How to program routes to a model DB without a view in ruby on rails? -


i have website translates dna codons mrna codons. created immutable immutable 64 row db model 3 columns sqlite, preceeded seed. basically, want user input string text-area , break string 3 character string fragments "ttcttaatt..." --> (dnacodon) [ttc][tta][att] --> match database returning matched results (mrnacodon ) [uuc] [uua] [auu]. created search form on 1 of static pages

i running trouble routes in search form. want query search , return either same page, or different page- whichever method easier , makes more sense. created db without scaffolding because don't want accessible users alterations. ended creating scaffolding folder dunno why it's not connecting database. page refreshes not return db query

app/controllers/aa_data_bases_controller.rb

class aadatabases < applicationcontroller    def index       @aa_data_bases = aadatabases.new    end     def create   if params[:search]       @aa_data_bases = aadatabases.search(params[:search]).order("created_at       desc")   else       @aa_data_bases = aadatabases.all.order('created_at desc')   end end

end

views/static_pages/sequence.html.erb it's in static page problem route is, in form_tag("/sequence"... when run rails server pages loads, can input page refreshes , nothing happens

<% provide(:title, 'sequence') %> <h1>sequence</h1>  <body>     <div class="content-container-1" id="div3">        <div class="container">           <div class="row text-center">             <h3>add sequence here</h3>            </div>             <div class="row text-center pt mb">              <div class="col-md-6 col-md-offset-3">                 <br>                <%= form_tag("/sequence", :method => "aadatabases#index", id: "search-form") %>               <%= text_area_tag :search, params[:search], placeholder: "translate dna codons...",                    :size =>"75x10", class: "form-control"%>                <% @aa_data_bases.each |match| %>               <li><%= match.mrnacodon %></li>               <% end %>              </div>         </div>     </div> </div>

config/routes.rb

rails.application.routes.draw   root 'static_pages#home'    match '/about', to: 'static_pages#about', via: 'get'    match '/contact', to: 'static_pages#contact', via: 'get'    match '/help', to: 'static_pages#help', via: 'get'    match '/seqresults', to: 'static_pages#seqresults', via: 'get'    match '/sequence', to: 'sequence_page#sequence', via: 'get'    'aa_data_bases/index'    'aa_data_bases/create' end

model/aa_data_bases.rb

class aadatabases < activerecord::base  def self.search(query)     where("%#{query}%")    end end

db

class createaadatabases < activerecord::migration   def change     create_table :aa_data_bases |t|       t.string :aafullname       t.string :dnacodon       t.string :mrnacodon        t.timestamps     end   end end

my seeding file, there 64 entries this

aadatabases.create(aafullname: "phenylalanine", dnacodon:"ttt", mrnacodon:"uuu") aadatabases.create(aafullname: "phenylalanine", dnacodon:"ttc", mrnacodon:"uuc") aadatabases.create(aafullname: "leucine", dnacodon:"tta", mrnacodon:"uua") aadatabases.create(aafullname: "leucine", dnacodon:"ttg", mrnacodon:"uug") aadatabases.create(aafullname: "leucine", dnacodon:"ctt", mrnacodon:"cuu") aadatabases.create(aafullname: "leucine", dnacodon:"ctc", mrnacodon:"cuc") aadatabases.create(aafullname: "leucine", dnacodon:"cta", mrnacodon:"cua")

controller static pages app/controllers/static_pages_controller.rb

class staticpagescontroller < applicationcontroller   def home   end    def   end    def   end    def contact   end    def seqresults   end  end

app/controllers/sequence_page_controller.rb

class sequencepagecontroller < applicationcontroller     def sequence     end  end

i see few problems here:

  1. the form in sequence view posts sequence url get, has empty action. renders sequence view. behavior you're seeing, , should expect based on how written.

  2. i don't see view here render contents of @aa_data_bases. view have built consume controller variable , display resulting set of codons? such view exist already? if not, need create one.

some quick suggestions:

  1. your results not static, i'd move sequence page out of static pages controller. going want integrated search/results page, users can sequences of searches. start shifting '/sequence' aadatabases#index method. add basic index method sets value of @aa_data_bases empty array. optionally can configure handle search query parameter.

  2. move current index method on aadatabasescontroller create method, can respond post requests

  3. change sequence view you've created display result set based on @aa_data_bases if isn't empty, , update form use post.

  4. make sure routes include both index , create routes.

these changes should functional set of pages.


Comments

Post a Comment

Popular posts from this blog

python - Installing PyDev in eclipse is failed -

unable read repository @ http://pydev.sf.net/updates/content.xml. sun.security.validator.validatorexception: pkix path building failed: sun.security.provider.certpath.suncertpathbuilderexception: unable find valid certification path requested target i installing pydev in eclipse using python, doesn't install successfully. gives above error. happened? how solve error? i had error when trying install on laptop behind corporate firewall. couldn't tell setup of firewall, not sure of root cause. i got passed error installing pydev eclipse when out behind firewall. another way got around have eclipse on non-firewalled machine, install pydev eclipse, , copy whole eclipse directory non-firewalled machine firewalled machine. there better way, , way fix properly, didn't have time work out firewall doing. this on windows 7 machine (yeah know) not work *nix versions installed through package manager yum or apt.
Read more

PHP OOP-based login system -

lets building oop-based user authentication system, , incorporate following principles: direct injection, inheritance, encapsulation, polymorphism , single responsibility principle. my background in programming has relied on procedural programming, , thus, finding difficult put these practices correct use. assume have these classes: class config { public function set($key, $value); public function get($key, $default = null); } class user { public function __construct(pdo $dbh, $id = null); public function setprofile(profile $profile); } class auth { public function __construct(config $config); public function login($username, $password, $keeploggedin = true); public function isloggedin(); public function getloggedinuser(); public function logout(); public function register(array $data); } class session { public function start($sessionname = null); public function write($key, $value); public function read($key, $default =...
Read more

c# - Nested Internal Class with Readonly Hashtable throws Null ref exception.. on assignment -

in internal game class , have both a) defined nested internal gamertags class , b) defined gamertags[] _array variable. in internal gamertags class (the nested class, simplicity left out) have readonly hashtable . after initialization, still null ref exception when try assign value. i'm not changing pointer value only , need add initialization hastable? internal class gamertags { private readonly hashtable _privatereadonlyhashtable; private string _json; private string _hash; internal idictionary privatereadonlyhashtable { { return this._privatereadonlyhashtable; } } internal string hash { { this.ensurehash(); return this._hash; } } internal object this[string key] { { return this._privatereadonlyhashtable[k...
Read more