ssh host alias (~/.ssh/config)
~/.ssh/config # always login as `marioosh` user Host * User marioosh # aliases for marioosh.net Host alias1 alias2 alias3 HostName marioosh.net Now You can login as below: $ ssh alias1 $ ssh alias2 $ ssh alias3
Docker – inspect running container
List running containers $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ec7ad9e8d7a5 spring-demo "java -jar /app.war" 3 minutes ago Up 3 minutes nifty_boyd$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ec7ad9e8d7a5 spring-demo "java -jar /app.war" 3 minutes ago Up 3 minutes nifty_boyd Go inside running container and run command Read more about Docker – inspect running container[…]
SQL: UPDATE by SELECT
Need update t_reports table, column tanked_sum. t_reports – reports table – tanked_sum – sum of tanked from t_vehicles table t_vehicles – vehicles table (more than one vehicle is in one report) – tanked – refueled liters of fuel for one vehicle — select only (count in `tanked_sum_counted` column) SELECT tanked_sum_counted, * FROM t_reports r JOIN ( SELECT Read more about SQL: UPDATE by SELECT[…]
Sublime Text as editor in Git-Bash
In ~/.gitconfig (or %USERPROFILE%\.gitconfig on Windows): [core] editor = sublime_text -n -w[core] editor = sublime_text -n -w
Library in Angular project
Creating library inside Anuglar app to make reusable in another projects. Making utils-lib library, default prefix fo selectors will be utils $ ng g library utils-lib –prefix utils$ ng g library utils-lib –prefix utils Create simple directive in previously created library: $ ng g d simple –project utils-lib –export$ ng g d simple –project utils-lib Read more about Library in Angular project[…]
@Optional dependency in Angular
Usage of @Optional (optional dependency), for example when LoginComponent is used as dialog or standalone. import { Optional } from ‘@angular/core’; constructor( @Optional() private dialogRef: MatDialogRef<LoginComponent>, ) { … } import { Optional } from ‘@angular/core’; constructor( @Optional() private dialogRef: MatDialogRef<LoginComponent>, ) { … }
Reactive Form: previous value
let form = this.fb.group({ ‘hotelLocation’:[null] }); form.get(’hotelLocation’).valueChanges.subscribe(v => { // HERE !! let prevVal = this.form.value[’hotelLocation’]; });let form = this.fb.group({ ‘hotelLocation’:[null] }); form.get(‘hotelLocation’).valueChanges.subscribe(v => { // HERE !! let prevVal = this.form.value[‘hotelLocation’]; });
@DateTimeFormat usage example
@GetMapping("/find") public Page<ReportProjection> reports( @RequestParam(required = false, name = "status") ReportStatus status, @RequestParam(required = false, name = "search") String search, @DateTimeFormat(pattern="yyyy-MM-dd") @RequestParam(required = false, name = "from") Date from, @DateTimeFormat(pattern="yyyy-MM-dd") @RequestParam(required = false, name = "to") Date to, Pageable pageable) { return reportService.reports(status, search, from, to, pageable); }@GetMapping("/find") public Page<ReportProjection> reports( @RequestParam(required = false, name Read more about @DateTimeFormat usage example[…]
List to Map (streams)
@Getter @Setter class Directory { Long id; String name; } List<Directory> l = repo.allDirectories(); Map<Long, String> m = l.stream() .collect(Collectors.toMap(d -> d.getId(), d -> d.getName()));@Getter @Setter class Directory { Long id; String name; } List<Directory> l = repo.allDirectories(); Map<Long, String> m = l.stream() .collect(Collectors.toMap(d -> d.getId(), d -> d.getName()));
@PreAuthorize and SpEL params
If @PreAuthorize is used on interface, parameter name (id) in SpEL must match parameter name in implementation (not required on interface – fileId). @Transactional public interface FileService { @PreAuthorize("@securityService.canAccessFile(#id)") File getFile(Long fileId); } /** * GOOD */ @Service public class FileServiceImpl implements FileService { @Override public File getFile(Long id) { /* … Read more about @PreAuthorize and SpEL params[…]