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<td><h1>CodeIgniter User Guide Version 2.1.3</h1></td>
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<h1>Calendaring Class</h1>
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<p>The Calendar class enables you to dynamically create calendars. Your calendars can be formatted through the use of a calendar
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template, allowing 100% control over every aspect of its design. In addition, you can pass data to your calendar cells.</p>
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<h2>Initializing the Class</h2>
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<p>Like most other classes in CodeIgniter, the Calendar class is initialized in your controller using the <dfn>$this->load->library</dfn> function:</p>
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<code>$this->load->library('calendar');</code>
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<p>Once loaded, the Calendar object will be available using: <dfn>$this->calendar</dfn></p>
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<h2>Displaying a Calendar</h2>
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<p>Here is a very simple example showing how you can display a calendar:</p>
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<code>$this->load->library('calendar');<br />
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echo $this->calendar->generate();</code>
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<p>The above code will generate a calendar for the current month/year based on your server time.
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To show a calendar for a specific month and year you will pass this information to the calendar generating function:</p>
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<code>$this->load->library('calendar');<br />
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echo $this->calendar->generate(<kbd>2006</kbd>, <kbd>6</kbd>);</code>
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<p>The above code will generate a calendar showing the month of June in 2006. The first parameter specifies the year, the second parameter specifies the month.</p>
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<h2>Passing Data to your Calendar Cells</h2>
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<p>To add data to your calendar cells involves creating an associative array in which the keys correspond to the days
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you wish to populate and the array value contains the data. The array is passed to the third parameter of the calendar
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generating function. Consider this example:</p>
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<code>$this->load->library('calendar');<br />
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3 => 'http://example.com/news/article/2006/03/',<br />
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7 => 'http://example.com/news/article/2006/07/',<br />
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13 => 'http://example.com/news/article/2006/13/',<br />
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26 => 'http://example.com/news/article/2006/26/'<br />
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);<br />
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echo $this->calendar->generate(<kbd>2006</kbd>, <kbd>6</kbd>, <var>$data</var>);</code>
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<p>Using the above example, day numbers 3, 7, 13, and 26 will become links pointing to the URLs you've provided.</p>
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<p class="important"><strong>Note:</strong> By default it is assumed that your array will contain links.
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In the section that explains the calendar template below you'll see how you can customize
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how data passed to your cells is handled so you can pass different types of information.</p>
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<h2>Setting Display Preferences</h2>
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<p>There are seven preferences you can set to control various aspects of the calendar. Preferences are set by passing an
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array of preferences in the second parameter of the loading function. Here is an example:</p>
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$prefs = array (<br />
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'start_day' => 'saturday',<br />
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'month_type' => 'long',<br />
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'day_type' => 'short'<br />
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);<br />
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$this->load->library('calendar', $prefs);<br />
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echo $this->calendar->generate();</code>
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<p>The above code would start the calendar on saturday, use the "long" month heading, and the "short" day names. More information
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regarding preferences below.</p>
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<table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder">
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<th>Default Value</th>
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<td class="td"><strong>template</strong></td><td class="td">None</td><td class="td">None</td><td class="td">A string containing your calendar template. See the template section below.</td>
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<td class="td"><strong>local_time</strong></td><td class="td">time()</td><td class="td">None</td><td class="td">A Unix timestamp corresponding to the current time.</td>
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<td class="td"><strong>start_day</strong></td><td class="td">sunday</td><td class="td">Any week day (sunday, monday, tuesday, etc.)</td><td class="td">Sets the day of the week the calendar should start on.</td>
