Sophie

Sophie

distrib > Mageia > 6 > armv5tl > media > core-updates > by-pkgid > 768f7d9f703884aa2562bf0a651086df > files > 2261

qtbase5-doc-5.9.4-1.1.mga6.noarch.rpm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qsqlerror.cpp -->
  <title>QSqlError Class | Qt SQL 5.9</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.9</td><td ><a href="qtsql-index.html">Qt SQL</a></td><td ><a href="qtsql-module.html">C++ Classes</a></td><td >QSqlError</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">QSqlError Class</h1>
<!-- $$$QSqlError-brief -->
<p>The <a href="qsqlerror.html">QSqlError</a> class provides SQL database error information. <a href="#details">More...</a></p>
<!-- @@@QSqlError -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QSqlError&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += sql</td></tr></table></div><ul>
<li><a href="qsqlerror-members.html">List of all members, including inherited members</a></li>
<li><a href="qsqlerror-obsolete.html">Obsolete members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#ErrorType-enum">ErrorType</a></b> { NoError, ConnectionError, StatementError, TransactionError, UnknownError }</td></tr>
</table></div>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#QSqlError">QSqlError</a></b>(const QString &amp;<i>driverText</i> = QString(), const QString &amp;<i>databaseText</i> = QString(), ErrorType <i>type</i> = NoError, const QString &amp;<i>code</i> = QString())</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#QSqlError-2">QSqlError</a></b>(const QSqlError &amp;<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#dtor.QSqlError">~QSqlError</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#databaseText">databaseText</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#driverText">driverText</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#isValid">isValid</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#nativeErrorCode">nativeErrorCode</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#text">text</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> ErrorType </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#type">type</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#operator-not-eq">operator!=</a></b>(const QSqlError &amp;<i>other</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QSqlError &amp;</td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#operator-eq">operator=</a></b>(const QSqlError &amp;<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qsqlerror.html#operator-eq-eq">operator==</a></b>(const QSqlError &amp;<i>other</i>) const</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QSqlError-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qsqlerror.html">QSqlError</a> class provides SQL database error information.</p>
<p>A <a href="qsqlerror.html">QSqlError</a> object can provide database-specific error data, including the <a href="qsqlerror.html#driverText">driverText</a>() and <a href="qsqlerror.html#databaseText">databaseText</a>() messages (or both concatenated together as <a href="qsqlerror.html#text">text</a>()), and the <a href="qsqlerror.html#nativeErrorCode">nativeErrorCode</a>() and <a href="qsqlerror.html#type">type</a>().</p>
</div>
<p><b>See also </b><a href="qsqldatabase.html#lastError">QSqlDatabase::lastError</a>() and <a href="qsqlquery.html#lastError">QSqlQuery::lastError</a>().</p>
<!-- @@@QSqlError -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$ErrorType$$$NoError$$$ConnectionError$$$StatementError$$$TransactionError$$$UnknownError -->
<h3 class="fn" id="ErrorType-enum"><a name="ErrorType-enum"></a>enum QSqlError::<span class="name">ErrorType</span></h3>
<p>This enum type describes the context in which the error occurred, e.g&#x2e;, a connection error, a statement error, etc.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QSqlError::NoError</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">No error occurred.</td></tr>
<tr><td class="topAlign"><code>QSqlError::ConnectionError</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">Connection error.</td></tr>
<tr><td class="topAlign"><code>QSqlError::StatementError</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">SQL statement syntax error.</td></tr>
<tr><td class="topAlign"><code>QSqlError::TransactionError</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">Transaction failed error.</td></tr>
<tr><td class="topAlign"><code>QSqlError::UnknownError</code></td><td class="topAlign tblval"><code>4</code></td><td class="topAlign">Unknown error.</td></tr>
</table></div>
<!-- @@@ErrorType -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QSqlError[overload1]$$$QSqlErrorconstQString&constQString&ErrorTypeconstQString& -->
<h3 class="fn" id="QSqlError"><a name="QSqlError"></a>QSqlError::<span class="name">QSqlError</span>(const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &amp;<i>driverText</i> = QString(), const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &amp;<i>databaseText</i> = QString(), <span class="type"><a href="qsqlerror.html#ErrorType-enum">ErrorType</a></span> <i>type</i> = NoError, const <span class="type"><a href="../qtcore/qstring.html">QString</a></span> &amp;<i>code</i> = QString())</h3>
<p>Constructs an error containing the driver error text <i>driverText</i>, the database-specific error text <i>databaseText</i>, the type <i>type</i> and the error code <i>code</i>.</p>
<!-- @@@QSqlError -->
<!-- $$$QSqlError$$$QSqlErrorconstQSqlError& -->
<h3 class="fn" id="QSqlError-2"><a name="QSqlError-2"></a>QSqlError::<span class="name">QSqlError</span>(const <span class="type"><a href="qsqlerror.html#QSqlError">QSqlError</a></span> &amp;<i>other</i>)</h3>
<p>Creates a copy of <i>other</i>.</p>
<!-- @@@QSqlError -->
<!-- $$$~QSqlError[overload1]$$$~QSqlError -->
<h3 class="fn" id="dtor.QSqlError"><a name="dtor.QSqlError"></a>QSqlError::<span class="name">~QSqlError</span>()</h3>
<p>Destroys the object and frees any allocated resources.</p>
<!-- @@@~QSqlError -->
<!-- $$$databaseText[overload1]$$$databaseText -->
<h3 class="fn" id="databaseText"><a name="databaseText"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSqlError::<span class="name">databaseText</span>() const</h3>
<p>Returns the text of the error as reported by the database. This may contain database-specific descriptions; it may be empty.</p>
<p><b>See also </b><a href="qsqlerror-obsolete.html#setDatabaseText">setDatabaseText</a>(), <a href="qsqlerror.html#driverText">driverText</a>(), and <a href="qsqlerror.html#text">text</a>().</p>
<!-- @@@databaseText -->
<!-- $$$driverText[overload1]$$$driverText -->
<h3 class="fn" id="driverText"><a name="driverText"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSqlError::<span class="name">driverText</span>() const</h3>
<p>Returns the text of the error as reported by the driver. This may contain database-specific descriptions. It may also be empty.</p>
<p><b>See also </b><a href="qsqlerror-obsolete.html#setDriverText">setDriverText</a>(), <a href="qsqlerror.html#databaseText">databaseText</a>(), and <a href="qsqlerror.html#text">text</a>().</p>
<!-- @@@driverText -->
<!-- $$$isValid[overload1]$$$isValid -->
<h3 class="fn" id="isValid"><a name="isValid"></a><span class="type">bool</span> QSqlError::<span class="name">isValid</span>() const</h3>
<p>Returns <code>true</code> if an error is set, otherwise false.</p>
<p>Example:</p>
<pre class="cpp">

