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Postgresql GROUP_CONCAT equivalent?
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This is probably a good starting point (version 8.4+ only):
SELECT id_field, array_agg(value_field1), array_agg(value_field2)
FROM data_table
GROUP BY id_field
array_agg returns an array, but you can CAST that to text and ed...
PDOException SQLSTATE[HY000] [2002] No such file or directory
...bit, but as soon as I connect to SSH to run some commands (such as php artisan migrate or php artisan db:seed ) I get an error message:
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Re-doing a reverted merge in Git
... git-merge command sees the original merge, and happily announces that all is well and branches have been already merged. What do I do now? Create a 'Revert "Revert "28s -> develop"" ' commit? Doesn't seem to be a good way to do it, but I can't imagine any other at the moment.
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Default visibility of class methods in PHP
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Default is public.
Class methods may be defined as public, private, or protected. Methods declared without any explicit visibility keyword are defined as public.
http://www.php.net/manual/en/language.oop5.visibility.php
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how to draw directed graphs using networkx in python?
...= 500)
nx.draw_networkx_labels(G, pos)
nx.draw_networkx_edges(G, pos, edgelist=red_edges, edge_color='r', arrows=True)
nx.draw_networkx_edges(G, pos, edgelist=black_edges, arrows=False)
plt.show()
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Safely remove migration In Laravel
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I accidentally created a migration with a bad name (command: php artisan migrate:make). I did not run (php artisan migrate) the migration, so I decided to remove it.
My steps:
Manually delete the migration file under app/database/migrations/my_migration_file_name.php
Reset the composer auto...
Rebasing a Git merge commit
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There are two options here.
One is to do an interactive rebase and edit the merge commit, redo the merge manually and continue the rebase.
Another is to use the --rebase-merges option on git rebase, which is described as follows from the manual:
By default...
Datetime equal or greater than today in MySQL
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edited Mar 25 '15 at 16:14
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Multiple models in a view
...have 2 models in one view. The page contains both LoginViewModel and RegisterViewModel .
12 Answers
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How to get MD5 sum of a string using python?
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edited Nov 16 '17 at 11:39
Muhammad Raihan Muhaimin
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