| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Helix\DB\SQL; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * Produces datetime related expressions for the instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * Each DBMS has its own quirks with dates, which is beyond the scope of this library. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * @see https://sqlite.org/lang_datefunc.html | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * @see https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | trait DateTimeTrait { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     use AbstractTrait; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      * `YYYY-MM-DD` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      * @return Text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     public function date () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |         return Text::factory($this->db, $this->dateFormat('%Y-%m-%d')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * Date formatting expression using a driver-appropriate function. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @param string|string[] $format Format, or formats keyed by driver name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * @return Text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     public function dateFormat ($format) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         if (is_array($format)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |             $format = $format[$this->db->getDriver()]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         $format = $this->db->quote($format); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         if ($this->db->isSQLite()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |             return Text::factory($this->db, "STRFTIME({$format},{$this})"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         return Text::factory($this->db, "DATE_FORMAT({$this},{$format})"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * `YYYY-MM-DD hh:mm:ss` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @return Text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     public function datetime () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         return Text::factory($this->db, $this->dateFormat([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |             'mysql' => '%Y-%m-%d %H:%i:%S', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |             'sqlite' => '%Y-%m-%d %H:%M:%S' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         ])); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * `01` to `31` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     public function day () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         return Num::factory($this->db, $this->dateFormat('%d')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * `0` to `6` (Sunday is `0`) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * @return Num | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 68 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 69 |  |  |     public function dayOfWeek () { | 
            
                                                                        
                            
            
                                    
            
            
                | 70 |  |  |         return Num::factory($this->db, $this->dateFormat('%w')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * `001` to `366` (365 + 1 during leap year) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     public function dayOfYear () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         return Num::factory($this->db, $this->dateFormat('%j')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * `00` to `23` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     public function hours () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |         return Num::factory($this->db, $this->dateFormat('%H')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * ISO-8601 compatible datetime string, offset `Z` (UTC/Zulu) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      * https://en.wikipedia.org/wiki/ISO_8601 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      * @return Text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     public function iso8601 () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         return Text::factory($this->db, $this->dateFormat([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |             'mysql' => '%Y-%m-%dT%H:%i:%SZ', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |             'sqlite' => '%Y-%m-%dT%H:%M:%SZ', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         ])); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * `00` to `59` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |     public function minutes () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         return Num::factory($this->db, $this->dateFormat([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |             'mysql' => '%i', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |             'sqlite' => '%M' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         ])); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * `01` to `12` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     public function month () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         return Num::factory($this->db, $this->dateFormat('%m')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      * `00` to `59` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     public function seconds () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         return Num::factory($this->db, $this->dateFormat('%S')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * `00:00:00` to `23:59:59` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @return Text | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     public function time () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         return Text::factory($this->db, $this->dateFormat([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |             'mysql' => '%H:%i:%S', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |             'sqlite' => '%H:%M:%S' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         ])); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * Unix timestamp. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |     public function timestamp () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         if ($this->db->isSQLite()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |             return Num::factory($this->db, "STRFTIME('%s',{$this})"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         return Num::factory($this->db, "UNIX_TIMESTAMP({$this})"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      * Changes the timezone from UTC to the local timezone. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      * - SQLite: Uses the operating system's timezone. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * - MySQL: Uses PHP's timezone. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |      * > Warning: Chaining this multiple times will further change the timezone offset. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      * @return DateTime | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     public function toLocalTz () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         if ($this->db->isSQLite()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |             // docs: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |             // > The "localtime" modifier (12) assumes the time value to its left is in | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             // > Universal Coordinated Time (UTC) and adjusts that time value so that it is in localtime. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |             // > If "localtime" follows a time that is not UTC, then the behavior is undefined. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |             return DateTime::factory($this->db, "DATETIME({$this},'localtime')"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |         $local = date_default_timezone_get(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         return DateTime::factory($this->db, "CONVERT_TZ({$this},'UTC','{$local}')"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * Changes the timezone from the local timezone to UTC. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |      * > Warning: Datetimes are already stored and retrieved as UTC. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      * > Only use this if you know the expression is in the local timezone. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |      * > Warning: Chaining this multiple times will further change the timezone offset. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |      * @return DateTime | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |     public function toUtc () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         if ($this->db->isSQLite()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |             // docs: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |             // > "utc" assumes that the time value to its left is in the local timezone | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |             // > and adjusts that time value to be in UTC. If the time to the left is not in localtime, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |             // > then the result of "utc" is undefined. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |             return DateTime::factory($this->db, "DATETIME({$this},'utc')"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         $local = date_default_timezone_get(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         return DateTime::factory($this->db, "CONVERT_TZ({$this},'{$local}','UTC')"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |      * `00` to `53` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |     public function weekOfYear () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |         return Num::factory($this->db, $this->dateFormat([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             'mysql' => '%U', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |             'sqlite' => '%W' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |         ])); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |      * `YYYY` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |      * @return Num | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     public function year () { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |         return Num::factory($this->db, $this->dateFormat('%Y')); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 222 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 223 |  |  | } |