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Helper</a></li> </ul> </li> </ul> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> <i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="../index.html">CodeIgniter</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="breadcrumbs navigation"> <ul class="wy-breadcrumbs"> <li><a href="../index.html">Docs</a> »</li> <li><a href="index.html">Libraries</a> »</li> <li>Shopping Cart Class</li> <li class="wy-breadcrumbs-aside"> </li> <div style="float:right;margin-left:5px;" id="closeMe"> <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" /> </div> </ul> <hr/> </div> <div role="main" class="document"> <div class="section" id="shopping-cart-class"> <h1>Shopping Cart Class<a class="headerlink" href="#shopping-cart-class" title="Permalink to this headline">¶</a></h1> <p>The Cart Class permits items to be added to a session that stays active while a user is browsing your site. These items can be retrieved and displayed in a standard “shopping cart” format, allowing the user to update the quantity or remove items from the cart.</p> <div class="admonition important"> <p class="first admonition-title">Important</p> <p class="last">The Cart library is DEPRECATED and should not be used. It is currently only kept for backwards compatibility.</p> </div> <p>Please note that the Cart Class ONLY provides the core “cart” functionality. It does not provide shipping, credit card authorization, or other processing components.</p> <div class="contents local topic" id="contents"> <ul class="simple"> <li><a class="reference internal" href="#using-the-cart-class" id="id1">Using the Cart Class</a><ul> <li><a class="reference internal" href="#initializing-the-shopping-cart-class" id="id2">Initializing the Shopping Cart Class</a></li> <li><a class="reference internal" href="#adding-an-item-to-the-cart" id="id3">Adding an Item to The Cart</a></li> <li><a class="reference internal" href="#adding-multiple-items-to-the-cart" id="id4">Adding Multiple Items to The Cart</a></li> <li><a class="reference internal" href="#displaying-the-cart" id="id5">Displaying the Cart</a></li> <li><a class="reference internal" href="#updating-the-cart" id="id6">Updating The Cart</a><ul> <li><a class="reference internal" href="#what-is-a-row-id" id="id7">What is a Row ID?</a></li> </ul> </li> </ul> </li> <li><a class="reference internal" href="#class-reference" id="id8">Class Reference</a></li> </ul> </div> <div class="custom-index container"></div><div class="section" id="using-the-cart-class"> <h2><a class="toc-backref" href="#id1">Using the Cart Class</a><a class="headerlink" href="#using-the-cart-class" title="Permalink to this headline">¶</a></h2> <div class="section" id="initializing-the-shopping-cart-class"> <h3><a class="toc-backref" href="#id2">Initializing the Shopping Cart Class</a><a class="headerlink" href="#initializing-the-shopping-cart-class" title="Permalink to this headline">¶</a></h3> <div class="admonition important"> <p class="first admonition-title">Important</p> <p class="last">The Cart class utilizes CodeIgniter’s <a class="reference internal" href="sessions.html"><span class="doc">Session Class</span></a> to save the cart information to a database, so before using the Cart class you must set up a database table as indicated in the <a class="reference internal" href="sessions.html"><span class="doc">Session Documentation</span></a>, and set the session preferences in your application/config/config.php file to utilize a database.</p> </div> <p>To initialize the Shopping Cart Class in your controller constructor, use the <code class="docutils literal"><span class="pre">$this->load->library()</span></code> method:</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'cart'</span><span class="p">);</span> </pre></div> </div> <p>Once loaded, the Cart object will be available using:</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span> </pre></div> </div> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">The Cart Class will load and initialize the Session Class automatically, so unless you are using sessions elsewhere in your application, you do not need to load the Session class.</p> </div> </div> <div class="section" id="adding-an-item-to-the-cart"> <h3><a class="toc-backref" href="#id3">Adding an Item to The Cart</a><a class="headerlink" href="#adding-an-item-to-the-cart" title="Permalink to this headline">¶</a></h3> <p>To add an item to the shopping cart, simply pass an array with the product information to the <code class="docutils literal"><span class="pre">$this->cart->insert()</span></code> method, as shown below:</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span> <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span> <span class="s1">'options'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Size'</span> <span class="o">=></span> <span class="s1">'L'</span><span class="p">,</span> <span class="s1">'Color'</span> <span class="o">=></span> <span class="s1">'Red'</span><span class="p">)</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> </pre></div> </div> <div class="admonition important"> <p class="first admonition-title">Important</p> <p class="last">The first four array indexes above (id, qty, price, and name) are <strong>required</strong>. If you omit any of them the data will not be saved to the cart. The fifth index (options) is optional. It is intended to be used in cases where your product has options associated with it. Use an array for options, as shown above.</p> </div> <p>The five reserved indexes are:</p> <ul class="simple"> <li><strong>id</strong> - Each product in your store must have a unique identifier. Typically this will be an “sku” or other such identifier.</li> <li><strong>qty</strong> - The quantity being purchased.</li> <li><strong>price</strong> - The price of the item.</li> <li><strong>name</strong> - The name of the item.</li> <li><strong>options</strong> - Any additional attributes that are needed to identify the product. These must be passed via an array.</li> </ul> <p>In addition to the five indexes above, there are two reserved words: rowid and subtotal. These are used internally by the Cart class, so please do NOT use those words as index names when inserting data into the cart.</p> <p>Your array may contain additional data. Anything you include in your array will be stored in the session. However, it is best to standardize your data among all your products in order to make displaying the information in a table easier.