Tutorial by Examples: in

@JoinTable Annotation Example

When mapping many-to-many relationships in JPA, configuration for the table used for the joining foreign-keys can be provided using the @JoinTable annotation: @Entity public class EntityA { @Id @Column(name="id") private long id; [...] @ManyToMany @JoinTable(name=...

jpa • Relations between entities

Insert into one table by selecting from another table

insert into schema.table (field1, field2) select 'Static Value', foreignField from schema.otherTable;

db2 • Insert into one table by selecting from another table

For sqlite package in nw.js

npm install sqlite3 --build-from-source --runtime=node-webkit --target_arch=ia32 --target= target is important. ex:0.16.1 npm rebuild Create a folder for sqlite db. Remember sequalize.sync();

sequelize.js • Set Up / Installation

Installation

Quick installation guide: Download and unzip the PrestaShop package to a directory in you web hosting. Create a database for PrestaShop. Open a browser to the url where are PrestaShop files. Follow the screen istructions. Delete the /install directory and rename /admin directory. Official ...

prestashop • Getting started with prestashop

Things to do when using html5Mode

When using html5Mode([mode]) it is necessary that: You specify the base URL for the application with a <base href=""> in the head of your index.html. It is important that the base tag comes before any tags with url requests. Otherwise, this might result in this error - &quo...

AngularJS • AngularJS gotchas and traps

Getting started with Android NDK with simple example

Using Android Studio 2.2 and higher Native Development Kit (NDK) you can use to compile C and C++ code. You can use NDK by manually downloading NDK and build it or through CMake . Here I will give process flow for manually install NDK and an example code, Based on your System OS you can download ...

android-ndk • Getting started with android-ndk

Following code will submit all JavaScript errors into Google Analytics

google-analytics • Logging JavaScript errors within Google Analytics

Manual creating JSON

import play.libs.Json; public JsonNode createJson() { // {"id": 33, "values": [3, 4, 5]} ObjectNode rootNode = Json.newObject(); ArrayNode listNode = Json.newArray(); long values[] = {3, 4, 5}; for (long val: values) { listNode.add(val); ...

playframework • Java - Working with JSON

Loading json from string/file

import play.libs.Json; // (...) Loading a file from your public folder // Note: "app" is an play.Application instance JsonNode node = Json.parse(app.resourceAsStream("public/myjson.json")); Load from a string String myStr = "{\"name\": \"John Doe\&qu...

playframework • Java - Working with JSON

Transversing a JSON document

In the following examples, json contains a JSON object with the following data: [ { "name": "John Doe", "work": { "company": { "name": "ASDF INC", "country": "USA" }, ...

playframework • Java - Working with JSON

Using different Properties/Configuration for different environments like dev, qa, staging etc.

Large scale applications often need different properties when running on different environments. we can achieve this by passing arguments to NodeJs application and using same argument in node process to load specific environment property file. Suppose we have two property files for different enviro...

Node.js • Deploying Node.js applications in production

Compress files and folders using the tar command

Use the tar (tape archive) command to compress your files and folders. It is similar to creating .ZIP files in Windows environment. Syntax: tar -zcvf <output tar file> <source file> Example: tar -zcvf outputfile.tar.gz source file Here’s what those switches actually mean: -c: Cr...

Ubuntu • Basic Terminal commands

Create an inbound filter for the search

Inbound filter is applied when item is added to the search index and allows to specify whether item is included to the index or not. Examples when inbound filter can be used - do not include standard values and previous versions of the item in the index. Inbound filters are set in configuration: ...

sitecore • Search

Delete all previous versions of the item in the index when adding new version

By default Sitecore adds all versions of the item to the sitecore_master_index. The drawback of that is that if users are using workflows and adding lots of versions all of them will be added to the search results in the content editor. Configuration: <event name="item:versionAdded" &...

sitecore • Search

Navigate to string

Show specified html string in WebView: var htmlString = @"<!DOCTYPE html> <html> <head><title>HTML document</title></head> <body> <p>This is simple HTML content.</p> </body>...

uwp • WebView navigation

Ninject Configurations

After the install of an IoC (Inversion of Control) container, some tweaks are needed to make it work. In this case, I'll use Ninject. In the NinjectWebCommon file, that is located in the App_Start folder, substitute the CreateKernel method with: private static IKernel CreateKernel() { ...

asp.net-mvc • Dependency Injection

Utilization of the interfaces

In the concrete class that need the service, use the interface to access the service instead of its implementation like: public class BenefitAppService { private readonly IBenefitService _service; public BenefitAppService(IBenefitService service) { _service = service; ...

asp.net-mvc • Dependency Injection

Running GUI apps in a Linux container

By default, a Docker container won't be able to run a GUI application. Before that, the X11 socket must be forwarded first to the container, so it can be used directly. The DISPLAY environment variable must be forwarded as well: docker run -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=unix$DISPLAY &...

Docker • Running containers

Indent an entire file using built-in indentention engine

In command mode(Esc) enter :gg=G to use Vim's built-in indention engine. Command PartDescriptionggstart of file=indent (when equalprg is empty)Gend of file You can set equalprg in your .vimrc to use a more sophisticated auto-formatting tool. For example, to use clang-format for C/C++ put the foll...

vim • Indentation

Processing long running queries with Node

Since Node is single-threaded, there is a need of workaround if it comes to a long-running calculations. Note: this is "ready to run" example. Just, don't forget to get jQuery and install the required modules. Main logic of this example: Client sends request to the server. Server sta...

Node.js • Performance challenges