  <span class="type"><a href="qsqlquerymodel.html">QSqlQueryModel</a></span> model;
  model<span class="operator">.</span>setQuery(<span class="string">&quot;select * from myTable&quot;</span>);
  <span class="keyword">if</span> (model<span class="operator">.</span>lastError()<span class="operator">.</span>isValid())
      <a href="../qtcore/qtglobal.html#qDebug">qDebug</a>() <span class="operator">&lt;</span><span class="operator">&lt;</span> model<span class="operator">.</span>lastError();

</pre>
<p><b>See also </b><a href="qsqlerror.html#type">type</a>().</p>
<!-- @@@isValid -->
<!-- $$$nativeErrorCode[overload1]$$$nativeErrorCode -->
<h3 class="fn" id="nativeErrorCode"><a name="nativeErrorCode"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSqlError::<span class="name">nativeErrorCode</span>() const</h3>
<p>Returns the database-specific error code, or an empty string if it cannot be determined.</p>
<!-- @@@nativeErrorCode -->
<!-- $$$text[overload1]$$$text -->
<h3 class="fn" id="text"><a name="text"></a><span class="type"><a href="../qtcore/qstring.html">QString</a></span> QSqlError::<span class="name">text</span>() const</h3>
<p>This is a convenience function that returns <a href="qsqlerror.html#databaseText">databaseText</a>() and <a href="qsqlerror.html#driverText">driverText</a>() concatenated into a single string.</p>
<p><b>See also </b><a href="qsqlerror.html#driverText">driverText</a>() and <a href="qsqlerror.html#databaseText">databaseText</a>().</p>
<!-- @@@text -->
<!-- $$$type[overload1]$$$type -->
<h3 class="fn" id="type"><a name="type"></a><span class="type"><a href="qsqlerror.html#ErrorType-enum">ErrorType</a></span> QSqlError::<span class="name">type</span>() const</h3>
<p>Returns the error type, or -1 if the type cannot be determined.</p>
<p><b>See also </b><a href="qsqlerror-obsolete.html#setType">setType</a>().</p>
<!-- @@@type -->
<!-- $$$operator!=[overload1]$$$operator!=constQSqlError& -->
<h3 class="fn" id="operator-not-eq"><a name="operator-not-eq"></a><span class="type">bool</span> QSqlError::<span class="name">operator!=</span>(const <span class="type"><a href="qsqlerror.html#QSqlError">QSqlError</a></span> &amp;<i>other</i>) const</h3>
<p>Compare the <i>other</i> error's values to this error and returns <code>true</code> if it is not equal.</p>
<!-- @@@operator!= -->
<!-- $$$operator=[overload1]$$$operator=constQSqlError& -->
<h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qsqlerror.html#QSqlError">QSqlError</a></span> &amp;QSqlError::<span class="name">operator=</span>(const <span class="type"><a href="qsqlerror.html#QSqlError">QSqlError</a></span> &amp;<i>other</i>)</h3>
<p>Assigns the <i>other</i> error's values to this error.</p>
<!-- @@@operator= -->
<!-- $$$operator==[overload1]$$$operator==constQSqlError& -->
<h3 class="fn" id="operator-eq-eq"><a name="operator-eq-eq"></a><span class="type">bool</span> QSqlError::<span class="name">operator==</span>(const <span class="type"><a href="qsqlerror.html#QSqlError">QSqlError</a></span> &amp;<i>other</i>) const</h3>
<p>Compare the <i>other</i> error's values to this error and returns <code>true</code>, if it equal.</p>
<!-- @@@operator== -->
</div>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</acronym> 2017 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
   of their respective owners. </p>
</div>
</body>
</html>

Perl :: Catalyst :: PostgreSQL :: RPM Valid HTML 4.01 Transitional