FriendsOfPear /
Calendar
| Total Complexity | 46 |
| Total Lines | 450 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Calendar_Engine_PearDate often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Calendar_Engine_PearDate, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 57 | class Calendar_Engine_PearDate /* implements Calendar_Engine_Interface */ |
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| 58 | { |
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| 59 | /** |
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| 60 | * Makes sure a given timestamp is only ever parsed once |
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| 61 | * Uses a static variable to prevent date() being used twice |
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| 62 | * for a date which is already known |
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| 63 | * |
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| 64 | * @param mixed $stamp Any timestamp format recognized by Pear::Date |
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| 65 | * |
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| 66 | * @return object Pear::Date object |
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| 67 | * @access protected |
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| 68 | */ |
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| 69 | function stampCollection($stamp) |
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| 70 | { |
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| 71 | static $stamps = array(); |
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| 72 | if (!isset($stamps[$stamp])) { |
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| 73 | $stamps[$stamp] = new Date($stamp); |
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| 74 | } |
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| 75 | return $stamps[$stamp]; |
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| 76 | } |
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| 77 | |||
| 78 | /** |
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| 79 | * Returns a numeric year given a iso-8601 datetime |
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| 80 | * |
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| 81 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 82 | * |
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| 83 | * @return int year (e.g. 2003) |
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| 84 | * @access protected |
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| 85 | */ |
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| 86 | function stampToYear($stamp) |
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| 87 | { |
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| 88 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 89 | return (int)$date->year; |
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| 90 | } |
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| 91 | |||
| 92 | /** |
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| 93 | * Returns a numeric month given a iso-8601 datetime |
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| 94 | * |
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| 95 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 96 | * |
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| 97 | * @return int month (e.g. 9) |
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| 98 | * @access protected |
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| 99 | */ |
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| 100 | function stampToMonth($stamp) |
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| 101 | { |
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| 102 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 103 | return (int)$date->month; |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * Returns a numeric day given a iso-8601 datetime |
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| 108 | * |
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| 109 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 110 | * |
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| 111 | * @return int day (e.g. 15) |
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| 112 | * @access protected |
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| 113 | */ |
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| 114 | function stampToDay($stamp) |
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| 115 | { |
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| 116 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 117 | return (int)$date->day; |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * Returns a numeric hour given a iso-8601 datetime |
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| 122 | * |
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| 123 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 124 | * |
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| 125 | * @return int hour (e.g. 13) |
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| 126 | * @access protected |
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| 127 | */ |
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| 128 | function stampToHour($stamp) |
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| 129 | { |
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| 130 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 131 | return (int)$date->hour; |
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| 132 | } |
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| 133 | |||
| 134 | /** |
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| 135 | * Returns a numeric minute given a iso-8601 datetime |
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| 136 | * |
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| 137 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 138 | * |
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| 139 | * @return int minute (e.g. 34) |
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| 140 | * @access protected |
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| 141 | */ |
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| 142 | function stampToMinute($stamp) |
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| 143 | { |
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| 144 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 145 | return (int)$date->minute; |
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| 146 | } |
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| 147 | |||
| 148 | /** |
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| 149 | * Returns a numeric second given a iso-8601 datetime |
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| 150 | * |
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| 151 | * @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS) |
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| 152 | * |
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| 153 | * @return int second (e.g. 51) |
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| 154 | * @access protected |
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| 155 | */ |
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| 156 | function stampToSecond($stamp) |
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| 157 | { |
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| 158 | $date = Calendar_Engine_PearDate::stampCollection($stamp); |
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| 159 | return (int)$date->second; |
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| 160 | } |
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| 161 | |||
| 162 | /** |
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| 163 | * Returns a iso-8601 datetime |
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| 164 | * |
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| 165 | * @param int $y year (2003) |
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| 166 | * @param int $m month (9) |
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| 167 | * @param int $d day (13) |
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| 168 | * @param int $h hour (13) |
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| 169 | * @param int $i minute (34) |
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| 170 | * @param int $s second (53) |
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| 171 | * |
