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Destramic

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  1. one lastthing, i want to make user_agent_checksum a unique index, but cant as its a blob, is there away around this...or will i have to make it a text type.

     

  2. i suppose these fields, would overall determine if a cookie exists:

     

    SELECT DISTINCT(name)
    	 , value
    FROM cookies
    WHERE user_agent_checksum = '...'
    AND domain = 'http://mysite.uk'
    AND path = '/'
    AND expiry > NOW()
    ORDER BY created DESC

     

  3. 13 minutes ago, Barand said:

    You are doing it backwards.

    You need to insert but if it does exist then update instead.
     

    INSERT INTO tablename ( ... ) VALUES (...)
    ON DUPLICATE KEY UPDATE ....

    https://dev.mysql.com/doc/refman/5.7/en/insert.html

     

    thank you for your reply barand, but....

    cookie id is the only key in the table which isnt present during the insert causing there never to be a duplicate key and just inserts and not update.

    INSERT INTO cookies (name, value, path, domain, expiry, user_agent, user_agent_checksum, ip_address, ip_address_checksum)
                 VALUES ('test', 1, '/', 'test', DATE_ADD(NOW(), INTERVAL 22 SECOND), 1, 1 , 1, 1)
    ON DUPLICATE KEY
    UPDATE value = 1
    	 , expiry = DATE_ADD(NOW(), INTERVAL 22 SECOND)

     

    i could just insert a new cookie/row regardless if it cookie exists...and the cookies like so?

     

    SELECT DISTINCT(name)
    	 , value
    FROM cookies
    WHERE expiry > NOW()
    ORDER BY created DESC

     

    unless you have a better way :)

     

  4. hey guys im trying to create a cookie storage database...i want to update a cookie/row, but if the cookie doesnt exist i want to insert it a row, like so:

     

    UPDATE cookies SET value = 1
                     , expiry = DATE_ADD(NOW(), INTERVAL 22 SECOND)
    WHERE user_agent_checksum = 'fffff'
    AND name = 'test'
    AND domain = 'test'
    AND path = '/'
    AND expiry > NOW()
    AND NOT EXISTS(
    INSERT INTO cookies (name, value, path, domain, expiry, user_agent, user_agent_checksum, ip_addess, ip_address_checksum)
                 VALUES ('test', 1, '/', 'test', DATE_ADD(NOW(), INTERVAL 22 SECOND), 1, 1 , 1, 1)
    )

     

    but i get a error:

     

    Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT INTO cookies (name, value, path, domain, expiry, user_agent, user_agent_c' at line 8

     

    so my question is how do i update a cookie/row, but if it doesnt exist then to create a new one please?

     

    here is the table structure:

    CREATE TABLE `cookies` (
      `cookie_id` int(11) NOT NULL AUTO_INCREMENT,
      `name` blob NOT NULL,
      `value` blob NOT NULL,
      `path` varchar(45) NOT NULL,
      `domain` varchar(45) NOT NULL,
      `ip_address` blob NOT NULL
      `ip_address_checksum` blob NOT NULL,
      `user_agent` blob NOT NULL,
      `user_agent_checksum` blob NOT NULL,
      `expiry` timestamp NOT NULL,
      `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
      `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
      PRIMARY KEY (`cookie_id`)
    )

     

    thank you

  5. I've had numerous amounts of help from this forum for something that I have alot of passion for. Infact it was the first job I wanted to do when I grew up, but now I'm 34 haha!

    I played with Geocities when I was 13 then grasped how to write raw. But now I'm confident in many languages and feel I can put things together (not as well as you gurus).

    Anyhow, I want a career change and want to follow my kiddish dreams and work as a programmer. Start as a junior for a company, gain necessary qualifications if required and do what it is I love.

    Can you guys please give some advise for a rookie?

    Thank you 👍

     

     

     

     

     

     

  6. baramd this is beyond help, wow, thank you indeed.

    such a shame theres no exit statergy with the query, well its late now, so when im back on tomorrow i'll run you code and have a good tinker and get back to you.

    once again thank you, you didnt need to go to such efforts, but its greatly appreciated 😊

     

  7. Barand, can i please get some further advise, i've managed to get the end timestamp when the task is more than 2 days.

