Databases
StackOverflow2013
Postsdbo
POModifying items of boost multi index container
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POModifying items of boost multi index container
    primarykey
    data
    text
    <pre><code>struct tagEnumdef{}; struct tagName{}; struct tagWidget{}; template&lt; class type &gt; class ParamTags; template&lt;&gt; class ParamTags&lt;int&gt; { public: typedef tagEnumdef tag; }; template&lt;&gt; class ParamTags&lt;QString&gt; { public: typedef tagName tag; }; template&lt;&gt; class ParamTags&lt;QWidget*&gt;{ public: typedef tagWidget tag; }; typedef boost::multi_index::multi_index_container &lt; ParamRegistrationEntry, boost::multi_index::indexed_by &lt; boost::multi_index::ordered_unique&lt; boost::multi_index::tag&lt;tagEnumdef&gt;, BOOST_MULTI_INDEX_CONST_MEM_FUN( ParamRegistrationEntry, int, enumdef ) &gt;, boost::multi_index::ordered_unique&lt; boost::multi_index::tag&lt;tagName&gt;, BOOST_MULTI_INDEX_CONST_MEM_FUN( ParamRegistrationEntry, QString, name ) &gt;, boost::multi_index::ordered_unique&lt; boost::multi_index::tag&lt;tagWidget&gt;, BOOST_MULTI_INDEX_CONST_MEM_FUN( ParamRegistrationEntry, QWidget*, widget ) &gt; &gt; &gt; &gt; ParamRegisterIndexContainer; T t_; // int, QString or QWidget* ParamRegisterIndexContainer* const register_; register_-&gt;modify( register_-&gt;get&lt;ParamTags&lt;T&gt;::tag&gt;().find( t_ ), ... ); // C2664 error C2664: 'bool boost::multi_index::detail::ordered_index&lt;KeyFromValue,Compare,SuperMeta,TagList,Category&gt;::modify&lt;boost::lambda::lambda_functor&lt;T&gt;&gt;(boost::multi_index::detail::bidir_node_iterator&lt;Node&gt;,Modifier)' : cannot convert parameter 1 from 'boost::multi_index::detail::bidir_node_iterator&lt;Node&gt;' to 'boost::multi_index::detail::bidir_node_iterator&lt;Node&gt;' With Node=ordered_index_node&lt;index_node_base&lt;...&gt;&gt; Node=ordered_index_node&lt;ordered_index_node&lt;ordered_index_node&lt;index_node_base&lt;...&gt;&gt; </code></pre> <p>I've stripped down parts which shouldn't matter. Are the 3 ordered_index_node's related to the 3 keys I've defined in the container? I get an iterator from 1 index with get(), but modify() seems to require some sort of combination?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USPieter
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload