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Mastering Development

Inconsistent Paging in ASP.NET CORE

I am using ASP.NET CORE. I found a paging tutorial online and the codes are pasted below. I tried it out on my website but there was a problem that I faced. I set the pageSize to 20 so that it will display 20 sets of data per page. However, the number of data that […]

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Mastering Development

local and global arrays and segmentation fault

I’m having trouble with the following: I want to take a large number (cca. 15-digit) and turn it into individual digits and store them in an array. I will need these digits further on in the code. The problem is, if I declare the array outside the while loop, it stores the first four values, […]

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Mastering Development

Multiprocessing how do I improve this?

I have a script in which I am taking xlsx files and reformatting them and creating a txt document recording the reformatting. The script works well and does what I want it to do. However, It is not as fast as I would like as the multiprocessing is not being fully utilized. At times there […]

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Mastering Development

How to find out word length of a virtual machine?

I mounted ubuntu/trusty64 vagrant box (https://app.vagrantup.com/ubuntu/boxes/trusty64) and I have the following code: #include <stdio.h> int main () { short count = -1; int a = 5 ; int* a_ptr = &a; char b = ‘A’; char* b_ptr = &b; printf ("count’s value = %d \n", count); printf ("count’s address = %p \n", &count); printf ("a’s […]

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Database Development

How to write concat query for multiple ‘select into’ statement in mysql stored procedures?

I am trying to assign values to variables in mysql stored procedures. Here is my code declare count int; declare ParamOrgId int; declare isPremium int; SET @sql = CONCAT(‘ select count(id) , orgid , (select id from org_subscription t where t.orgid=mainOrgID) into ‘, @count,’,’,ParamOrgId ,’,’,isPremium ,’ ‘ from ‘, tableA ); PREPARE stmt from @sql; […]

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Mastering Development

I need to unstack or pivot keeping duplicated index

I would like to unstack a column but also keep the duplicated index. df = pd.DataFrame( data={‘Order’: [‘123’, ‘123’,’123′],\ ‘Ticket’: [‘987’, ‘987’,’987′],’Status’: [‘Added’, ‘Removed’, ‘Added’], \ ‘Dates’: [‘2016-02-15’, ‘2017-12-24’, ‘2018-01-24’]}) I tried this: df.pivot_table(index=[‘Order’, ‘Ticket’ ], columns=’Status’, values=’Dates’, aggfunc= ‘first’) and also tried this: df.insert(0, ‘count’, df.groupby([‘Order’, ‘Ticket’]).cumcount()) df.pivot(index=’count’, columns=’Status’, values=’Dates’) Looking to get result […]

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Mastering Development

deleting a text on doOnTextChanged deletes the special format of the edit text that I am setting programmatically

I am trying to format an edit text so when the user types the first two numbers, an ‘ is automatically added, then, after the two next numbers types a . so the final result looks like this: 12’34’567 The formatting works correctly, except that when the user deletes a character the ‘ and . […]

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Mastering Development

plot proportion change ggplot

I want to plot the proportion of datetime column for each day using a histogram. For example, the first day has 6 and the second day has 3 and I want to plot the proportion of change from the first day to the second day instead of just counts and do the same for the […]

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Database Development

Group by time interval and output the source and destination station_id and count

I am stuck with a query s_no | date | stn | dir 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | 01-02-2020 08:31 | 120 | 1 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | 01-02-2020 08:50 | 113 | 2 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | 01-02-2020 10:16 | 113 | 1 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | 01-02-2020 10:47 | 120 | 2 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | 01-02-2020 16:02 | 120 | 1 019b5526970fcfcf7813e9fe1acf8a41bcaf5a5a5c10870b3211d82f63fbf270 | […]

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CMS Mastering Development Wordpress

IF statement not working – Any suggestions?

So I have a function which counts the amount of customer orders. I want to show a congratulations modal that appears when a customer hits a specific amount of orders. All of my code is working fine, except when I add this part to the IF statement: || in_array($count, $the_digits) && isset( $_COOKIE[‘tier_advance’] ) && […]