0.16.0

Fixes #56

.editorconfig

@@ -1,4 +1,3 @@
-# EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs
 # editorconfig.org
 
 root = true
@@ -7,11 +6,10 @@ root = true
 indent_style = space
 indent_size = 2
 
-# We recommend you to keep these unchanged
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
 [*.md]
-trim_trailing_whitespace = false
+trim_trailing_whitespace = false

.gitignore

@@ -20,7 +20,7 @@ coverage
 # nyc test coverage
 .nyc_output
 
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
 .grunt
 
 # Bower dependency directory (https://bower.io/)
@@ -29,14 +29,14 @@ bower_components
 # node-waf configuration
 .lock-wscript
 
-# Compiled binary addons (http://nodejs.org/api/addons.html)
+# Compiled binary addons (https://nodejs.org/api/addons.html)
 build/Release
 
 # Dependency directories
 node_modules/
 jspm_packages/
 
-# Typescript v1 declaration files
+# TypeScript v1 declaration files
 typings/
 
 # Optional npm cache directory
@@ -57,6 +57,29 @@ typings/
 # dotenv environment variables file
 .env
 
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+#DynamoDB Local files
+.dynamodb/
+
+########## end of https://github.com/github/gitignore/blob/master/Node.gitignore
+
 # ignore ide files
 .idea
 .vscode

.npmignore

@@ -1,14 +1,12 @@
 # Ignore all files/folders by default
 # See https://stackoverflow.com/a/29932318
 /*
-
+# Except these files/folders
-# Execept this files/folders
-!docs
 !lib
+lib/tsconfig.tsbuildinfo
 !LICENSE
 !package.json
 !package-lock.json
 !README.md
 !src
-test/*
 !test/resources/

CHANGELOG.md

@@ -1,3 +1,43 @@
+# [0.15.0](https://gitlab.com/openstapps/core/compare/v0.14.0...v0.15.0) (2019-04-09)
+
+
+### Bug Fixes
+
+* change SCThingMeta getInstance() return value ([4986042](https://gitlab.com/openstapps/core/commit/4986042))
+* resolve issues with things that can be offered ([623ed61](https://gitlab.com/openstapps/core/commit/623ed61)), closes [#41](https://gitlab.com/openstapps/core/issues/41)
+
+
+### Features
+
+* provide context based search ([3242411](https://gitlab.com/openstapps/core/commit/3242411))
+
+
+
+# [0.14.0](https://gitlab.com/openstapps/core/compare/v0.13.0...v0.14.0) (2019-04-03)
+
+
+### Features
+
+* add model for plugin register route ([8188731](https://gitlab.com/openstapps/core/commit/8188731))
+
+
+
+# [0.13.0](https://gitlab.com/openstapps/core/compare/v0.12.0...v0.13.0) (2019-04-02)
+
+
+### Bug Fixes
+
+* correct isThing guard ([67868e9](https://gitlab.com/openstapps/core/commit/67868e9))
+* update tslint  dependencies ([bbe4fca](https://gitlab.com/openstapps/core/commit/bbe4fca))
+
+
+### Features
+
+* add conditional "maps" for associated types ([c8bda2e](https://gitlab.com/openstapps/core/commit/c8bda2e)), closes [#50](https://gitlab.com/openstapps/core/issues/50)
+* provide sample JSON files with the package ([5d1e79d](https://gitlab.com/openstapps/core/commit/5d1e79d)), closes [#46](https://gitlab.com/openstapps/core/issues/46)
+
+
+
 # [0.12.0](https://gitlab.com/openstapps/core/compare/v0.11.0...v0.12.0) (2019-03-14)
 
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@openstapps/core",
-  "version": "0.13.0",
+  "version": "0.16.0",
   "description": "StAppsCore - Generalized model of data",
   "keywords": [
     "Model",
@@ -17,7 +17,7 @@
     "build": "npm run tslint && npm run compile && npm run pack && npm run schema && npm run documentation",
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0 && git add CHANGELOG.md && git commit -m 'docs: update changelog'",
     "check-configuration": "openstapps-configuration",
-    "compile": "tsc",
+    "compile": "rimraf lib && tsc",
     "documentation": "typedoc --name \"@openstapps/core\" --includeDeclarations --mode modules --out docs --readme README.md --listInvalidSymbolLinks lib",
     "pack": "openstapps-core-tools pack",
     "prepublishOnly": "npm ci && npm run build",
@@ -42,24 +42,24 @@
     "ts-optchain": "0.1.3"
   },
   "devDependencies": {
-    "@openstapps/configuration": "0.8.0",
+    "@openstapps/configuration": "0.11.0",
-    "@openstapps/core-tools": "0.3.0",
+    "@openstapps/core-tools": "0.5.1",
     "@openstapps/logger": "0.0.5",
     "@types/chai": "4.1.7",
     "@types/node": "10.14.4",
     "@types/rimraf": "2.0.2",
     "async-pool-native": "0.1.0",
     "chai": "4.2.0",
-    "commander": "2.19.0",
+    "commander": "2.20.0",
     "conventional-changelog-cli": "2.0.12",
-    "mocha": "6.0.2",
+    "mocha": "6.1.3",
     "mocha-typescript": "1.1.17",
     "nyc": "13.3.0",
     "rimraf": "2.6.3",
-    "ts-node": "8.0.3",
+    "ts-node": "8.1.0",
     "tslint": "5.15.0",
     "typedoc": "0.14.2",
-    "typescript": "3.4.1"
+    "typescript": "3.4.3"
   },
   "nyc": {
     "check-coverage": true,

src/core/Thing.ts

@@ -222,7 +222,7 @@ export class SCThingMeta implements SCMetaTranslations<SCThing> {
   /**
    * Set type definiton for singleton instance
    */
-  protected static _instance: SCThingMeta;
+  protected static _instance = new Map<string, unknown>();
 
   /**
    * Translations of fields
@@ -268,8 +268,10 @@ export class SCThingMeta implements SCMetaTranslations<SCThing> {
    * Function to retrieve typed singleton instance
    */
   public static getInstance<T extends SCThingMeta>(): T {
-    const typedThis = this as any as typeof SCThingMeta;
+    if (!this._instance.has(this.name)) {
-    return (typedThis._instance || (typedThis._instance = new this())) as T;
+      this._instance.set(this.name, new this());
+    }
+    return this._instance.get(this.name) as T;
   }
 
   protected constructor() {}

src/core/base/ThingThatCanBeOffered.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2019 StApps
+ * Copyright (C) 2018, 2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -16,8 +16,8 @@ import {SCThing, SCThingTranslatableProperties} from '../Thing';
 import {SCOrganizationWithoutReferences} from '../things/Organization';
 import {SCPersonWithoutReferences} from '../things/Person';
 import {SCTranslations} from '../types/i18n';
+import {SCInPlace} from '../types/Places';
 import {SCISO8601Date} from '../types/Time';
-import {SCInPlace} from './../types/Places';
 
 /**
  * Default price without distinction
@@ -50,7 +50,17 @@ export interface SCAcademicPriceGroup extends SCPriceGroup {
 }
 
 /**
- * A thing without references that has a price tag
+ * A thing without references that can be offered
+ */
+export interface SCThingThatCanBeOfferedWithoutReferences extends SCThing {
+  /**
+   * Translations of a thing that can be offered
+   */
+  translations?: SCTranslations<SCThingThatCanBeOfferedTranslatableProperties>;
+}
+
+/**
+ * A thing that can be offered
  */
 export interface SCThingThatCanBeOffered<T extends SCPriceGroup>
   extends SCThing {
@@ -58,11 +68,6 @@ export interface SCThingThatCanBeOffered<T extends SCPriceGroup>
    * List of offers for that thing
    */
   offers?: Array<SCThingThatCanBeOfferedOffer<T>>;
-
-  /**
-   * Translations of a thing that can be offered
-   */
-  translations?: SCTranslations<SCThingThatCanBeOfferedTranslatableProperties>;
 }
 
 /**

src/core/protocol/errors/ErrorResponse.ts

@@ -42,6 +42,7 @@ export abstract class SCError implements SCErrorResponse {
 
   /**
    * Instatiate an SCError
+   *
    * @param name Name of the error
    * @param message Message of the error
    * @param statusCode  HTTP status code to return this error with
@@ -66,6 +67,7 @@ export class SCValidationErrorResponse extends SCError {
 
   /**
    * Create a SCValidationErrorResponse
+   *
    * @param errors List of validation errors
    * @param stack Set to true if a stack trace should be created
    */
@@ -81,6 +83,7 @@ export class SCValidationErrorResponse extends SCError {
 export class SCUnsupportedMediaTypeErrorResponse extends SCError {
   /**
    * Create a SCUnsupportedMediaTypeErrorResponse
+   *
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
@@ -94,6 +97,7 @@ export class SCUnsupportedMediaTypeErrorResponse extends SCError {
 export class SCMethodNotAllowedErrorResponse extends SCError {
   /**
    * Create a SCMethodNotAllowedErrorResponse
+   *
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
@@ -120,6 +124,7 @@ export class SCRequestBodyTooLargeErrorResponse extends SCError {
 export class SCTooManyRequestsErrorResponse extends SCError {
   /**
    * Create a SCTooManyRequestsErrorResponse
+   *
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
@@ -133,6 +138,7 @@ export class SCTooManyRequestsErrorResponse extends SCError {
 export class SCNotFoundErrorResponse extends SCError {
   /**
    * Create a SCNotFoundErrorResponse
+   *
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
@@ -140,12 +146,80 @@ export class SCNotFoundErrorResponse extends SCError {
   }
 }
 
+/**
+ * An error that is returned when the request is in the right format, but contains parameters that are invalid or not
+ * acceptable.
+ */
+export class SCParametersNotAcceptable extends SCError {
+  /**
+   * Create a ParametersNotAcceptable
+   *
+   * @param message contains more details to what you did wrong
+   * @param stack Set to true if a stack trace should be created
+   */
+  constructor(message: string, stack?: boolean) {
+    super('ParametersNotAcceptable', message, 406, stack);
+  }
+}
+
+/**
+ * An error that is returned when a plugin with the same name is already registered, to prevent two copies of a plugin
+ * running at the same time.
+ * This usually indicates that there is more than one instance a plugin running.
+ */
+export class SCPluginAlreadyRegisteredErrorResponse extends SCError {
+  /**
+   * Create a PluginAlreadyRegisteredError
+   *
+   * @param message contains potential differences in other parameters outside of the name
+   * @param stack Set to true if a stack trace should be created
+   */
+  constructor(message: string, stack?: boolean) {
+    super('PluginRegisteringFailedError', message, 409, stack);
+  }
+}
+
+/**
+ * An error that is returned whenever there is an unexpected error while creating a plugin
+ */
+export class SCPluginRegisteringFailedErrorResponse extends SCError {
+  /**
+   * Create a PluginRegisteringFailedError
+   *
+   * @param message Describes what went wrong wile registering the plugin
+   * @param stack Set to true if a stack trace should be created
+   */
+  constructor(message: string, stack?: boolean) {
+    super('PluginRegisteringFailedError', message, 500, stack);
+  }
+}
+
+/**
+ * An error that is returned whenever there is a plugin request that is supposed to register a route, that is already
+ * registered
+ * This usually indicates that two **different** plugins use the same route.
+ */
+export class SCPluginRouteAlreadyRegisteredErrorResponse extends SCError {
+  /**
+   * Create a PluginRouteAlreadyRegisteredError
+   *
+   * @param registeredName The name by the plugin that has already registered the route previously
+   * @param registeredUrl  The URL by the plugin that has already registered the route previously
+   * @param stack Set to true if a stack trace should be created
+   */
+  constructor(registeredName: string, registeredUrl: string, stack?: boolean) {
+    super('PluginRouteAlreadyRegisteredError',
+      `Already registered by "${registeredName}" under URL "${registeredUrl}".`, 409, stack);
+  }
+}
+
 /**
  * An error that is returned whenever there is a syntax error
  */
 export class SCSyntaxErrorResponse extends SCError {
   /**
    * Create a SyntaxError
+   *
    * @param message Describes the syntax error
    * @param stack Set to true if a stack trace should be created
    */
@@ -165,6 +239,7 @@ export class SCInternalServerErrorResponse extends SCError {
 
   /**
    * Create a SCInternalServerErrorResponse
+   *
    * @param err Internal server error
    * @param stack Set to true if a stack trace should be created 
    * and the internal server error should be displayed to the client

src/core/protocol/routes/plugin/PluginRegisterRequest.ts

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2019 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+import {Schema} from 'jsonschema';
+import {SCAbstractRoute, SCRouteHttpVerbs} from '../../../Route';
+import {
+  SCInternalServerErrorResponse,
+  SCMethodNotAllowedErrorResponse, SCParametersNotAcceptable,
+  SCPluginAlreadyRegisteredErrorResponse,
+  SCPluginRegisteringFailedErrorResponse,
+  SCPluginRouteAlreadyRegisteredErrorResponse,
+  SCRequestBodyTooLargeErrorResponse,
+  SCSyntaxErrorResponse,
+} from '../../errors/ErrorResponse';
+
+/**
+ * Plugin register request
+ *
+ * @validatable
+ */
+export type SCPluginRegisterRequest = AddPlugin | RemovePlugin;
+interface AddPlugin {
+  /**
+   * The desired action, so whether the plugin should be added or removed
+   */
+  action: 'add';
+
+  /**
+   * The address of the plugin
+   */
+  address: string;
+
+  /**
+   * The name of the plugin
+   * Just for debugging purposes, to more easily identify conflicts.
+   */
+  name: string;
+
+  /**
+   * How the requests of the plugin looks like, a JSON schema for validation
+   */
+  pluginRequestSchema: Schema;
+
+  /**
+   * How the responses of the plugin looks like, a JSON schema for validation
+   */
+  pluginResponseSchema: Schema;
+
+  /**
+   * The desired route, for example /feedback.
+   */
+  route: string;
+}
+interface RemovePlugin {
+  /**
+   * The desired action, so whether the plugin should be added or removed
+   */
+  action: 'remove';
+
+  /**
+   * The route of the plugin you want to remove
+   */
+  route: string;
+}
+
+/**
+ * Route to register plugins
+ */
+export class SCPluginRegisterRoute extends SCAbstractRoute {
+  constructor() {
+    super();
+    this.errorNames = [
+      SCInternalServerErrorResponse,
+      SCMethodNotAllowedErrorResponse,
+      SCParametersNotAcceptable,
+      SCPluginAlreadyRegisteredErrorResponse,
+      SCPluginRouteAlreadyRegisteredErrorResponse,
+      SCPluginRegisteringFailedErrorResponse,
+      SCPluginRouteAlreadyRegisteredErrorResponse,
+      SCRequestBodyTooLargeErrorResponse,
+      SCSyntaxErrorResponse,
+    ];
+    this.method = SCRouteHttpVerbs.POST;
+    this.requestBodyName = 'SCPluginRegisterRequest';
+    this.responseBodyName = 'SCPluginRegisterResponse';
+    this.statusCodeSuccess = 200;
+    this.urlFragment = '/plugin/register';
+  }
+}

src/core/protocol/routes/plugin/PluginRegisterResponse.ts

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2019 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Plugin register response
+ *
+ * @validatable
+ */
+export interface SCPluginRegisterResponse {
+  /**
+   * Whether the desired action succeeded or failed (true for success, false if an error occurred)
+   */
+  success: boolean;
+}

src/core/protocol/routes/search/SearchRequest.ts

@@ -13,6 +13,7 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {SCAbstractRoute, SCRouteHttpVerbs} from '../../../Route';
+import {SCSearchContext} from '../../../types/config/Backend';
 import {SCSearchFilter} from '../../../types/filters/Abstract';
 import {SCSearchSort} from '../../../types/sorts/Abstract';
 import {
@@ -37,7 +38,12 @@ export interface SCSearchRequest extends SCSearchQuery {
  */
 export interface SCSearchQuery {
   /**
-   *  A filter structure that combines any number of filters with boolean methods ('AND', 'OR', 'NOT')
+   * The context name from where the search query was initiated
+   */
+  context?: SCSearchContext;
+
+  /**
+   * A filter structure that combines any number of filters with boolean methods ('AND', 'OR', 'NOT')
    */
   filter?: SCSearchFilter;
 

src/core/things/CourseOfStudies.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018, 2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -13,9 +13,12 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {SCAcademicDegree, SCAcademicDegreeMeta} from '../base/AcademicDegree';
-import {SCAcademicPriceGroup,
+import {
-        SCThingThatCanBeOffered,
+  SCAcademicPriceGroup,
-        SCThingThatCanBeOfferedTranslatableProperties} from '../base/ThingThatCanBeOffered';
+  SCThingThatCanBeOffered,
+  SCThingThatCanBeOfferedTranslatableProperties,
+  SCThingThatCanBeOfferedWithoutReferences,
+} from '../base/ThingThatCanBeOffered';
 import {SCThingMeta, SCThingType} from '../Thing';
 import {SCLanguage, SCMetaTranslations, SCTranslations} from '../types/i18n';
 import {SCDateSeriesWithoutReferences} from './DateSeries';
@@ -24,9 +27,8 @@ import {SCOrganization} from './Organization';
 /**
  * A course of studies without references
  */
-export interface SCCourseOfStudiesWithoutReferences extends
+export interface SCCourseOfStudiesWithoutReferences extends SCAcademicDegree,
-                 SCAcademicDegree,
+  SCThingThatCanBeOfferedWithoutReferences {
-                 SCThingThatCanBeOffered<SCAcademicPriceGroup> {
   /**
    * The main language in which the course of studies
    * is beeing offered
@@ -64,14 +66,15 @@ export interface SCCourseOfStudiesWithoutReferences extends
  *
  * @validatable
  */
-export interface SCCourseOfStudies extends SCCourseOfStudiesWithoutReferences {
+export interface SCCourseOfStudies extends SCCourseOfStudiesWithoutReferences,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup> {
   /**
    * The department that manages the course of studies
    */
   department: SCOrganization;
 
   /**
-   * The secretary that administers requests and 
+   * The secretary that administers requests and
    * questions concerning the course of studies
    */
   secretary: SCOrganization;
@@ -81,6 +84,11 @@ export interface SCCourseOfStudies extends SCCourseOfStudiesWithoutReferences {
    */
   startDates?: SCDateSeriesWithoutReferences[];
 
+  /**
+   * Translated fields of a dish
+   */
+  translations?: SCTranslations<SCCourseOfStudiesTranslatableProperties>;
+
   /**
    * Type of the course of studies
    */
@@ -88,7 +96,7 @@ export interface SCCourseOfStudies extends SCCourseOfStudiesWithoutReferences {
 }
 
 export interface SCCourseOfStudiesTranslatableProperties
-       extends SCThingThatCanBeOfferedTranslatableProperties {
+  extends SCThingThatCanBeOfferedTranslatableProperties {
 }
 
 /**
@@ -100,19 +108,19 @@ export class SCCourseOfStudiesMeta extends SCThingMeta implements SCMetaTranslat
    */
   fieldTranslations = {
     de: {
-      ... SCAcademicDegreeMeta.getInstance().fieldTranslations.de,
+      ...SCAcademicDegreeMeta.getInstance().fieldTranslations.de,
     },
     en: {
-      ... SCAcademicDegreeMeta.getInstance().fieldTranslations.en,
+      ...SCAcademicDegreeMeta.getInstance().fieldTranslations.en,
     },
   };
 
   /**
    * Translations of values of fields
    */
-  fieldValueTranslations  = {
+  fieldValueTranslations = {
     de: {
-      ... SCAcademicDegreeMeta.getInstance().fieldValueTranslations.de,
+      ...SCAcademicDegreeMeta.getInstance().fieldValueTranslations.de,
       modes: {
         combination: 'Kombinationsstudiengang',
         dual: 'Dualer Studiengang',
@@ -122,7 +130,7 @@ export class SCCourseOfStudiesMeta extends SCThingMeta implements SCMetaTranslat
       type: 'Studiengang',
     },
     en: {
-      ... SCAcademicDegreeMeta.getInstance().fieldValueTranslations.en,
+      ...SCAcademicDegreeMeta.getInstance().fieldValueTranslations.en,
       academicDegree: 'Hochschulabschluss',
       department: 'Fachbereich',
       major: 'Studienfach',
@@ -136,13 +144,13 @@ export class SCCourseOfStudiesMeta extends SCThingMeta implements SCMetaTranslat
 /**
  * Types of (german) course of studies modes
  */
-export type SCCourseOfStudiesMode = 'combination' |
+export type SCCourseOfStudiesMode = 'combination'
-                                    'dual' |
+  | 'dual'
-                                    'double-degree' |
+  | 'double-degree'
-                                    'standard' ;
+  | 'standard' ;
 
