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| Input Behavior | Input | Output |
|---|---|---|
| creates a new word | "hello" | "hello" |
| creates a definition for selected word | "a greeting" | "Hello, Definition: A greeting" |
| Behavior | Path | HTTP Verb | App.java Example | Process |
|---|---|---|---|---|
| Home Page | / | GET | get("/", (request, response) -> Map<String, Object> model = new HashMap<String, Object>(); model.put("words", Word.all()); model.put("template", "templates/index.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User requests page. Server sends HTTP GET request. Spark matches request to "/" route. |
| Display word form | /word-form | GET | get("/word-form", (request, response) -> {Map<String, Object> model = new HashMap<String, Object>(); model.put("template", "templates/word-form.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User requests form to create new word. Server returns page with word form. Form action and method must match path/verb of route below. |
| Display definitions for selected word | /word/:id/definition | GET | get("/word/:id/definition", (request, response) -> {Map<String, Object> model = new HashMap<String, Object>(); Word word = Word.find(Integer.parseInt(request.params(":id"))); model.put("word", word); model.put("template", "templates/word-definitions.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User requests page. Server collects selected word, renders template. Velocity loops through definitions and displays them. |
| Display definition form | /word/:id/definition/new | GET | get("/word/:id/definition/new", (request, response) -> {Map<String, Object> model = new HashMap<String, Object>(); Word word = Word.find(Integer.parseInt(request.params(":id"))); model.put("word", word); model.put("template", "templates/definition-form.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User requests form to create new definition for selected word. Server returns page with definition form. Form action and method must match path/verb of route below. |
| Creates new word with definition when word form is submitted | / | POST | post("/", (request, response) -> {Map<String, Object> model = new HashMap<String, Object>(); Definition newDefinition = new Definition(request.queryParams("description")); Word newWord = new Word(request.queryParams("name")); newWord.addDefinition(newDefinition); model.put("words", Word.all()); model.put("template", "templates/index.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User submits word form. Server grabs attributes from form. Uses them to create new word. Server renders the home page with all words listed. |
| Creates new definition for word when definition form is submitted | /word/:id/definition/new | POST | post("/word/:id/definition/new", (request, response) -> {Map<String, Object> model = new HashMap<String, Object>(); Word word = Word.find(Integer.parseInt(request.params(":id"))); Definition newDefinition = new Definition(request.queryParams("description")); word.addDefinition(newDefinition); model.put("word", word); model.put("template", "templates/word-definitions.vtl"); return new ModelAndView(model, layout);}, new VelocityTemplateEngine()); | User submits description form. Server grabs attributes from form. Uses them to create new description for selected word. Server renders page with all definitions of selected word. |
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If you run into any problems, contact me at beth97209@gmail.com
Copyright (c) 2017 Beth Hansen.
Licensed under the MIT license