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<title>PlaceSearchSuggestionModel | QtLocation 5.2</title>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#methods">Methods</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">PlaceSearchSuggestionModel</h1>
<span class="subtitle"></span>
<!-- $$$PlaceSearchSuggestionModel-brief -->
<p>Provides access to search term suggestions. <a href="#details">More...</a></p>
<!-- @@@PlaceSearchSuggestionModel -->
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> </b><tt>import QtLocation 5.0</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt Location 5.0</td></tr></table><ul>
<li><a href="qml-qtlocation-placesearchsuggestionmodel-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#plugin-prop">plugin</a></b></b> : Plugin</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#searchArea-prop">searchArea</a></b></b> : geoshape</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#searchTerm-prop">searchTerm</a></b></b> : string</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a></b></b> : enum</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#suggestions-prop">suggestions</a></b></b> : stringlist</li>
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<a name="methods"></a>
<h2>Methods</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#cancel-method">cancel</a></b></b>()</li>
<li class="fn">string <b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#errorString-method">errorString</a></b></b>()</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#reset-method">reset</a></b></b>()</li>
<li class="fn"><b><b><a href="qml-qtlocation-placesearchsuggestionmodel.html#update-method">update</a></b></b>()</li>
</ul>
<!-- $$$PlaceSearchSuggestionModel-description -->
<a name="details"></a>
<h2>Detailed Description</h2>
<p>The PlaceSearchSuggestionModel can be used to provide search term suggestions as the user enters their search term. The properties of this model should match that of the <a href="qml-qtlocation-placesearchmodel.html">PlaceSearchModel</a>, which will be used to perform the actual search query, to ensure that the search suggestion results are relevant.</p>
<p>There are two ways of accessing the data provided by this model, either through the <a href="qml-qtlocation-placesearchsuggestionmodel.html#suggestions-prop">suggestions</a> property or through views and delegates. The latter is the preferred method.</p>
<p>The <a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a> properties can be used to access paged suggestions. When the <a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a> properties are set the suggestions between <a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a> and (<a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a> + <a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a> - 1) will be returned. Support for paging may vary from plugin to plugin.</p>
<p>The model returns data for the following roles:</p>
<table class="generic">
<thead><tr class="qt-style"><th >Role</th><th >Type</th><th >Description</th></tr></thead>
<tr valign="top" class="odd"><td >suggestion</td><td >string</td><td >Suggested search term.</td></tr>
</table>
<p>The following example shows how to use the PlaceSearchSuggestionModel to get suggested search terms from a partial search term. The <a href="qml-qtlocation-placesearchsuggestionmodel.html#searchArea-prop">searchArea</a> is set to match what would be used to perform the actual place search with <a href="qml-qtlocation-placesearchmodel.html">PlaceSearchModel</a>.</p>
<pre class="qml">import QtQuick 2.0
import QtPositioning 5.2
import QtLocation 5.0
<span class="type">PlaceSearchSuggestionModel</span> {
<span class="name">id</span>: <span class="name">suggestionModel</span>
<span class="name">plugin</span>: <span class="name">myPlugin</span>
<span class="comment">// Brisbane</span>
<span class="name">searchArea</span>: <span class="name">QtLocation</span>.<span class="name">circle</span>(<span class="name">QtLocation</span>.<span class="name">coordinate</span>(-<span class="number">27.46778</span>, <span class="number">153.02778</span>))
<span class="name">onSearchTermChanged</span>: <span class="name">update</span>()
}
<span class="type">ListView</span> {
<span class="name">model</span>: <span class="name">suggestionModel</span>
<span class="name">delegate</span>: <span class="name">Text</span> { <span class="name">text</span>: <span class="name">suggestion</span> }
}</pre>
<p><b>See also </b><a href="qml-qtlocation-placesearchmodel.html">PlaceSearchModel</a> and <a href="qplacemanager.html">QPlaceManager</a>.</p>
<!-- @@@PlaceSearchSuggestionModel -->
<h2>Property Documentation</h2>
<!-- $$$limit -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="limit-prop"></a><span class="name">limit</span> : <span class="type">int</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the limit of the number of items that will be returned.</p>
<p><b>See also </b><a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a>.</p>
</div></div><!-- @@@limit -->
<br/>
<!-- $$$offset -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="offset-prop"></a><span class="name">offset</span> : <span class="type">int</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the index of the first item in the model.</p>
<p><b>See also </b><a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a>.</p>
</div></div><!-- @@@offset -->
<br/>
<!-- $$$plugin -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="plugin-prop"></a><span class="name">plugin</span> : <span class="type"><a href="qml-qtlocation-plugin.html">Plugin</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the provider <a href="qml-qtlocation-plugin.html">Plugin</a> which will be used to perform the search.</p>
</div></div><!-- @@@plugin -->
<br/>
<!-- $$$searchArea -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="searchArea-prop"></a><span class="name">searchArea</span> : <span class="type">geoshape</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the search area. Search suggestion results returned by the model will be relevant to the given search area.</p>
<p>If this property is set to a geocircle its radius property may be left unset, in which case the <a href="qml-qtlocation-plugin.html">Plugin</a> will choose an appropriate radius for the search.</p>
