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<h1>Source code for sqlobject.inheritance.tests.test_foreignKey</h1><div class="highlight"><pre>
<span></span><span class="kn">from</span> <span class="nn">sqlobject</span> <span class="k">import</span> <span class="n">ForeignKey</span><span class="p">,</span> <span class="n">SQLObject</span><span class="p">,</span> <span class="n">StringCol</span>
<span class="kn">from</span> <span class="nn">sqlobject.tests.dbtest</span> <span class="k">import</span> <span class="n">setupClass</span>
<span class="kn">from</span> <span class="nn">sqlobject.inheritance</span> <span class="k">import</span> <span class="n">InheritableSQLObject</span>
<div class="viewcode-block" id="Note"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.Note">[docs]</a><span class="k">class</span> <span class="nc">Note</span><span class="p">(</span><span class="n">SQLObject</span><span class="p">):</span>
<span class="n">text</span> <span class="o">=</span> <span class="n">StringCol</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="PersonWithNotes"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.PersonWithNotes">[docs]</a><span class="k">class</span> <span class="nc">PersonWithNotes</span><span class="p">(</span><span class="n">InheritableSQLObject</span><span class="p">):</span>
<span class="n">firstName</span> <span class="o">=</span> <span class="n">StringCol</span><span class="p">()</span>
<span class="n">lastName</span> <span class="o">=</span> <span class="n">StringCol</span><span class="p">()</span>
<span class="n">note</span> <span class="o">=</span> <span class="n">ForeignKey</span><span class="p">(</span><span class="s2">"Note"</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Paper"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.Paper">[docs]</a><span class="k">class</span> <span class="nc">Paper</span><span class="p">(</span><span class="n">SQLObject</span><span class="p">):</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">StringCol</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="EmployeeWithNotes"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.EmployeeWithNotes">[docs]</a><span class="k">class</span> <span class="nc">EmployeeWithNotes</span><span class="p">(</span><span class="n">PersonWithNotes</span><span class="p">):</span>
<span class="n">_inheritable</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">paper</span> <span class="o">=</span> <span class="n">ForeignKey</span><span class="p">(</span><span class="s2">"Paper"</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="test_foreignKey"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.test_foreignKey">[docs]</a><span class="k">def</span> <span class="nf">test_foreignKey</span><span class="p">():</span>
<span class="n">setupClass</span><span class="p">([</span><span class="n">Note</span><span class="p">,</span> <span class="n">PersonWithNotes</span><span class="p">,</span> <span class="n">Paper</span><span class="p">,</span> <span class="n">EmployeeWithNotes</span><span class="p">],</span> <span class="n">force</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="n">note</span> <span class="o">=</span> <span class="n">Note</span><span class="p">(</span><span class="n">text</span><span class="o">=</span><span class="s2">"person"</span><span class="p">)</span>
<span class="n">PersonWithNotes</span><span class="p">(</span><span class="n">firstName</span><span class="o">=</span><span class="s1">'Oneof'</span><span class="p">,</span> <span class="n">lastName</span><span class="o">=</span><span class="s1">'Authors'</span><span class="p">,</span> <span class="n">note</span><span class="o">=</span><span class="n">note</span><span class="p">)</span>
<span class="n">note</span> <span class="o">=</span> <span class="n">Note</span><span class="p">(</span><span class="n">text</span><span class="o">=</span><span class="s2">"employee"</span><span class="p">)</span>
<span class="n">EmployeeWithNotes</span><span class="p">(</span><span class="n">firstName</span><span class="o">=</span><span class="s1">'Project'</span><span class="p">,</span> <span class="n">lastName</span><span class="o">=</span><span class="s1">'Leader'</span><span class="p">,</span> <span class="n">note</span><span class="o">=</span><span class="n">note</span><span class="p">)</span>
<span class="n">paper</span> <span class="o">=</span> <span class="n">Paper</span><span class="p">(</span><span class="n">content</span><span class="o">=</span><span class="s2">"secret"</span><span class="p">)</span>
<span class="n">EmployeeWithNotes</span><span class="p">(</span><span class="n">firstName</span><span class="o">=</span><span class="s1">'Senior'</span><span class="p">,</span> <span class="n">lastName</span><span class="o">=</span><span class="s1">'Clerk'</span><span class="p">,</span> <span class="n">paper</span><span class="o">=</span><span class="n">paper</span><span class="p">)</span>
<span class="n">PersonWithNotes</span><span class="p">(</span><span class="n">firstName</span><span class="o">=</span><span class="s1">'Some'</span><span class="p">,</span> <span class="n">lastName</span><span class="o">=</span><span class="s1">'Person'</span><span class="p">)</span>
<span class="n">person</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">person</span><span class="p">,</span> <span class="n">PersonWithNotes</span><span class="p">)</span> <span class="ow">and</span> \
