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Do 
$model->save();

before
$model->file->saveAs()

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'assetManager' => [
  'class' => 'yii\web\AssetManager',
  'forceCopy' => YII_DEBUG,
  'appendTimestamp' => YII_DEBUG,
]

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tar -czvf name-of-archive.tar.gz /path/to/directory-or-file

Here’s what those switches actually mean:

-c: Create an archive.
-z: Compress the archive with gzip.
-v: Display progress in the terminal while creating the archive, also known as “verbose” mode. The v is always optional in these commands, but it’s helpful.
-f: Allows you to specify the filename of the archive.

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# BEGIN Force SSL
# This should be the first rule before other rules
<IfModule mod_rewrite.c>
    RewriteEngine On

    RewriteCond %{HTTPS} !=on
    RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]
</IfModule>
# END Force SSL

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CREATE FUNCTION distance_between (from_lat DECIMAL(6, 3), from_lng DECIMAL(6, 3), to_lat DECIMAL(6, 3), to_lng DECIMAL(6, 3)) RETURNS DECIMAL(11, 3)
RETURN 6371 * 2 * ATAN2(SQRT(POW(SIN(RADIANS(to_lat - from_lat)/2), 2) + POW(SIN(RADIANS(to_lng - from_lng)/2), 2) * COS(RADIANS(from_lat)) * COS(RADIANS(to_lat))), SQRT(1 - POW(SIN(RADIANS(to_lat - from_lat)/2), 2) + POW(SIN(RADIANS(to_lng - from_lng)/2), 2) * COS(RADIANS(from_lat)) * COS(RADIANS(to_lat))));

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var express = require('express');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var flash = require('express-flash');
var handlebars = require('express-handlebars')

var app = express();
var sessionStore = new session.MemoryStore;

// View Engines

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var storage = multer.diskStorage({
  destination: function (req, file, cb) {
    cb(null, './uploads/')
  },
  filename: function (req, file, cb) {
    crypto.pseudoRandomBytes(16, function (err, raw) {
      cb(null, raw.toString('hex') + Date.now() + '.' + mime.extension(file.mimetype));
    });
  }
});

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<?xml version="1.0" encoding="UTF-8"?>

<!-- config.xml reference: https://build.phonegap.com/docs/config-xml -->
<widget xmlns     = "http://www.w3.org/ns/widgets"
        xmlns:gap = "http://phonegap.com/ns/1.0"
        id        = "com.phonegap.helloworld"
        version   = "2.5.0">

    <name>UNDP</name>

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<script>
    var baseHref = window.location.href.split('/');
    baseHref.pop();
    document.write('<base href="' + baseHref.join('/') + '/" />');
</script>

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CREATE EXTENSION citext; -- to create


ALTER TABLE <table name>
    ALTER COLUMN <column_name> TYPE citext; -- to apply