    But i got 2 problems, other than cleaning up the query.

    as seen in the picture, https://ibb.co/cbYN6BC

     

    1. the date 24/06/2020 is the first date to subtract the remaining minutes and i don't know why, the first date subtracting minutes should be on the 23/06/2020 (total task time 1800 mins - 540 mins = 1260)

    2. how do i end the query once i have a task end date? so it doesnt go through all the dates in the dates table?

     

    if i can figure these two problems out then i think im on my way...i'll need to add the annual leave to the task time also, which isnt a issue.

     

    set @days_work         = NULL;
    set @minutes_remaining = NULL;
    
    SELECT t.task_id
    	  , times.day_working_hours
          , times.username
          , times.task_type
          , times.date
          , times.duration_hours
          , times.task_start_timestamp
          , times.task_end_timestamp
          , times.day_name
          , times.remaining_minutes
          , times.days_work
          , times.holiday_start_timestamp
          , times.holiday_end_timestamp
          , (times.duration_hours * 60)
          FROM tasks t
    LEFT JOIN (
            SELECT date
                 , t.task_id
                 , u.username
                 , tt.task_type
                 , tt.duration_hours
                 , ot.start_timestamp as task_start_timestamp
                 , @day_working_hours := (timestampdiff(MINUTE, och.start_time, och.finish_time) - (timestampdiff(MINUTE, och.start_time, och.finish_time) DIV 270 ) * 30) / 60 as day_working_hours
                 , DAYNAME(date) as day_name
                 , oal.start_timestamp as holiday_start_timestamp
    		     , oal.end_timestamp as holiday_end_timestamp 
                 , @minutes_remaining := CASE WHEN @minutes_remaining IS NULL 
    					THEN TRUNCATE((tt.duration_hours * 60) - (@day_working_hours * 60), 0)
    					ELSE TRUNCATE(@minutes_remaining - (@day_working_hours * 60), 0)
    			   END as remaining_minutes
    			 , @days_work := CASE WHEN @days_work IS NULL AND (@day_working_hours * 60) < @minutes_remaining
                                      THEN 1
                                      WHEN @days_work IS NOT NULL AND (@day_working_hours * 60) < @minutes_remaining OR @days_work IS NOT NULL AND @minutes_remaining > 0
                                      THEN @days_work + 1
    						     END as days_work
    			 , CASE WHEN (@day_working_hours * 60) > @minutes_remaining AND @minutes_remaining > 0
    					THEN CONCAT(DATE_ADD(date(ot.start_timestamp), INTERVAL @days_work DAY), ' ', DATE_ADD(och.start_time, INTERVAL @minutes_remaining MINUTE))
                        ELSE NULL
                        END as task_end_timestamp
    		 FROM dates d
             LEFT JOIN  operative_contracted_hours och ON weekday(date) = och.week_day
    		 JOIN operatives_tasks ot USING (user_id)
    		 JOIN tasks t USING (task_id)
    		 JOIN task_types tt USING (task_type_id)
    		 JOIN users u USING (user_id)
             LEFT JOIN operatives_annual_leave oal ON oal.start_timestamp < CONCAT(date, ' ', och.finish_time)
                                                   AND oal.end_timestamp > CONCAT(date, ' ', och.start_time)
                                                   AND och.user_id = oal.user_id  
                                                   
                                                   ORDER BY date
           ) as times ON times.task_id = t.task_id
    	   

     

    hope you can help further, thank you so far

  8. i like that idea, i looked at the old code you helped me with which had the same principle 😁

     

    $db->exec("CREATE TEMPORARY TABLE date_range (
    
                  date DATE PRIMARY KEY
    
             )");
    
    $stmt = $db->prepare("INSERT INTO date_range VALUES (?)");
    
    foreach ($dp as $date) {
    
        $d = $date->format('Y-m-d');
    
        $stmt->execute([$d]);
    