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| 172 | * @return string iso-8601 datetime |
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| 173 | * @access protected |
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| 174 | */ |
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| 175 | function dateToStamp($y, $m, $d, $h=0, $i=0, $s=0) |
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| 176 | { |
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| 177 | $r = array(); |
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| 178 | Calendar_Engine_PearDate::adjustDate($y, $m, $d, $h, $i, $s); |
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| 179 | $key = $y.$m.$d.$h.$i.$s; |
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| 180 | if (!isset($r[$key])) { |
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| 181 | $r[$key] = sprintf("%04d-%02d-%02d %02d:%02d:%02d", |
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| 182 | $y, $m, $d, $h, $i, $s); |
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| 183 | } |
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| 184 | return $r[$key]; |
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| 185 | } |
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| 186 | |||
| 187 | /** |
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| 188 | * Set the correct date values (useful for math operations on dates) |
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| 189 | * |
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| 190 | * @param int &$y year (2003) |
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| 191 | * @param int &$m month (9) |
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| 192 | * @param int &$d day (13) |
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| 193 | * @param int &$h hour (13) |
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| 194 | * @param int &$i minute (34) |
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| 195 | * @param int &$s second (53) |
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| 196 | * |
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| 197 | * @return void |
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| 198 | * @access protected |
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| 199 | */ |
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| 200 | function adjustDate(&$y, &$m, &$d, &$h, &$i, &$s) |
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| 201 | { |
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| 202 | if ($s < 0) { |
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| 203 | $m -= floor($s / 60); |
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| 204 | $s = -$s % 60; |
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| 205 | } |
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| 206 | if ($s > 60) { |
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| 207 | $m += floor($s / 60); |
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| 208 | $s %= 60; |
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| 209 | } |
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| 210 | if ($i < 0) { |
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| 211 | $h -= floor($i / 60); |
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| 212 | $i = -$i % 60; |
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| 213 | } |
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| 214 | if ($i > 60) { |
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| 215 | $h += floor($i / 60); |
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| 216 | $i %= 60; |
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| 217 | } |
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| 218 | if ($h < 0) { |
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| 219 | $d -= floor($h / 24); |
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| 220 | $h = -$h % 24; |
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| 221 | } |
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| 222 | if ($h > 24) { |
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| 223 | $d += floor($h / 24); |
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| 224 | $h %= 24; |
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| 225 | } |
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| 226 | for(; $m < 1; $y--, $m+=12); |
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| 227 | for(; $m > 12; $y++, $m-=12); |
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| 228 | |||
| 229 | while ($d < 1) { |
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| 230 | if ($m > 1) { |
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| 231 | $m--; |
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| 232 | } else { |
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| 233 | $m = 12; |
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| 234 | $y--; |
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| 235 | } |
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| 236 | $d += Date_Calc::daysInMonth($m, $y); |
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| 237 | } |
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| 238 | for ($max_days = Date_Calc::daysInMonth($m, $y); $d > $max_days; ) { |
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| 239 | $d -= $max_days; |
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| 240 | if ($m < 12) { |
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| 241 | $m++; |
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| 242 | } else { |
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| 243 | $m = 1; |
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| 244 | $y++; |
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| 245 | } |
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| 246 | } |
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| 247 | } |
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| 248 | |||
| 249 | /** |
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| 250 | * The upper limit on years that the Calendar Engine can work with |
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| 251 | * |
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| 252 | * @return int 9999 |
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| 253 | * @access protected |
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| 254 | */ |
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| 255 | function getMaxYears() |
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| 256 | { |
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| 257 | return 9999; |
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| 258 | } |
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| 259 | |||
| 260 | /** |
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| 261 | * The lower limit on years that the Calendar Engine can work with |
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| 262 | * |
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| 263 | * @return int 0 |
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| 264 | * @access protected |
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| 265 | */ |
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| 266 | function getMinYears() |
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| 267 | { |
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| 268 | return 0; |
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| 269 | } |
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| 270 | |||
| 271 | /** |
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| 272 | * Returns the number of months in a year |
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| 273 | * |
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| 274 | * @param int $y year |
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| 275 | * |
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| 276 | * @return int (12) |
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| 277 | * @access protected |
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| 278 | */ |
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| 279 | function getMonthsInYear($y=null) |
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| 280 | { |
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| 281 | return 12; |
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| 282 | } |
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| 283 | |||