</div></div><!-- @@@searchArea -->
<br/>
<!-- $$$searchTerm -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="searchTerm-prop"></a><span class="name">searchTerm</span> : <span class="type">string</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the partial search term used in query.</p>
</div></div><!-- @@@searchTerm -->
<br/>
<!-- $$$status -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="status-prop"></a><span class="name">status</span> : <span class="type">enum</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the status of the model. It can be one of:</p>
<table class="generic">
<tr valign="top" class="odd"><td ><a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Null</td><td >No search query has been executed. The model is empty.</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Ready</td><td >The search query has completed, and the results are available.</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Loading</td><td >A search query is currently being executed.</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Error</td><td >An error occurred when executing the previous search query.</td></tr>
</table>
</div></div><!-- @@@status -->
<br/>
<!-- $$$suggestions -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="suggestions-prop"></a><span class="name">suggestions</span> : <span class="type">stringlist</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the list of predicted search terms that the model currently has.</p>
</div></div><!-- @@@suggestions -->
<br/>
<h2>Method Documentation</h2>
<!-- $$$cancel -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="cancel-method"></a><span class="name">cancel</span>()</p></td></tr></table></div><div class="qmldoc"><p>Cancels an ongoing search suggestion operation immediately and sets the model status to <a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Ready. The model retains any search suggestions it had before the operation was started.</p>
<p>If an operation is not ongoing, invoking cancel() has no effect.</p>
<p><b>See also </b><a href="qml-qtlocation-placesearchsuggestionmodel.html#update-method">update()</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a>.</p>
</div></div><!-- @@@cancel -->
<br/>
<!-- $$$errorString -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="errorString-method"></a><span class="type">string</span> <span class="name">errorString</span>() const</p></td></tr></table></div><div class="qmldoc"><p>This read-only property holds the textual presentation of latest search suggestion model error. If no error has occurred, or if the model was cleared, an empty string is returned.</p>
<p>An empty string may also be returned if an error occurred which has no associated textual representation.</p>
</div></div><!-- @@@errorString -->
<br/>
<!-- $$$reset -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="reset-method"></a><span class="name">reset</span>()</p></td></tr></table></div><div class="qmldoc"><p>Resets the model. All search suggestions are cleared, any outstanding requests are aborted and possible errors are cleared. Model status will be set to <a href="qml-qtlocation-placesearchsuggestionmodel.html">PlaceSearchSuggestionModel</a>.Null.</p>
</div></div><!-- @@@reset -->
<br/>
<!-- $$$update -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="update-method"></a><span class="name">update</span>()</p></td></tr></table></div><div class="qmldoc"><p>Updates the model based on the provided query parameters. The model will be populated with a list of search suggestions for the partial <a href="qml-qtlocation-placesearchsuggestionmodel.html#searchTerm-prop">searchTerm</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#searchArea-prop">searchArea</a>. If the <a href="qml-qtlocation-placesearchsuggestionmodel.html#plugin-prop">plugin</a> supports it, other paramaters such as <a href="qml-qtlocation-placesearchsuggestionmodel.html#limit-prop">limit</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#offset-prop">offset</a> may be specified. <tt>update()</tt> submits the set of parameters to the <a href="qml-qtlocation-placesearchsuggestionmodel.html#plugin-prop">plugin</a> to process.</p>
<p>While the model is updating the <a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a> of the model is set to <tt>PlaceSearchSuggestionModel.Loading</tt>. If the model is successfully updated, the <a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a> is set to <tt>PlaceSearchSuggestionModel.Ready</tt>, while if it unsuccessfully completes, the <a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a> is set to <tt>PlaceSearchSuggestionModel.Error</tt> and the model cleared.</p>
<p>This example shows use of the model</p>
<pre class="cpp">PlaceSeachSuggestionModel {
id: model
plugin: backendPlugin
searchArea: <span class="type">QtPositioning</span><span class="operator">.</span>circle(<span class="type">QtPositioning</span><span class="operator">.</span>coordinate(<span class="number">10</span><span class="operator">,</span> <span class="number">10</span>))
<span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
}
MouseArea {
<span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
onClicked: {
model<span class="operator">.</span>searchTerm <span class="operator">=</span> <span class="string">"piz"</span>
model<span class="operator">.</span>searchArea<span class="operator">.</span>center<span class="operator">.</span>latitude <span class="operator">=</span> <span class="operator">-</span><span class="number">27.5</span>;
model<span class="operator">.</span>searchArea<span class="operator">.</span>cetner<span class="operator">.</span>longitude <span class="operator">=</span> <span class="number">153</span>;
model<span class="operator">.</span>update();
}
}</pre>
<p>A more detailed example can be found in the in <a href="qtlocation-places-example.html#presenting-search-suggestions">Places (QML)</a> example.</p>
<p><b>See also </b><a href="qml-qtlocation-placesearchsuggestionmodel.html#cancel-method">cancel()</a> and <a href="qml-qtlocation-placesearchsuggestionmodel.html#status-prop">status</a>.</p>
</div></div><!-- @@@update -->
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