</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span> <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span> <span class="s1">'coupon'</span> <span class="o">=></span> <span class="s1">'XMAS-50OFF'</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> </pre></div> </div> <p>The <code class="docutils literal"><span class="pre">insert()</span></code> method will return the $rowid if you successfully insert a single item.</p> </div> <div class="section" id="adding-multiple-items-to-the-cart"> <h3><a class="toc-backref" href="#id4">Adding Multiple Items to The Cart</a><a class="headerlink" href="#adding-multiple-items-to-the-cart" title="Permalink to this headline">¶</a></h3> <p>By using a multi-dimensional array, as shown below, it is possible to add multiple products to the cart in one action. This is useful in cases where you wish to allow people to select from among several items on the same page.</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span> <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span> <span class="s1">'options'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Size'</span> <span class="o">=></span> <span class="s1">'L'</span><span class="p">,</span> <span class="s1">'Color'</span> <span class="o">=></span> <span class="s1">'Red'</span><span class="p">)</span> <span class="p">),</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_567ZYX'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">9.95</span><span class="p">,</span> <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'Coffee Mug'</span> <span class="p">),</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_965QRS'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">29.95</span><span class="p">,</span> <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'Shot Glass'</span> <span class="p">)</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> </pre></div> </div> </div> <div class="section" id="displaying-the-cart"> <h3><a class="toc-backref" href="#id5">Displaying the Cart</a><a class="headerlink" href="#displaying-the-cart" title="Permalink to this headline">¶</a></h3> <p>To display the cart you will create a <a class="reference internal" href="../general/views.html"><span class="doc">view file</span></a> with code similar to the one shown below.</p> <p>Please note that this example uses the <a class="reference internal" href="../helpers/form_helper.html"><span class="doc">form helper</span></a>.</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">form_open</span><span class="p">(</span><span class="s1">'path/to/controller/update/method'</span><span class="p">);</span> <span class="cp">?></span> <span class="p"><</span><span class="nt">table</span> <span class="na">cellpadding</span><span class="o">=</span><span class="s">"6"</span> <span class="na">cellspacing</span><span class="o">=</span><span class="s">"1"</span> <span class="na">style</span><span class="o">=</span><span class="s">"width:100%"</span> <span class="na">border</span><span class="o">=</span><span class="s">"0"</span><span class="p">></span> <span class="p"><</span><span class="nt">tr</span><span class="p">></span> <span class="p"><</span><span class="nt">th</span><span class="p">></span>QTY<span class="p"></</span><span class="nt">th</span><span class="p">></span> <span class="p"><</span><span class="nt">th</span><span class="p">></span>Item Description<span class="p"></</span><span class="nt">th</span><span class="p">></span> <span class="p"><</span><span class="nt">th</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>Item Price<span class="p"></</span><span class="nt">th</span><span class="p">></span> <span class="p"><</span><span class="nt">th</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>Sub-Total<span class="p"></</span><span class="nt">th</span><span class="p">></span> <span class="p"></</span><span class="nt">tr</span><span class="p">></span> <span class="cp"><?php</span> <span class="nv">$i</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="cp">?></span> <span class="cp"><?php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">contents</span><span class="p">()</span> <span class="k">as</span> <span class="nv">$items</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span> <span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_hidden</span><span class="p">(</span><span class="nv">$i</span><span class="o">.</span><span class="s1">'[rowid]'</span><span class="p">,</span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">]);</span> <span class="cp">?></span> <span class="p"><</span><span class="nt">tr</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_input</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'name'</span> <span class="o">=></span> <span class="nv">$i</span><span class="o">.</span><span class="s1">'[qty]'</span><span class="p">,</span> <span class="s1">'value'</span> <span class="o">=></span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'qty'</span><span class="p">],</span> <span class="s1">'maxlength'</span> <span class="o">=></span> <span class="s1">'3'</span><span class="p">,</span> <span class="s1">'size'</span> <span class="o">=></span> <span class="s1">'5'</span><span class="p">));</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span><span class="p">></span> <span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'name'</span><span class="p">];</span> <span class="cp">?></span> <span class="cp"><?php</span> <span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">has_options</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">])</span> <span class="o">==</span> <span class="k">TRUE</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span> <span class="p"><</span><span class="nt">p</span><span class="p">></span> <span class="cp"><?php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">product_options</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">])</span> <span class="k">as</span> <span class="nv">$option_name</span> <span class="o">=></span> <span class="nv">$option_value</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span> <span class="p"><</span><span class="nt">strong</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$option_name</span><span class="p">;</span> <span class="cp">?></span>:<span class="p"></</span><span class="nt">strong</span><span class="p">></span> <span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$option_value</span><span class="p">;</span> <span class="cp">?