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<td class="td"><strong>month_type</strong></td><td class="td">long</td><td class="td">long, short</td><td class="td">Determines what version of the month name to use in the header. long = January, short = Jan.</td>
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<td class="td"><strong>day_type</strong></td><td class="td">abr</td><td class="td">long, short, abr</td><td class="td">Determines what version of the weekday names to use in the column headers. long = Sunday, short = Sun, abr = Su.</td>
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<td class="td"><strong>show_next_prev</strong></td><td class="td">FALSE</td><td class="td">TRUE/FALSE (boolean)</td><td class="td">Determines whether to display links allowing you to toggle to next/previous months. See information on this feature below.</td>
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<td class="td"><strong>next_prev_url</strong></td><td class="td">None</td><td class="td">A URL</td><td class="td">Sets the basepath used in the next/previous calendar links.</td>
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<h2>Showing Next/Previous Month Links</h2>
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<p>To allow your calendar to dynamically increment/decrement via the next/previous links requires that you set up your calendar
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code similar to this example:</p>
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<code>$prefs = array (<br />
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'show_next_prev' => TRUE,<br />
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'next_prev_url' => 'http://example.com/index.php/calendar/show/'<br />
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);<br />
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$this->load->library('calendar', $prefs);<br />
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echo $this->calendar->generate(<var>$this->uri->segment(3)</var>, <var>$this->uri->segment(4)</var>);</code>
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<p>You'll notice a few things about the above example:</p>
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<li>You must set the "show_next_prev" to TRUE.</li>
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<li>You must supply the URL to the controller containing your calendar in the "next_prev_url" preference.</li>
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<li>You must supply the "year" and "month" to the calendar generating function via the URI segments where they appear (Note: The calendar class automatically adds the year/month to the base URL you provide.).</li>
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<h2>Creating a Calendar Template</h2>
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<p>By creating a calendar template you have 100% control over the design of your calendar. Each component of your
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calendar will be placed within a pair of pseudo-variables as shown here:</p>
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$prefs['template'] = '<br /><br />
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<dfn>{table_open}</dfn><var><table border="0" cellpadding="0" cellspacing="0"></var><dfn>{/table_open}</dfn><br />
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<dfn>{heading_row_start}</dfn><var><tr></var><dfn>{/heading_row_start}</dfn><br />
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<dfn>{heading_previous_cell}</dfn><var><th><a href="</var><kbd>{previous_url}</kbd><var>">&lt;&lt;</a></th></var><dfn>{/heading_previous_cell}</dfn><br />
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<dfn>{heading_title_cell}</dfn><var><th colspan="</var><kbd>{colspan}</kbd><var>"></var><kbd>{heading}</kbd><var></th></var><dfn>{/heading_title_cell}</dfn><br />
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<dfn>{heading_next_cell}</dfn><var><th><a href="</var><kbd>{next_url}</kbd><var>">&gt;&gt;</a></th></var><dfn>{/heading_next_cell}</dfn><br />
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<dfn>{heading_row_end}</dfn><var></tr></var><dfn>{/heading_row_end}</dfn><br />
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<dfn>{week_row_start}</dfn><var><tr></var><dfn>{/week_row_start}</dfn><br />
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<dfn>{week_day_cell}</dfn><var><td></var><dfn>{week_day}</dfn><var></td></var><dfn>{/week_day_cell}</dfn><br />
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<dfn>{week_row_end}</dfn><var></tr></var><dfn>{/week_row_end}</dfn><br />
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<dfn>{cal_row_start}</dfn><var><tr></var><dfn>{/cal_row_start}</dfn><br />
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<dfn>{cal_cell_start}</dfn><var><td></var><dfn>{/cal_cell_start}</dfn><br />
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<dfn>{cal_cell_content}</dfn><var><a href="</var><kbd>{content}</kbd><var>"></var><kbd>{day}</kbd><var></a></var><dfn>{/cal_cell_content}</dfn><br />
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<dfn>{cal_cell_content_today}</dfn><var><div class="highlight"><a href="</var><kbd>{content}</kbd><var>"></var><kbd>{day}</kbd><var></a></div></var><dfn>{/cal_cell_content_today}</dfn><br />
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<dfn>{cal_cell_no_content}</dfn><var></var><kbd>{day}</kbd><var></var><dfn>{/cal_cell_no_content}</dfn><br />
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<dfn>{cal_cell_no_content_today}</dfn><var><div class="highlight"></var><kbd>{day}</kbd><var></div></var><dfn>{/cal_cell_no_content_today}</dfn><br />
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<dfn>{cal_cell_blank}</dfn><var>&nbsp;</var><dfn>{/cal_cell_blank}</dfn><br />
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<dfn>{cal_cell_end}</dfn><var></td></var><dfn>{/cal_cell_end}</dfn><br />
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<dfn>{cal_row_end}</dfn><var></tr></var><dfn>{/cal_row_end}</dfn><br />
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<dfn>{table_close}</dfn><var></table></var><dfn>{/table_close}</dfn><br />
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$this->load->library('calendar', $prefs);<br />
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echo $this->calendar->generate();</code>
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