    } 

     

    regarding the query  i added a dates table and inserted a number of dates ands ran the query, thank you, i increased the task duration and increased the contracted working hours on a few days while testing and saw the query would only work a maximum of two days, so i had a little play around, and came up with this

     

    set @days_work         = NULL;
    set @minutes_remaining = NULL;
    
    SELECT t.task_id
    	  , times.day_working_hours
          , times.username
          , times.task_type
          , times.date
          , times.duration_hours
          , times.task_start_timestamp
          , times.task_end_timestamp
          , times.day_name
          , times.remaining_minutes
          , times.days_work
          , times.holiday_start_timestamp
          , times.holiday_end_timestamp
          FROM tasks t
    LEFT JOIN (
            SELECT date
                 , t.task_id
                 , u.username
                 , tt.task_type
                 , tt.duration_hours
                 , ot.start_timestamp as task_start_timestamp
                 , @day_working_hours := (timestampdiff(MINUTE, och.start_time, och.finish_time) - (timestampdiff(MINUTE, och.start_time, och.finish_time) DIV 270 ) * 30) / 60 as day_working_hours
                 , DAYOFWEEK(date) as day_name
                 , oal.start_timestamp as holiday_start_timestamp
    		     , oal.end_timestamp as holiday_end_timestamp 
                 , @days_work := IF (@day_working_hours >  @minutes_remaining, IF (@days_work IS NULL, 1, @days_work + 1), NULL) as days_work
    			 , @minutes_remaining := IF (@minutes_remaining IS NULL, ((tt.duration_hours * 60) - (@day_working_hours * 60)), @minutes_remaining - (@day_working_hours * 60)) as remaining_minutes
                 , CONCAT(IF ((@day_working_hours * 60)> @minutes_remaining , DATE_ADD(date, INTERVAL @days_work DAY), ''), ' ', IF ((@day_working_hours * 60) > @minutes_remaining, DATE_ADD(och.start_time, INTERVAL @remaining_minutes MINUTE), '')) as task_end_timestamp 
    		 FROM dates d
             LEFT JOIN  operative_contracted_hours och ON weekday(date) = och.week_day
    		 JOIN operatives_tasks ot USING (user_id)
    		 JOIN tasks t USING (task_id)
    		 JOIN task_types tt USING (task_type_id)
    		 JOIN users u USING (user_id)
             LEFT JOIN operatives_annual_leave oal ON oal.start_timestamp < CONCAT(date, ' ', och.finish_time)
                                                   AND oal.end_timestamp > CONCAT(date, ' ', och.start_time)
                                                   AND och.user_id = oal.user_id  
           ) as times ON times.task_id = t.task_id
           ORDER BY task_id, date;

    the results are here:

    https://i.ibb.co/Zzn3C9z/Untitled4.png

    what im trying to do is caluclate the number of days work it is for the task and the minutes remaining and add them to task start date, but the problem lies with days_work and hours_remaining not corresponding with the correct date and is all muddled up.

    i feel if i can get the @days_work and @remaining_minutes in the right dates i can get a task end timestamp working for all different task durations

     

    thank you for your help once again barand

  9. hi Barand,

    i've digested what it is you've done, but realised that the query would work of only that scenario, so ive had a little play for the last hour and this is what i've came up with

     

