CODEWITHSUNDEEP
formsperlperl-modulewww-mechanize
Zoya Khalid
Zoya Khalid

Reputation: 21

Perl www::mechanize

İ am very new to perl module www::mechanize and I want to functionalize snp id. For that I have to make a web crawler, but i am having difficulties . İ dont know how to use field names or how to assign values. I have to access this website: http://www.ncbi.nlm.nih.gov/projects/SNP/ .Please tell what are the fieldnames here. Thanks in advance. I mean to specify a field name here I have to put the snp id for search. I am not understanding what to do. Kindly anybody help.

   use WWW::Mechanize;
   use strict;
   use warnings;
   my $mech = WWW::Mechanize->new;

   my $snp = 'rs111';
   my $URL = "http://www.ncbi.nlm.nih.gov/projects/SNP/";

   $mech->get($URL);

   $mech->submit_form(
   form_number => '1',
   fields => {

   'ID' => $snp,
    },
    );
    print $mech->content();

Upvotes: 1

Views: 1642

Answers (3)

gangabass
gangabass

Reputation: 10666

Try this version (your form is named Search and field name you need is db):

$mech->submit_form(
    name => "Search",
    fields => {
        db => $snp,
    },
    button => "submit",
);

Upvotes: 0

gangabass
gangabass

Reputation: 10666

There are developer tools for each web browser: Dragonfly for the Opera (it's built-in and I use it most of the time), Firebug for the Firefox etc. I most of the such tools you need to right click on the element you need to look at and select something like "Inspect element with..."enter image description here

enter image description here

Upvotes: 0

ikegami
ikegami

Reputation: 386706

Use a tool such as the Web Developer add-on for Firefox.

The page has three forms.

  1. Id       Name     Method   Action
------   ------   ------   --------------------------------------------------
Search   Search   post     http://www.ncbi.nlm.nih.gov/coreutils/dispatch.cgi

Elements
========
Id       Name     Type     Value      Label   Size   Maximum   Length
------   ------   ------   --------   -----   ----   -------   ------
Search   db       select   13
term     term     text                for     24
Search   submit   submit   Go
Search   SITE     hidden   NcbiHome


  2. Id   Name    Method   Action
--   -----   ------   --------------------------------------------------
     frmGo   get      http://www.ncbi.nlm.nih.gov/entrez/query.fcgi

Elements
========
Id   Name       Type     Value     Label   Size   Maximum   Length
--   --------   ------   -------   -----   ----   -------   ------
     db         hidden   Books
     cmd        hidden   Search
     term       input                      12
     Submit     submit   Go
     doptcmdl   hidden   TOCView


  3. Id   Name       Method   Action
--   --------   ------   --------------------------------------------------
     searchID   post     getID.cgi

Elements
========
Id       Name         Type     Value          Label   Size   Maximum   Length
------   ----------   ------   ------------   -----   ----   -------   ------
         searchType   hidden   adhoc_search
sub_id   sub_id       input                   ID:
IDtype   Type         select   dbSNP_rs
         submit2      submit   Search
         reset        reset    Reset

Upvotes: 5

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