></span><span class="p"><</span><span class="nt">br</span> <span class="p">/></span> <span class="cp"><?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?></span> <span class="p"></</span><span class="nt">p</span><span class="p">></span> <span class="cp"><?php</span> <span class="k">endif</span><span class="p">;</span> <span class="cp">?></span> <span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'price'</span><span class="p">]);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>$<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'subtotal'</span><span class="p">]);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"></</span><span class="nt">tr</span><span class="p">></span> <span class="cp"><?php</span> <span class="nv">$i</span><span class="o">++</span><span class="p">;</span> <span class="cp">?></span> <span class="cp"><?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?></span> <span class="p"><</span><span class="nt">tr</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span> <span class="na">colspan</span><span class="o">=</span><span class="s">"2"</span><span class="p">></span> <span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span> <span class="na">class</span><span class="o">=</span><span class="s">"right"</span><span class="p">><</span><span class="nt">strong</span><span class="p">></span>Total<span class="p"></</span><span class="nt">strong</span><span class="p">></</span><span class="nt">td</span><span class="p">></span> <span class="p"><</span><span class="nt">td</span> <span class="na">class</span><span class="o">=</span><span class="s">"right"</span><span class="p">></span>$<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">total</span><span class="p">());</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span> <span class="p"></</span><span class="nt">tr</span><span class="p">></span> <span class="p"></</span><span class="nt">table</span><span class="p">></span> <span class="p"><</span><span class="nt">p</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_submit</span><span class="p">(</span><span class="s1">''</span><span class="p">,</span> <span class="s1">'Update your Cart'</span><span class="p">);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">p</span><span class="p">></span> </pre></div> </div> </div> <div class="section" id="updating-the-cart"> <h3><a class="toc-backref" href="#id6">Updating The Cart</a><a class="headerlink" href="#updating-the-cart" title="Permalink to this headline">¶</a></h3> <p>To update the information in your cart, you must pass an array containing the Row ID and one or more pre-defined properties to the <code class="docutils literal"><span class="pre">$this->cart->update()</span></code> method.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">If the quantity is set to zero, the item will be removed from the cart.</p> </div> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">3</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> <span class="c1">// Or a multi-dimensional array</span> <span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">3</span> <span class="p">),</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'xw82g9q3r495893iajdh473990rikw23'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">4</span> <span class="p">),</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'fh4kdkkkaoe30njgoe92rkdkkobec333'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">2</span> <span class="p">)</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> </pre></div> </div> <p>You may also update any property you have previously defined when inserting the item such as options, price or other custom fields.</p> <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> <span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span> <span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'price'</span> <span class="o">=></span> <span class="mf">49.95</span><span class="p">,</span> <span class="s1">'coupon'</span> <span class="o">=></span> <span class="k">NULL</span> <span class="p">);</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> </pre></div> </div> <div class="section" id="what-is-a-row-id"> <h4><a class="toc-backref" href="#id7">What is a Row ID?</a><a class="headerlink" href="#what-is-a-row-id" title="Permalink to this headline">¶</a></h4> <p>The row ID is a unique identifier that is generated by the cart code when an item is added to the cart. The reason a unique ID is created is so that identical products with different options can be managed by the cart.</p> <p>For example, let’s say someone buys two identical t-shirts (same product ID), but in different sizes. The product ID (and other attributes) will be identical for both sizes because it’s the same shirt. The only difference will be the size. The cart must therefore have a means of identifying this difference so that the two sizes of shirts can be managed independently. It does so by creating a unique “row ID” based on the product ID and any options associated with it.</p> <p>In nearly all cases, updating the cart will be something the user does via the “view cart” page, so as a developer, it is unlikely that you will ever have to concern yourself with the “row ID”, other than making sure your “view cart” page contains this information in a hidden form field, and making sure it gets passed to the <code class="docutils literal"><span class="pre">update()</span></code> method when the update form is submitted. Please examine the construction of the “view cart” page above for more information.</p> </div> </div> </div> <div class="section" id="class-reference"> <h2><a class="toc-backref" href="#id8">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2> <dl class="class"> <dt id="CI_Cart"> <em class="property">class </em><code class="descname">CI_Cart</code><a class="headerlink" href="#CI_Cart" title="Permalink to this definition">¶</a></dt> <dd><dl class="attribute"> <dt> <code class="descname">$product_id_rules = '.a-z0-9_-'</code></dt> <dd><p>These are the regular expression rules that we use to validate the product ID - alpha-numeric, dashes, underscores, or periods by default</p> </dd></dl> <dl class="attribute"> <dt> <code class="descname">$product_name_rules = 'w -.:'</code></dt> <dd><p>These are the regular expression rules that we use to validate the product ID and product name - alpha-numeric, dashes, underscores, colons or periods by default</p> </dd></dl> <dl class="attribute"> <dt> <code class="descname">$product_name_safe = TRUE</code></dt> <dd><p>Whether or not to only allow safe product names. Default TRUE.