    SELECT ot.task_id
         , tt.duration_hours
    	 , ot.start_timestamp
         , @start_weekday := weekday(ot.start_timestamp)
    	, @days_work := IF (@start_weekday = 0 AND monday.shift_hours > tt.duration_hours, 0, 
           IF (@start_weekday = 1 AND monday.shift_hours + tuesday.shift_hours > tt.duration_hours, 1, 
           IF (@start_weekday = 2 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours > tt.duration_hours, 2,
    	   IF (@start_weekday = 3 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours > tt.duration_hours, 3, 
           IF (@start_weekday = 4 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours > tt.duration_hours, 4, 
           IF (@start_weekday = 5 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours > tt.duration_hours, 5, 
           IF (@start_weekday = 6  AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours + sunday.shift_hours > tt.duration_hours, 6, 'who knows'))))))) as `days_work`
    	, @hours_remaining := IF (@start_weekday = 0 AND monday.shift_hours > tt.duration_hours, tt.duration_hours, 
           IF (@start_weekday = 1 AND monday.shift_hours + tuesday.shift_hours > tt.duration_hours, tt.duration_hours - monday.shift_hours, 
           IF (@start_weekday = 2 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours > tt.duration_hours, tt.duration_hours - (monday.shift_hours + tuesday.shift_hours), 
    	   IF (@start_weekday = 3 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours > tt.duration_hours, tt.duration_hours - (monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours), 
           IF (@start_weekday = 4 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours > tt.duration_hours, tt.duration_hours - (monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours), 
           IF (@start_weekday = 5 AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours > tt.duration_hours, tt.duration_hours - (monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours), 
           IF (@start_weekday = 6  AND monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours + sunday.shift_hours > tt.duration_hours, tt.duration_hours - (monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours), 
           tt.duration_hours - (monday.shift_hours + tuesday.shift_hours + wednesday.shift_hours + thursday.shift_hours + friday.shift_hours + saturday.shift_hours + sunday.shift_hours)))))))) as `hours_remaining`
    	, ot.start_timestamp + INTERVAL (@days_work) DAY + INTERVAL (60 * @hours_remaining) MINUTE as `end_timestamp`
         FROM tasks t
    INNER JOIN operatives_tasks ot ON ot.task_id = t.task_id
    INNER JOIN task_types tt ON tt.task_type_id = t.task_type_id
    INNER JOIN users u on u.user_id = ot.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 0
    		   ) monday ON monday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 1
    		   ) tuesday ON tuesday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 2
    		   ) wednesday ON wednesday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 3
    ) thursday ON thursday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 4
    ) friday ON friday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 5
    ) saturday ON saturday.user_id = u.user_id
    LEFT JOIN (SELECT user_id
    				  , @contacted_hours_monday := TIMEDIFF(finish_time, start_time) AS `contracted_hours`
    				  , @hours := CONCAT('2020-01-01 ', @contacted_hours)
    				  , @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30
    				  , CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`
    		    FROM operative_contracted_hours
                WHERE week_day = 6
    ) sunday ON sunday.user_id = u.user_id
    INNER JOIN operatives_annual_leave oal ON oal.user_id = u.user_id
    WHERE u.user_id = 1

     

    https://i.ibb.co/GJYG2Vq/Untitled3.png

     

    so i've worked out how many days work and hours remaining and added it all to the start timestamp, but the big problem is, what if the task takes more than 7 days, i could go forever with these if statements.

    if its not possible with mysql then i could work it all out via php

    what are your thoughts please?

     

    thank you

  10. ooook so your a mysql geneious 😄 jeeez, to be honest im gonna have to look at the manual with what your written here, but i just ran the query and the result is beautiful

    i'll get onto implimenting annual holidays and bank holidays tomorrow, i'll let you know what it looks like, when its done.

     

    thank you very much barand 😁😁😁

  11. 1 hour ago, Barand said:

    Do all users always work the same hours every day? EG Wednesday 08:00 - 12:00 = short day and no break)

    What if a boiler installation starts at 3pm on a Friday?

    no, a user can have different work patterns, for instance a user could work monday, wednesday, friday from 8-1 each day.

     

    1 hour ago, Barand said:

    Suppose a task takes 10 hours. They start at 08:00 on day 1, take a 30 min break (12:30 - 13:00) then work until 16:00. They have now done 7.5 hours with 2.5 hour to go.

    Day2, starts at 08:00 but at 09:30 they have done another 4.5 hours on that task so break until 10:00 and finishes the task  at 11:00.