 /**
  * Types of (german) course of studies time modes
  */
-export type SCCourseOfStudiesTimeMode = 'fulltime' |
+export type SCCourseOfStudiesTimeMode = 'fulltime'
-                                        'parttime' ;
+  | 'parttime' ;

src/core/things/DateSeries.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018, 2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -17,6 +17,7 @@ import {
   SCAcademicPriceGroup,
   SCThingThatCanBeOffered,
   SCThingThatCanBeOfferedTranslatableProperties,
+  SCThingThatCanBeOfferedWithoutReferences,
 } from '../base/ThingThatCanBeOffered';
 import {SCThingMeta, SCThingType} from '../Thing';
 import {SCMetaTranslations, SCTranslations} from '../types/i18n';
@@ -38,8 +39,7 @@ export interface SCSportCoursePriceGroup extends SCAcademicPriceGroup {
 /**
  * A date without references
  */
-export interface SCDateSeriesWithoutReferences
+export interface SCDateSeriesWithoutReferences extends SCThingThatCanBeOfferedWithoutReferences {
-  extends SCThingThatCanBeOffered<SCSportCoursePriceGroup> {
   /**
    * Dates of the date series that are initially planned to be held
    */
@@ -76,7 +76,9 @@ export interface SCDateSeriesWithoutReferences
  *
  * @validatable
  */
-export interface SCDateSeries extends SCDateSeriesWithoutReferences, SCThingInPlace {
+export interface SCDateSeries extends SCDateSeriesWithoutReferences,
+  SCThingInPlace,
+  SCThingThatCanBeOffered<SCSportCoursePriceGroup> {
   /**
    * Event to which the date series belongs
    */
@@ -108,26 +110,26 @@ export class SCDateSeriesMeta extends SCThingMeta implements SCMetaTranslations<
    */
   fieldTranslations = {
     de: {
-      ... SCThingInPlaceMeta.getInstance().fieldTranslations.de,
+      ...SCThingInPlaceMeta.getInstance().fieldTranslations.de,
     },
     en: {
-      ... SCThingInPlaceMeta.getInstance().fieldTranslations.en,
+      ...SCThingInPlaceMeta.getInstance().fieldTranslations.en,
     },
   };
 
   /**
    * Translations of values of fields
    */
-  fieldValueTranslations  = {
+  fieldValueTranslations = {
     de: {
-      ... SCThingInPlaceMeta.getInstance().fieldValueTranslations.de,
+      ...SCThingInPlaceMeta.getInstance().fieldValueTranslations.de,
       dates: 'Einzeltermine',
       duration: 'Dauer',
       frequency: 'Wiederholung',
       type: 'Wiederholungreihe',
     },
     en: {
-      ... SCThingInPlaceMeta.getInstance().fieldValueTranslations.en,
+      ...SCThingInPlaceMeta.getInstance().fieldValueTranslations.en,
       type: SCThingType.DateSeries,
     },
   };

src/core/things/Diff.ts

@@ -64,11 +64,6 @@ export interface SCDiff extends SCDiffWithoutReferences {
  * Meta information about a diff
  */
 export class SCDiffMeta extends SCThingMeta implements SCMetaTranslations<SCDiff> {
-  /**
-   * Set type definiton for singleton instance
-   */
-  protected static _instance: SCThingMeta;
-
   /**
    * Translations of fields
    */

src/core/things/Dish.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2019 StApps
+ * Copyright (C) 2018, 2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -16,6 +16,7 @@ import {
   SCAcademicPriceGroup,
   SCThingThatCanBeOffered,
   SCThingThatCanBeOfferedTranslatableProperties,
+  SCThingThatCanBeOfferedWithoutReferences,
 } from '../base/ThingThatCanBeOffered';
 import {
   SCThingWithCategoriesSpecificValues,
@@ -29,12 +30,8 @@ import {SCMetaTranslations, SCTranslations} from '../types/i18n';
 /**
  * A dish without references
  */
-export interface SCDishWithoutReferences
+export interface SCDishWithoutReferences extends SCThingThatCanBeOfferedWithoutReferences,
-  extends SCThingWithCategoriesWithoutReferences<
+  SCThingWithCategoriesWithoutReferences<SCDishCategories, SCThingWithCategoriesSpecificValues> {
-      SCDishCategories,
-      SCThingWithCategoriesSpecificValues
-    >,
-    SCThingThatCanBeOffered<SCAcademicPriceGroup> {
   /**
    * Additives of the dish
    */
@@ -71,7 +68,8 @@ export interface SCDishWithoutReferences
  *
  * @validatable
  */
-export interface SCDish extends SCDishWithoutReferences {
+export interface SCDish extends SCDishWithoutReferences,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup> {
   /**
    * Dishes ("Beilagen") that are served with the dish (if only certain supplement dishes can be taken with a dish)
    */
@@ -173,22 +171,22 @@ export class SCDishMeta extends SCThingMeta implements SCMetaTranslations<SCDish
    */
   fieldTranslations = {
     de: {
-      ... SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
-                SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
+        SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
     },
     en: {
-      ... SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
-                SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
+        SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
     },
   };
 