| 284 | /** |
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| 285 | * Returns the number of days in a month, given year and month |
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| 286 | * |
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| 287 | * @param int $y year (2003) |
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| 288 | * @param int $m month (9) |
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| 289 | * |
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| 290 | * @return int days in month |
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| 291 | * @access protected |
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| 292 | */ |
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| 293 | function getDaysInMonth($y, $m) |
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| 294 | { |
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| 295 | return (int)Date_Calc::daysInMonth($m, $y); |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Returns numeric representation of the day of the week in a month, |
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| 300 | * given year and month |
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| 301 | * |
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| 302 | * @param int $y year (2003) |
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| 303 | * @param int $m month (9) |
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| 304 | * |
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| 305 | * @return int from 0 to 7 |
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| 306 | * @access protected |
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| 307 | */ |
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| 308 | function getFirstDayInMonth($y, $m) |
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| 309 | { |
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| 310 | return (int)Date_Calc::dayOfWeek(1, $m, $y); |
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| 311 | } |
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| 312 | |||
| 313 | /** |
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| 314 | * Returns the number of days in a week |
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| 315 | * |
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| 316 | * @param int $y year (2003) |
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| 317 | * @param int $m month (9) |
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| 318 | * @param int $d day (4) |
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| 319 | * |
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| 320 | * @return int (7) |
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| 321 | * @access protected |
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| 322 | */ |
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| 323 | function getDaysInWeek($y=null, $m=null, $d=null) |
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| 326 | } |
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| 327 | |||
| 328 | /** |
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| 329 | * Returns the number of the week in the year (ISO-8601), given a date |
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| 330 | * |
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| 331 | * @param int $y year (2003) |
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| 332 | * @param int $m month (9) |
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| 333 | * @param int $d day (4) |
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| 334 | * |
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| 335 | * @return int week number |
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| 336 | * @access protected |
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| 337 | */ |
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| 338 | function getWeekNInYear($y, $m, $d) |
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| 339 | { |
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| 340 | //return Date_Calc::weekOfYear($d, $m, $y); //beware, Date_Calc doesn't follow ISO-8601 standard! |
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| 341 | list($nYear, $nWeek) = Date_Calc::weekOfYear4th($d, $m, $y); |
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| 342 | return $nWeek; |
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| 343 | } |
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| 344 | |||
| 345 | /** |
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| 346 | * Returns the number of the week in the month, given a date |
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| 347 | * |
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| 348 | * @param int $y year (2003) |
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| 349 | * @param int $m month (9) |
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| 350 | * @param int $d day (4) |
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| 351 | * @param int $firstDay first day of the week (default: monday) |
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| 352 | * |
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| 353 | * @return int week number |
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| 354 | * @access protected |
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| 355 | */ |
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| 356 | function getWeekNInMonth($y, $m, $d, $firstDay=1) |
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| 357 | { |
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| 358 | $weekEnd = ($firstDay == 0) ? $this->getDaysInWeek()-1 : $firstDay-1; |
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| 359 | $end_of_week = (int)Date_Calc::nextDayOfWeek($weekEnd, 1, $m, $y, '%e', true); |
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| 360 | $w = 1; |
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| 361 | while ($d > $end_of_week) { |
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| 362 | ++$w; |
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| 363 | $end_of_week += $this->getDaysInWeek(); |
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| 364 | } |
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| 365 | return $w; |
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| 366 | } |
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| 367 | |||
| 368 | /** |
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| 369 | * Returns the number of weeks in the month |
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| 370 | * |
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| 371 | * @param int $y year (2003) |
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| 372 | * @param int $m month (9) |
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| 373 | * @param int $firstDay first day of the week (default: monday) |
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| 374 | * |
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| 375 | * @return int weeks number |
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| 376 | * @access protected |
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| 377 | */ |
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| 378 | function getWeeksInMonth($y, $m, $firstDay=1) |
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| 379 | { |
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| 380 | $FDOM = Date_Calc::firstOfMonthWeekday($m, $y); |
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| 381 | if ($FDOM == 0) { |
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| 382 | $FDOM = $this->getDaysInWeek(); |
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| 383 | } |
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| 384 | if ($FDOM > $firstDay) { |
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| 385 | $daysInTheFirstWeek = $this->getDaysInWeek() - $FDOM + $firstDay; |
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| 386 | $weeks = 1; |
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| 387 | } else { |
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| 388 | $daysInTheFirstWeek = $firstDay - $FDOM; |
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| 389 | $weeks = 0; |
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| 390 | } |
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| 391 | $daysInTheFirstWeek %= $this->getDaysInWeek(); |