    On to the next task - at 15:30 is due another break after 4.5 hours work so has break and goes home at 16:00 having had two breaks that day (7 hours work)

    day 1 is correct in your scenario, but day 2 is a new day therefor if the user/operative is working from 8-4 again he/she will only be entitled to a break for 30 mins at 12.30, but break times can change depending on the users contacted hours. ie (8-12 no break)

    but 30 mins every 4.5 hrs is rule of thumb (daily)

    if working from, 08:00- 19:00,  9 hrs work the user would be entitled to 2 breaks, break at 12.00 - 12:30 then break at 16:30 - 17:00 and home for 19:00

    it probably make more sense to have a break on the 4th hour if entitled to breaks.

     

    would it be best for me to create a lof of if statements in the query? how is the best way for me to get the end results (task esistmated completion timestamp)?

     

    thank you again barand

  12.        @contacted_hours := TIMEDIFF(och.finish_time, och.start_time) AS `contracted_hours`,
           @hours := CONCAT('2020-01-01 ', @contacted_hours),
           @breaks := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) AS `breaks`,
    	   @break_duration := @breaks * 30 AS `break_duration`,
    	   CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`,
            IF (@breaks = 1, CONCAT("{[", DATE_ADD(och.start_time, INTERVAL 270 MINUTE), ":", DATE_ADD(och.start_time, INTERVAL 300 MINUTE),"]}"), 
            IF (@breakss = 2, CONCAT("{[", DATE_ADD(och.start_time, INTERVAL 270 MINUTE), ":", DATE_ADD(och.start_time, INTERVAL 300 MINUTE), "] , [", DATE_ADD(och.start_time, INTERVAL 540 MINUTE), ":", DATE_ADD(och.start_time, INTERVAL 570 MINUTE), "]}"), NULL)) AS `break_times`,

     

    i've also added break times which will display as {[12:30:00:13:00:00]}

  13. nice to hear from you again barand :), the caluclations are based on 4 variables

    firsly though ive noticed that i missed @contacted_hours := TIMEDIFF(och.finish_time, och.start_time) AS `contracted_hours`, from my sql

    SELECT u.username,
           tt.task_type, 
           tt.duration_hours `task_duration_hours`,
           ot.start_timestamp AS `task_start_timestamp`, 
           @task_week_day_start := WEEKDAY(ot.start_timestamp) AS `task_week_day_start`,
           och.shift_hours,
           och.week_day,
           och.start_time AS `operatives_start_time`,
           och.finish_time AS `operatives_finish_time`,
           annual_leave_start_timestamp,
           annual_leave_end_timestamp
    FROM tasks t
    LEFT JOIN operatives_tasks ot ON ot.task_id = t.task_id
    LEFT JOIN task_types tt ON tt.task_type_id = t.task_type_id
    LEFT JOIN users u on u.user_id = ot.user_id
    LEFT JOIN (
    	SELECT och.user_id,
               och.week_day,
               och.start_time,
               och.finish_time,
    		   @contacted_hours := TIMEDIFF(och.finish_time, och.start_time) AS `contracted_hours`,
    		   @hours := CONCAT('2020-01-01 ', @contacted_hours),
    		   @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30 AS `break_duration`,
    		   CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`,
    		   oal.start_timestamp AS `annual_leave_start_timestamp`,
               oal.end_timestamp AS `annual_leave_end_timestamp`
    	FROM operative_contracted_hours och 
        INNER JOIN operatives_annual_leave oal ON oal.user_id = och.user_id
    ) AS och ON och.user_id = u.user_id 
    WHERE u.user_id = 1

     

    the 4 variables are:

    @contacted_hours := TIMEDIFF(och.finish_time, och.start_time) AS `contracted_hours`,
    @hours := CONCAT('2020-01-01 ', @contacted_hours),
    @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30 AS `break_duration`,
    CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`,

    @contracted_hours for that weekday

    @hours is just a created timestamp so i can workout the breaks

    @break_duration is putting the timestamp into seconds and converting into a decimal (ie. 08:00 - 16:00 would be 8.0) then dividing by 4.5 hrs, as a employee is entitled to 30 mins break for every 4.5 hours work.

    shift_hours then just taking away the 30 min break in this case returning 7.5 (hours)

    in this particual query the task is 9 hours long, but i added a 2 hour annual leave for the next day, in operatives_annual_leave table.

    so the operative works 7.5 each day in this case, and the task duration is 9 hours (1.5 hrs remaining), meaning the task would have to extend over 2 days, including the 2 hour annual leave next day, the operative should be finished      2020-06-24 11:30:00

     

    i think im on the right track, but struggling to put it all together

     

    thanks you for your reply barand

  14. after along time away from trying to progamming, im trying to get back into the swing of things.

