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Reset the database (purge all), then seed a database
... the whole shebang just to reload your data, you could use MyModel.destroy_all (or delete_all) in the seed.db file to clean out a table before your MyModel.create!(...) statements load the data. Then, you can redo the db:seed operation over and over. (Obviously, this only affects the tables you've...
Find and replace strings in vim on multiple lines
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@TayyarR The range covers the lines (vertically, so to speak), while the 'g' flag determines whether only one or all matches within the line (so horizontally) are replaced.
– Ingo Karkat
Feb 15 at 20:58
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How do I temporarily disable triggers in PostgreSQL?
I'm bulk loading data and can re-calculate all trigger modifications much more cheaply after the fact than on a row-by-row basis.
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sql query to return differences between two tables
...g to compare two tables, SQL Server, to verify some data. I want to return all the rows from both tables where data is either in one or the other. In essence, I want to show all the discrepancies. I need to check three pieces of data in doing so, FirstName, LastName and Product.
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INSERT IF NOT EXISTS ELSE UPDATE?
...ement case the statement would set it to NULL and then a fresh ID would be allocated.
This approach can also be used if you want to leave particular field values alone if the row in the replacement case but set the field to NULL in the insert case.
For example, assuming you want to leave Seen alon...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...ronments,
in addition I would like to explain some issues that you might fall into while setting up your environment.
If you are looking for a quick solution and SECURITY IS NOT A MATTER, i.e development env, skip and read the original answer instead
Many scenarios can lead to 403 Forbidden:
A...
Enable the display of line numbers in Visual Studio
...al Studio has line numbering:
Tools -> Options -> Text Editor -> All Languages -> check the "Line numbers" checkbox.
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Removing All Child Views from View
How would I remove all child views from a widget? For example, I have a GridView and I dynamically inflate many other LinearLayouts into it; later in my application I am looking to start fresh with that GridView and clear all of its child Views. How would I do this? TIA.
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How do I ignore all files in a folder with a Git repository in Sourcetree?
...will make git track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
– Billy Moon
Mar 12 '12 at 10:36
2
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Callback after all asynchronous forEach callbacks are completed
...veral ways to accomplish what you want:
Using a simple counter
function callback () { console.log('all done'); }
var itemsProcessed = 0;
[1, 2, 3].forEach((item, index, array) => {
asyncFunction(item, () => {
itemsProcessed++;
if(itemsProcessed === array.length) {
callback(...