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diff --git a/user_guide_src/source/libraries/calendar.rst b/user_guide_src/source/libraries/calendar.rst new file mode 100644 index 000000000..3964db25e --- /dev/null +++ b/user_guide_src/source/libraries/calendar.rst @@ -0,0 +1,174 @@ +################# +Calendaring Class +################# + +The Calendar class enables you to dynamically create calendars. Your +calendars can be formatted through the use of a calendar template, +allowing 100% control over every aspect of its design. In addition, you +can pass data to your calendar cells. + +Initializing the Class +====================== + +Like most other classes in CodeIgniter, the Calendar class is +initialized in your controller using the $this->load->library function:: + + $this->load->library('calendar'); + +Once loaded, the Calendar object will be available using:: + + $this->calendar + +Displaying a Calendar +===================== + +Here is a very simple example showing how you can display a calendar:: + + $this->load->library('calendar'); + echo $this->calendar->generate(); + +The above code will generate a calendar for the current month/year based +on your server time. To show a calendar for a specific month and year +you will pass this information to the calendar generating function:: + + $this->load->library('calendar'); + echo $this->calendar->generate(2006, 6); + +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. + +Passing Data to your Calendar Cells +=================================== + +To add data to your calendar cells involves creating an associative +array in which the keys correspond to the days you wish to populate and +the array value contains the data. The array is passed to the third +parameter of the calendar generating function. Consider this example:: + + $this->load->library('calendar'); + + $data = array( + 3 => 'http://example.com/news/article/2006/03/', + 7 => 'http://example.com/news/article/2006/07/', + 13 => 'http://example.com/news/article/2006/13/', + 26 => 'http://example.com/news/article/2006/26/' + ); + + echo $this->calendar->generate(2006, 6, $data); + +Using the above example, day numbers 3, 7, 13, and 26 will become links +pointing to the URLs you've provided. + +.. note:: By default it is assumed that your array will contain links. + In the section that explains the calendar template below you'll see how + you can customize how data passed to your cells is handled so you can + pass different types of information. + +Setting Display Preferences +=========================== + +There are seven preferences you can set to control various aspects of +the calendar. Preferences are set by passing an array of preferences in +the second parameter of the loading function. Here is an example:: + + $prefs = array ( + 'start_day' => 'saturday', + 'month_type' => 'long', + 'day_type' => 'short' + ); + + $this->load->library('calendar', $prefs); + + echo $this->calendar->generate(); + +The above code would start the calendar on saturday, use the "long" +month heading, and the "short" day names. More information regarding +preferences below. + +====================== =========== =============================================== =================================================================== +Preference Default Options Description +====================== =========== =============================================== =================================================================== +**template** None None A string containing your calendar template. + See the template section below. +**local_time** time() None A Unix timestamp corresponding to the current time. +**start_day** sunday Any week day (sunday, monday, tuesday, etc.) Sets the day of the week the calendar should start on. +**month_type** long long, short Determines what version of the month name to use in the header. + long = January, short = Jan. +**day_type** abr long, short, abr Determines what version of the weekday names to use in + the column headers. long = Sunday, short = Sun, abr = Su. +**show_next_prev** FALSE TRUE/FALSE (boolean) Determines whether to display links allowing you to toggle + to next/previous months. See information on this feature below. +**next_prev_url** None A URL Sets the basepath used in the next/previous calendar links. +====================== =========== =============================================== =================================================================== + + +Showing Next/Previous Month Links +================================= + +To allow your calendar to dynamically increment/decrement via the +next/previous links requires that you set up your calendar code similar +to this example:: + + $prefs = array ( + 'show_next_prev' => TRUE, + 'next_prev_url' => 'http://example.com/index.php/calendar/show/' + ); + + $this->load->library('calendar', $prefs); + + echo $this->calendar->generate($this->uri->segment(3), $this->uri->segment(4)); + +You'll notice a few things about the above example: + +- You must set the "show_next_prev" to TRUE. +- You must supply the URL to the controller containing your calendar in + the "next_prev_url" preference. +- 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.). + +Creating a Calendar Template +============================ + +By creating a calendar template you have 100% control over the design of +your calendar. Each component of your calendar will be placed within a +pair of pseudo-variables as shown here:: + + $prefs['template'] = ' + + {table_open}<table border="0" cellpadding="0" cellspacing="0">{/table_open} + + {heading_row_start}<tr>{/heading_row_start} + + {heading_previous_cell}<th><a href="{previous_url}"><<</a></th>{/heading_previous_cell} + {heading_title_cell}<th colspan="{colspan}">{heading}</th>{/heading_title_cell} + {heading_next_cell}<th><a href="{next_url}">>></a></th>{/heading_next_cell} + + {heading_row_end}</tr>{/heading_row_end} + + {week_row_start}<tr>{/week_row_start} + {week_day_cell}<td>{week_day}</td>{/week_day_cell} + {week_row_end}</tr>{/week_row_end} + + {cal_row_start}<tr>{/cal_row_start} + {cal_cell_start}<td>{/cal_cell_start} + + {cal_cell_content}<a href="{content}">{day}</a>{/cal_cell_content} + {cal_cell_content_today}<div class="highlight"><a href="{content}">{day}</a></div>{/cal_cell_content_today} + + {cal_cell_no_content}{day}{/cal_cell_no_content} + {cal_cell_no_content_today}<div class="highlight">{day}</div>{/cal_cell_no_content_today} + + {cal_cell_blank} {/cal_cell_blank} + + {cal_cell_end}</td>{/cal_cell_end} + {cal_row_end}</tr>{/cal_row_end} + + {table_close}</table>{/table_close} + '; + + $this->load->library('calendar', $prefs); + + echo $this->calendar->generate();
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