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<h1> Ajax table (via <code>data</code> function)</h1>
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<h2>Introduction</h2>
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<p>You can customize a single <a href="../../classes/vuedatatable.html">VueDatatable</a> by providing a <em>data function</em> instead of the normal array of objects. This function should be a valid <a href="../../globals.html#tdatafn">TDataFn</a>.</p>
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If you want to customize the behavior of <b>multiple tables</b>, you may want to check how to <a href="./ajax-handler.html">use custom handlers</a>. You may also want to <a href="./limit-rows-processing.html">debounce your data processing</a> to avoid requests spamming.
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<div id="demo-app" class="tutorial-ajax-data"><div class="row"><div class="col-xs-12 table-responsive"><datatable :columns="columns" :data="getData"></datatable><datatable-pager v-model="page"></datatable-pager></div></div></div>
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<h2>Code</h2>
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<h3>Typescript</h3>
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<pre><code class="language-ts"><span class="hljs-keyword">import</span> axios <span class="hljs-keyword">from</span> <span class="hljs-string">'axios'</span>;
<span class="hljs-keyword">import</span> Vue <span class="hljs-keyword">from</span> <span class="hljs-string">'vue'</span>;
<span class="hljs-keyword">import</span> { IDataFnParams, ITableContentParam, TColumnsDefinition } <span class="hljs-keyword">from</span> <span class="hljs-string">'vuejs-datatable'</span>;
<span class="hljs-keyword">import</span> { colFieldToStr, formatUtcDate, ISpaceXLaunch, makeQueryStringFromObj } <span class="hljs-keyword">from</span> <span class="hljs-string">'../utils'</span>;
<span class="hljs-keyword">const</span> API_URL = <span class="hljs-string">'https://api.spacexdata.com/v3/launches/upcoming'</span>;
<span class="hljs-keyword">const</span> app = <span class="hljs-keyword">new</span> Vue( {
el: <span class="hljs-string">'#demo-app'</span>,
data: {
columns: [
{ label: <span class="hljs-string">'Flight number'</span>, field: <span class="hljs-string">'flight_number'</span> },
{ label: <span class="hljs-string">'Mission name'</span>, field: <span class="hljs-string">'mission_name'</span> },
{ label: <span class="hljs-string">'Launch date'</span>, field: <span class="hljs-string">'launch_date_utc'</span>, representedAs: <span class="hljs-function"><span class="hljs-params">row</span> =></span> formatUtcDate( <span class="hljs-keyword">new</span> <span class="hljs-built_in">Date</span>( row.launch_date_utc ) ) },
{ label: <span class="hljs-string">'Rocket type'</span>, field: <span class="hljs-string">'rocket.rocket_name'</span>, sortable: <span class="hljs-literal">false</span> },
{ label: <span class="hljs-string">'Launch site'</span>, field: <span class="hljs-string">'launch_site.site_name_long'</span>, sortable: <span class="hljs-literal">false</span> },
{
field: <span class="hljs-string">'links.mission_patch_small'</span>,
interpolate: <span class="hljs-literal">true</span>,
label: <span class="hljs-string">'Mission patch'</span>,
representedAs: <span class="hljs-function"><span class="hljs-params">row</span> =></span> row.links.mission_patch_small ?
<span class="hljs-string">`<img src="<span class="hljs-subst">${ row.links.mission_patch_small }</span>" alt="<span class="hljs-subst">${ row.mission_name }</span> patch" style="height: 6em;"/>`</span> :
<span class="hljs-string">`<img src="https://www.gvmc.gov.in/wss/images/noimageavailable.png" alt="No patch for mission &quot;<span class="hljs-subst">${ row.mission_name }</span>&quot; available" style="height: 6em;"/>`</span>,
sortable: <span class="hljs-literal">false</span>,
},
{
field: <span class="hljs-string">'links.reddit_campaign'</span>,
interpolate: <span class="hljs-literal">true</span>,
label: <span class="hljs-string">'Reddit link'</span>,
representedAs: <span class="hljs-function"><span class="hljs-params">row</span> =></span> <span class="hljs-string">`<a href="<span class="hljs-subst">${ row.links.reddit_campaign }</span>"><span class="hljs-subst">${ row.mission_name }</span> Reddit thread</a>`</span>,
sortable: <span class="hljs-literal">false</span>,
},
] <span class="hljs-keyword">as</span> TColumnsDefinition<ISpaceXLaunch>,
page: <span class="hljs-number">1</span>,
<span class="hljs-keyword">async</span> getData( { sortBy, sortDir, perPage, page }: IDataFnParams<ISpaceXLaunch> ) {
<span class="hljs-keyword">const</span> sortParams = sortBy && sortDir ? {
order: sortDir,
sort: colFieldToStr( sortBy ).replace( <span class="hljs-regexp">/\./g</span>, <span class="hljs-string">'/'</span> ),
} : {};
<span class="hljs-keyword">const</span> params = {
<span class="hljs-comment">// Sorting</span>
...sortParams,
<span class="hljs-comment">// Filtering</span>
<span class="hljs-comment">// See https://documenter.getpostman.com/view/2025350/RWaEzAiG#json-field-masking</span>
filter: <span class="hljs-keyword">this</span>.columns.map( <span class="hljs-function"><span class="hljs-params">col</span> =></span> colFieldToStr( col.field! ).replace( <span class="hljs-regexp">/\./g</span>, <span class="hljs-string">'/'</span> ) ).join( <span class="hljs-string">','</span> ),
<span class="hljs-comment">// Paging</span>
limit: perPage || <span class="hljs-number">10</span>,
offset: ( ( page - <span class="hljs-number">1</span> ) * perPage ) || <span class="hljs-number">0</span>,
};
<span class="hljs-keyword">const</span> url = <span class="hljs-string">`<span class="hljs-subst">${ API_URL }</span>?<span class="hljs-subst">${ makeQueryStringFromObj( params ) }</span>`</span>;
<span class="hljs-keyword">const</span> {
<span class="hljs-comment">// Data to display</span>
data,
<span class="hljs-comment">// Get the total number of matched items</span>
headers: { <span class="hljs-string">'spacex-api-count'</span>: totalCount },
} = <span class="hljs-keyword">await</span> axios.get( url );
<span class="hljs-keyword">return</span> {
rows: data,
totalRowCount: totalCount,
} <span class="hljs-keyword">as</span> ITableContentParam<ISpaceXLaunch>;
},
},
} );
</code></pre>
<a href="#html" id="html" style="color: inherit; text-decoration: none;">
<h3>HTML</h3>
</a>
<pre><code class="language-html"><span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"demo-app"</span>></span>
<span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"row"</span>></span>
<span class="hljs-tag"><<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"col-xs-12 table-responsive"</span>></span>
<span class="hljs-tag"><<span class="hljs-name">datatable</span> <span class="hljs-attr">:columns</span>=<span class="hljs-string">"columns"</span> <span class="hljs-attr">:data</span>=<span class="hljs-string">"getData"</span>></span><span class="hljs-tag"></<span class="hljs-name">datatable</span>></span>
<span class="hljs-tag"><<span class="hljs-name">datatable-pager</span> <span class="hljs-attr">v-model</span>=<span class="hljs-string">"page"</span>></span><span class="hljs-tag"></<span class="hljs-name">datatable-pager</span>></span>
<span class="hljs-tag"></<span class="hljs-name">div</span>></span>
<span class="hljs-tag"></<span class="hljs-name">div</span>></span>
<span class="hljs-tag"></<span class="hljs-name">div</span>></span></code></pre>
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