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| 392 | return (int)(ceil(($this->getDaysInMonth($y, $m) - $daysInTheFirstWeek) / |
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| 393 | $this->getDaysInWeek()) + $weeks); |
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| 394 | } |
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| 395 | |||
| 396 | /** |
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| 397 | * Returns the number of the day of the week (0=sunday, 1=monday...) |
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| 398 | * |
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| 399 | * @param int $y year (2003) |
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| 400 | * @param int $m month (9) |
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| 401 | * @param int $d day (4) |
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| 402 | * |
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| 403 | * @return int weekday number |
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| 404 | * @access protected |
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| 405 | */ |
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| 406 | function getDayOfWeek($y, $m, $d) |
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| 407 | { |
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| 408 | return Date_Calc::dayOfWeek($d, $m, $y); |
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| 409 | } |
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| 410 | |||
| 411 | /** |
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| 412 | * Returns a list of integer days of the week beginning 0 |
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| 413 | * |
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| 414 | * @param int $y year (2003) |
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| 415 | * @param int $m month (9) |
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| 416 | * @param int $d day (4) |
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| 417 | * |
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| 418 | * @return array (0, 1, 2, 3, 4, 5, 6) 1 = Monday |
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| 419 | * @access protected |
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| 420 | */ |
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| 421 | function getWeekDays($y=null, $m=null, $d=null) |
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| 422 | { |
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| 423 | return array(0, 1, 2, 3, 4, 5, 6); |
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| 424 | } |
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| 425 | |||
| 426 | /** |
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| 427 | * Returns the default first day of the week |
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| 428 | * |
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| 429 | * @param int $y year (2003) |
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| 430 | * @param int $m month (9) |
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| 431 | * @param int $d day (4) |
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| 432 | * |
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| 433 | * @return int (default 1 = Monday) |
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| 434 | * @access protected |
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| 435 | */ |
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| 436 | function getFirstDayOfWeek($y=null, $m=null, $d=null) |
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| 437 | { |
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| 438 | return 1; |
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| 439 | } |
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| 440 | |||
| 441 | /** |
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| 442 | * Returns the number of hours in a day |
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| 443 | * |
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| 444 | * @param int $y year (2003) |
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| 445 | * @param int $m month (9) |
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| 446 | * @param int $d day (4) |
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| 447 | * |
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| 448 | * @return int (24) |
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| 449 | * @access protected |
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| 450 | */ |
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| 451 | function getHoursInDay($y=null,$m=null,$d=null) |
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| 452 | { |
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| 453 | return 24; |
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| 454 | } |
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| 455 | |||
| 456 | /** |
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| 457 | * Returns the number of minutes in an hour |
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| 458 | * |
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| 459 | * @param int $y year (2003) |
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| 460 | * @param int $m month (9) |
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| 461 | * @param int $d day (4) |
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| 462 | * @param int $h hour |
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| 463 | * |
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| 464 | * @return int (60) |
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| 465 | * @access protected |
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| 466 | */ |
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| 467 | function getMinutesInHour($y=null,$m=null,$d=null,$h=null) |
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| 468 | { |
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| 469 | return 60; |
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| 470 | } |
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| 471 | |||
| 472 | /** |
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| 473 | * Returns the number of seconds in a minutes |
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| 474 | * |
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| 475 | * @param int $y year (2003) |
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| 476 | * @param int $m month (9) |
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| 477 | * @param int $d day (4) |
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| 478 | * @param int $h hour |
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| 479 | * @param int $i minute |
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| 480 | * |
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| 481 | * @return int (60) |
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| 482 | * @access protected |
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| 483 | */ |
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| 484 | function getSecondsInMinute($y=null,$m=null,$d=null,$h=null,$i=null) |
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| 485 | { |
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| 486 | return 60; |
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| 487 | } |
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| 488 | |||
| 489 | /** |
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| 490 | * Checks if the given day is the current day |
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| 491 | * |
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| 492 | * @param mixed $stamp Any timestamp format recognized by Pear::Date |
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| 493 | * |
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| 494 | * @return boolean |
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| 495 | * @access protected |
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| 496 | */ |
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| 497 | function isToday($stamp) |
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| 507 | ); |
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| 508 | } |
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| 509 | } |
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| 510 |
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.