnection.html#sqlobject.maxdb.maxdbconnection.MaxdbConnection.guessClass">[docs]</a> <span class="k">def</span> <span class="nf">guessClass</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">t</span><span class="p">,</span> <span class="n">flength</span><span class="p">,</span> <span class="n">fscale</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> An internal method that tries to figure out what Col subclass</span>
<span class="sd"> is appropriate given whatever introspective information is</span>
<span class="sd"> available -- both very database-specific.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_numericTypes</span><span class="p">:</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">IntCol</span><span class="p">,</span> <span class="p">{}</span>
<span class="c1"># The type returned by the sapdb library for LONG is</span>
<span class="c1"># SapDB_LongReader To get the data call the read member with</span>
<span class="c1"># desired size (default =-1 means get all)</span>
<span class="k">elif</span> <span class="n">t</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">'LONG'</span><span class="p">)</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">StringCol</span><span class="p">,</span> <span class="p">{</span><span class="s1">'length'</span><span class="p">:</span> <span class="n">flength</span><span class="p">,</span>
<span class="s1">'varchar'</span><span class="p">:</span> <span class="kc">False</span><span class="p">}</span>
<span class="k">elif</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dateTypes</span><span class="p">:</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">DateTimeCol</span><span class="p">,</span> <span class="p">{}</span>
<span class="k">elif</span> <span class="n">t</span> <span class="o">==</span> <span class="s1">'FIXED'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">CurrencyCol</span><span class="p">,</span> <span class="p">{</span><span class="s1">'size'</span><span class="p">:</span> <span class="n">flength</span><span class="p">,</span>
<span class="s1">'precision'</span><span class="p">:</span> <span class="n">fscale</span><span class="p">}</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">col</span><span class="o">.</span><span class="n">Col</span><span class="p">,</span> <span class="p">{}</span>
</pre></div></div></div>
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