<span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">person</span><span class="p">,</span> <span class="n">EmployeeWithNotes</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">person</span><span class="o">.</span><span class="n">note</span><span class="o">.</span><span class="n">text</span> <span class="o">==</span> <span class="s2">"person"</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">employee</span><span class="p">,</span> <span class="n">EmployeeWithNotes</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">note</span><span class="o">.</span><span class="n">text</span> <span class="o">==</span> <span class="s2">"employee"</span>
<span class="n">save_employee</span> <span class="o">=</span> <span class="n">employee</span>
<span class="c1"># comparison to None needed to build the right SQL expression</span>
<span class="n">persons</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">noteID</span> <span class="o">!=</span> <span class="kc">None</span><span class="p">)</span> <span class="c1"># noqa</span>
<span class="k">assert</span> <span class="n">persons</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">2</span>
<span class="n">persons</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">noteID</span><span class="o">=</span><span class="n">person</span><span class="o">.</span><span class="n">note</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">persons</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="c1"># comparison to None needed to build the right SQL expression</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">select</span><span class="p">(</span>
<span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">q</span><span class="o">.</span><span class="n">noteID</span> <span class="o">!=</span> <span class="kc">None</span><span class="p">)</span> <span class="c1"># noqa</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">persons</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">noteID</span><span class="o">=</span><span class="n">person</span><span class="o">.</span><span class="n">note</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">persons</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">persons</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">note</span><span class="o">=</span><span class="n">person</span><span class="o">.</span><span class="n">note</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">persons</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">persons</span> <span class="o">=</span> <span class="n">PersonWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">note</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">persons</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">2</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">paperID</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">paper</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">(</span><span class="n">note</span><span class="o">=</span><span class="n">save_employee</span><span class="o">.</span><span class="n">note</span><span class="p">,</span>
<span class="n">paper</span><span class="o">=</span><span class="n">save_employee</span><span class="o">.</span><span class="n">paper</span><span class="p">)</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
<span class="n">employee</span> <span class="o">=</span> <span class="n">EmployeeWithNotes</span><span class="o">.</span><span class="n">selectBy</span><span class="p">()</span>
<span class="k">assert</span> <span class="n">employee</span><span class="o">.</span><span class="n">count</span><span class="p">()</span> <span class="o">==</span> <span class="mi">2</span>
</div>
<div class="viewcode-block" id="SOTestInhBase"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.SOTestInhBase">[docs]</a><span class="k">class</span> <span class="nc">SOTestInhBase</span><span class="p">(</span><span class="n">InheritableSQLObject</span><span class="p">):</span>
<span class="k">pass</span>
</div>
<div class="viewcode-block" id="SOTestInhFKey"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.SOTestInhFKey">[docs]</a><span class="k">class</span> <span class="nc">SOTestInhFKey</span><span class="p">(</span><span class="n">SOTestInhBase</span><span class="p">):</span>
<span class="n">base</span> <span class="o">=</span> <span class="n">ForeignKey</span><span class="p">(</span><span class="s2">"SOTestInhBase"</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="test_foreignKey2"><a class="viewcode-back" href="../../../../api/sqlobject.inheritance.tests.test_foreignKey.html#sqlobject.inheritance.tests.test_foreignKey.test_foreignKey2">[docs]</a><span class="k">def</span> <span class="nf">test_foreignKey2</span><span class="p">():</span>
<span class="n">setupClass</span><span class="p">([</span><span class="n">SOTestInhBase</span><span class="p">,</span> <span class="n">SOTestInhFKey</span><span class="p">])</span>
<span class="n">test</span> <span class="o">=</span> <span class="n">SOTestInhBase</span><span class="p">()</span>
<span class="n">SOTestInhFKey</span><span class="p">(</span><span class="n">base</span><span class="o">=</span><span class="n">test</span><span class="p">)</span>
</pre></div></div>
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