   /**
    * Translations of values of fields
    */
-  fieldValueTranslations  = {
+  fieldValueTranslations = {
     de: {
-      ... SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
-                SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
+        SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       categories: {
         appetizer: 'Vorspeise',
         dessert: 'Nachtisch',
@@ -200,8 +198,8 @@ export class SCDishMeta extends SCThingMeta implements SCMetaTranslations<SCDish
       type: 'Essen',
     },
     en: {
-      ... SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
-                SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
+        SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.Dish,
     },
   };

src/core/types/Map.ts

@@ -15,10 +15,10 @@
 
 /**
  * Capsulation for a map with a string as key with values of type `T`
- * 
+ *
  * !!! BEWARE !!!
  * Can't be refactored to a `Map<K, V>`, because it can't be serialized via JSON.stringify(map)
- * 
+ *
  * @typeparam T Can be any type.
  */
 export interface SCMap<T> {
@@ -27,3 +27,20 @@ export interface SCMap<T> {
    */
   [key: string]: T;
 }
+
+/**
+ * Restricted map with keys, limited to values of `U`, and corresponding values of type `T`
+ *
+ * !!! BEWARE !!!
+ * Can't be refactored to a `Map<K, V>`, because it can't be serialized via JSON.stringify(map)
+ * Also note, that this is a type not an interface
+ *
+ * @typeparam U Must be a type the `in` operator can be applied to and contains only strings or numbers
+ * @typeparam T Can be any type
+ */
+export type SCRestrictedMap<U extends string | number, T> = {
+  /**
+   * One value for each key
+   */
+  [key in U]: T
+};

src/core/types/config/Backend.ts

@@ -15,7 +15,7 @@
 import {SCThingType} from '../../Thing';
 import {SCSearchSortType} from '../sorts/Abstract';
 import {SCUuid} from '../UUID';
-import {SCMap} from './../Map';
+import {SCMap, SCRestrictedMap} from './../Map';
 import {SCMonitoringConfiguration} from './Monitoring';
 
 /**
@@ -72,7 +72,7 @@ export interface SCBackendConfigurationSortableField {
 
   /**
    * A list of SC types on which this field exists
-   * 
+   *
    * If no type is given it is assumed it exists on every type
    */
   onlyOnTypes?: SCThingType[];
@@ -84,10 +84,27 @@ export interface SCBackendConfigurationSortableField {
 
 }
 
+/**
+ * Possible context names to be used by the search request
+ */
+export type SCSearchContext =
+  | 'default'
+  | 'dining'
+  | 'place';
+
+/**
+ * A boosting configuration for one context
+ */
+export type SCBackendConfigurationSearchBoostingContext =
+  SCRestrictedMap<
+    SCSearchContext,
+    SCBackendConfigurationSearchBoostingType[]
+  >;
+
 /**
  * A boosting configuration for one SCType
  */
-export interface SCBackendConfigurationSearchBoosting {
+export interface SCBackendConfigurationSearchBoostingType {
 
   /**
    * The factor of which the scores matching this type should be multiplied by
@@ -98,7 +115,7 @@ export interface SCBackendConfigurationSearchBoosting {
    * Outer-Map:
    * Fields of this type that should be boosted if they match a given value
    * For nest fields you can use the `.` as a separator. For example `academicTerms.acronym`
-   * 
+   *
    * Inner-map:
    * Value of the field that should be boosted by the given number
    * For example `"SS 2019": 2`
@@ -143,7 +160,7 @@ export interface SCBackendInternalConfiguration {
    * The resulting scores of matching objects can be boosted (multiplied by a number) to change the order in the
    * set of results
    */
-  boostings: SCBackendConfigurationSearchBoosting[];
+  boostings: SCBackendConfigurationSearchBoostingContext;
 
   /**
    * Configuration of the database

test/resources/SearchRequest.1.json

@@ -2,6 +2,7 @@
   "errorNames": [],
   "instance": {
     "query": "*",
+    "context": "default",
     "filter": {
       "arguments": {
         "filters": [