In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.
Some examples:
7 # integer literal
Mathieu EUSTACHY Mth0158
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fxn
/ ruby-the-future-of-frozen-string-literals.md
Last active
September 5, 2024 14:39
DRBragg
/ active_storage_cheatsheet.md
Created
May 28, 2020 04:03
— forked from naoufalelh/active_storage_cheatsheet.md
A Ruby on Rails Active Storage Cheatsheet
nhattan
/ .gitlab-ci.yaml
Created
March 19, 2020 08:15
Gitlab CI/CD for Rails, Postgres, Rspec, Brakeman
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| stages: | |
| - build | |
| - test | |
| - deploy | |
| .base: | |
| image: ruby:2.7.0 | |
| cache: | |
| key: gems_and_packages | |
| paths: |
pietromoro
/ before_render.rb
Last active
September 9, 2024 13:28
BeforeRender Callback as concern for rails controller(s). Use it with the same syntax used for other callbacks, just include in the controller. Fires after action but before rendering happens.
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| module BeforeRender | |
| extend ActiveSupport::Concern | |
| included do | |
| alias_method :render_without_before_render_action, :render | |
| alias_method :render, :render_with_before_render_action | |
| define_callbacks :render | |
| end | |
| def render_with_before_render_action(*options, &block) |
joshbuchea
/ semantic-commit-messages.md
Last active
September 20, 2024 17:38
Semantic Commit Messages
loziju
/ macosx-configure-postfix-as-relay.md
Last active
August 29, 2024 03:01
Configure postfix as relay for OS X
- Source: http://www.developerfiles.com/how-to-send-emails-from-localhost-mac-os-x-el-capitan/
- Source: http://budiirawan.com/install-mail-server-mac-osx/
- Source: https://apple.stackexchange.com/questions/32228/whats-the-correctly-way-to-make-postfix-run-permanently-on-lion-not-server
sudo vi /etc/postfix/main.cf- Ensure that the following values are set:
AtulKsol
/ psql-error-fix.md
Last active
August 17, 2024 21:55
Solution of psql: FATAL: Peer authentication failed for user “postgres” (or any user)
The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).
If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.
But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:
from
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| module Excel | |
| module Formulas | |
| def pmt(rate, nper, pv, fv=0, type=0) | |
| ((-pv * pvif(rate, nper) - fv ) / ((1.0 + rate * type) * fvifa(rate, nper))) | |
| end | |
| def ipmt(rate, per, nper, pv, fv=0, type=0) | |
| p = pmt(rate, nper, pv, fv, 0); | |
| ip = -(pv * pow1p(rate, per - 1) * rate + p * pow1pm1(rate, per - 1)) | |
| (type == 0) ? ip : ip / (1 + rate) |