    I'm trying to complete a project i once started that @Barand helped me out with many moons ago.

     

    im trying to create a scheduling programme where a task is give to a operative and added to the operatives_tasks table, which stores the start timestamp of the task. Overall what im trying to achieve is to generate a finish timestamp for the task, based on the operatives, contracted days, hours, start time end time and any annual leave he/she man have in between aswell as the task duration.

     

    here is my sql and results at present, but im kinda scratching my head on generating a task finish date.

     

    SELECT u.username,
           tt.task_type, 
           tt.duration_hours `task_duration_hours`,
           ot.start_timestamp AS `task_start_timestamp`, 
           @task_week_day_start := WEEKDAY(ot.start_timestamp) AS `task_week_day_start`,
           och.shift_hours,
           och.week_day,
           och.start_time AS `operatives_start_time`,
           och.finish_time AS `operatives_finish_time`,
           annual_leave_start_timestamp,
           annual_leave_end_timestamp
    FROM tasks t
    LEFT JOIN operatives_tasks ot ON ot.task_id = t.task_id
    LEFT JOIN task_types tt ON tt.task_type_id = t.task_type_id
    LEFT JOIN users u on u.user_id = ot.user_id
    LEFT JOIN (
    	SELECT och.user_id,
               och.week_day,
               och.start_time,
               och.finish_time,
    		   @hours := CONCAT('2020-01-01 ', @contacted_hours),
    		   @break_duration := FLOOR(CAST(TIME_TO_SEC(@hours) / (60 * 60) AS DECIMAL(10, 1)) / 4.5) * 30 AS `break_duration`,
    		   CAST(TIME_TO_SEC(SUBSTRING( DATE_SUB(@hours, INTERVAL @break_duration MINUTE), 12, 19)) / (60 * 60) AS DECIMAL(10, 1)) AS `shift_hours`,
    		   oal.start_timestamp AS `annual_leave_start_timestamp`,
               oal.end_timestamp AS `annual_leave_end_timestamp`
    	FROM operative_contracted_hours och 
        INNER JOIN operatives_annual_leave oal ON oal.user_id = och.user_id
    ) AS och ON och.user_id = u.user_id 
    WHERE u.user_id = 1

     

    any help would be appreciated, here are the tables also if required

    https://pastebin.com/mKXLZUVJ

    better quality picture

    https://i.ibb.co/k01nYq2/Untitled.png

    thank you

     

    Untitled.png

  15. i've been playing around with nodejs sodium, and im trying to make my js scipt compatable with my php script.  Both are using xchacha20poly1305m but the problem is

    my php encryption looks like this: (whatever it is)

    ��Bd���||�%��AG�wU�Q��[�V���ȷ&6����_�Y:�q��T��X��e"v�

     

    and my js encrption look like that:

    Uint8Array {0: 195, 1: 119, 2: 234, 3: 247, 4: 236…}

     

    theres no way of testing the compatability of both scripts when both encodings differ.

     

    here is my php

    <?php
    
    CONST NONCE_LENGTH = SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES;
    
    class Sodium
    {
    	private $key;
    	
    	public function __construct(string $key)
    	{
    		if (!extension_loaded('sodium'))
    		{
    		    throw new Exception('Encryption: PHP Sodium extension not found.');
    		}
    		
    	    $key = trim($key);
    
            if (!preg_match('/^[0-9A-Fa-f]{64}+$/', $key))
            {
                throw new Exception('Encryption: Unrecognized key.');
            }
    		
    		$this->key = hex2bin($key);
    	}
    	
    	public function encrypt(string $plaintext)
    	{
    		$nonce = random_bytes(NONCE_LENGTH);
    		