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::insert"> <code class="descname">insert</code><span class="sig-paren">(</span><span class="optional">[</span><em>$items = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::insert" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$items</strong> (<em>array</em>) – Items to insert into the cart</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> </td> </tr> </tbody> </table> <p>Insert items into the cart and save it to the session table. Returns TRUE on success and FALSE on failure.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::update"> <code class="descname">update</code><span class="sig-paren">(</span><span class="optional">[</span><em>$items = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::update" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$items</strong> (<em>array</em>) – Items to update in the cart</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> </td> </tr> </tbody> </table> <p>This method permits changing the properties of a given item. Typically it is called from the “view cart” page if a user makes changes to the quantity before checkout. That array must contain the rowid for each item.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::remove"> <code class="descname">remove</code><span class="sig-paren">(</span><em>$rowid</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::remove" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$rowid</strong> (<em>int</em>) – ID of the item to remove from the cart</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> </td> </tr> </tbody> </table> <p>Allows you to remove an item from the shopping cart by passing it the <code class="docutils literal"><span class="pre">$rowid</span></code>.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::total"> <code class="descname">total</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::total" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Total amount</td> </tr> <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td> </tr> </tbody> </table> <p>Displays the total amount in the cart.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::total_items"> <code class="descname">total_items</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::total_items" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Total amount of items in the cart</td> </tr> <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td> </tr> </tbody> </table> <p>Displays the total number of items in the cart.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::contents"> <code class="descname">contents</code><span class="sig-paren">(</span><span class="optional">[</span><em>$newest_first = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::contents" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$newest_first</strong> (<em>bool</em>) – Whether to order the array with newest items first</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of cart contents</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> </td> </tr> </tbody> </table> <p>Returns an array containing everything in the cart. You can sort the order by which the array is returned by passing it TRUE where the contents will be sorted from newest to oldest, otherwise it is sorted from oldest to newest.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::get_item"> <code class="descname">get_item</code><span class="sig-paren">(</span><em>$row_id</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::get_item" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$row_id</strong> (<em>int</em>) – Row ID to retrieve</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of item data</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> </td> </tr> </tbody> </table> <p>Returns an array containing data for the item matching the specified row ID, or FALSE if no such item exists.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::has_options"> <code class="descname">has_options</code><span class="sig-paren">(</span><em>$row_id = ''</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::has_options" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$row_id</strong> (<em>int</em>) – Row ID to inspect</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if options exist, FALSE otherwise</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> </td> </tr> </tbody> </table> <p>Returns TRUE (boolean) if a particular row in the cart contains options. This method is designed to be used in a loop with <code class="docutils literal"><span class="pre">contents()</span></code>, since you must pass the rowid to this method, as shown in the Displaying the Cart example above.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::product_options"> <code class="descname">product_options</code><span class="sig-paren">(</span><span class="optional">[</span><em>$row_id = ''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::product_options" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> <li><strong>$row_id</strong> (<em>int</em>) – Row ID</li> </ul> </td> </tr> <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of product options</p> </td> </tr> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> </td> </tr> </tbody> </table> <p>Returns an array of options for a particular product. This method is designed to be used in a loop with <code class="docutils literal"><span class="pre">contents()</span></code>, since you must pass the rowid to this method, as shown in the Displaying the Cart example above.</p> </dd></dl> <dl class="method"> <dt id="CI_Cart::destroy"> <code class="descname">destroy</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Cart::destroy" title="Permalink to this definition">¶</a></dt> <dd><table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">void</td> </tr> </tbody> </table> <p>Permits you to destroy the cart. This method will likely be called when you are finished processing the customer’s order.</p> </dd></dl> </dd></dl> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="config.html" class="btn btn-neutral float-right" title="Config Class">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="calendar.html" class="btn btn-neutral" title="Calendaring Class"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 2014 - 2019, British Columbia Institute of Technology. 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