    		$ciphertext = sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
    		    $plaintext,
    		    null,
    		    $nonce,
    		    $this->key
    		);
    		
    		return $nonce . $ciphertext;
    	}
    	
    	public function decrypt(string $encryption)
    	{
    		if (strlen($encryption) < 24)
    	    {
    	        throw new Exception('Encryption: Unrecognized Encryption.');
    	    }
    	   	    
    		$plaintext = sodium_crypto_aead_xchacha20poly1305_ietf_decrypt(
    		    substr($encryption, 24),
    		    null,
    		    substr($encryption, 0, 24),
    		    $this->key
    		);
    
    		if ($plaintext === false)
    		{
    		    throw new Exception('Encryption: Decryption Failed.');
    		}
    		
    		return $plaintext;
    	}
    }
    
    $sodium = new Sodium('724b092810ec86d7e35c9d067702b31ef90bc43a7b598626749914d6a3e033ed');
    $encryption = $sodium->encrypt('shhh this is a secret');
    echo $encryption;
    echo $sodium->decrypt($encryption);

     

    and you can view the js live here https://codesandbox.io/s/l45orjlnk7

    note: when viewing page you may have to delete a character of the code and replace to see results ?

    or theres a screenshot https://ibb.co/XkcPV4B

     

    i hope you can help with my dilemma

     

    thank you

     

  16. you need a trigger

    $(document).ready(function() {
     $('.trigger').click(function(){
        $('input.player_search').typeahead({
            name: 'player_name',
            remote: 'mysql.php?query=%QUERY',
        });
    });
    })
    
    // the html trigger
    
    <button class="trigger">Search</button>
    

    i see some big security risks with your  php also...your database is open to sql injection, you need to get that sorted before putting your script live.

     

    http://php.net/manual/en/mysqli.real-escape-string.php

     

    if you used PDO instead of mysqli you probably wouldnt have this problem.

  17. hey guys im tyring to pass a integer to a method and i get this error:

     

     

    Invalid numeric literal

     

     

    when using this code

    $this->get_model('contract:contracts')->send_verification_pin(070000000000);
    

    i could use quotes like so 

    $this->get_model('contract:contracts')->send_verification_pin('070000000000');
    

    but then the integer has the 0 missing at the beginning...this is my debug

    int(7000000000)
    /^07\d{9}$/
    ["Phone Number: Invalid phone number."]
    

    where is this missing 0 please guys? :suicide:

     

    thank you

  18. well the tablet would't have a verfication pin...but i planned on having 1 table ie. network_contracts to hoild users contratcs such as sim only, mobile and tablet.

     

    the verification pin is for when a user adds sim only / mobile, a pin is then sent to users phone number which needs to be verified.

  19. hey guys im wanting  to check if a row exists then update, else insert.

     

    i've been trying to get this query to work, but i'm not having much luck...i know some of you will say to use ON DUPLICATE KEY and make column phone_number primary key but that won't work as contract type column could be TABLET which has no phone number.

    IF EXISTS (SELECT network_contract_id FROM network_contracts WHERE phone_number = 123456 AND user_id = 1)
    
    	UPDATE  network_contracts
    	SET     verification_pin = 9891
    	WHERE   user_id = 1
    
    ELSE 
    
    	INSERT  INTO network_contracts(user_id, phone_number, contract_type, verification_pin)
    	VALUES  (1, 123456, 'Sim Only', 7676)
    

    any help/advise would be greatly appreciated.

     

    thank you guys

     

  20. thank you kicken for the useful information...i've look into purchasing a GSM Router and hopefully will go ahead with setting up my own gateway, but firstly i need to speak with the mobile network providers in the UK to ensure i'm not breaking any the T&C's by doing this.

     

    seems like a simple process to set up the hardware, also i see some scripts online that can process the AT commands to the com device....not sure if this is any good though.

     

    https://drive.google.com/file/d/0B0NgcxAkZSCHS2MzUEtQMWZYWUc0QmF0RzNBMUItck8wZUtR/edit

     

    thanks again

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