Not able to run ruby on rails on ubuntu

Vote count:

0

I have installed ruby on rails using the below tutorial http://ift.tt/1wFwCwc .I completed all the steps mentioned as per the tutorial and I could even create a rails app and run it using rails server .

When I used rails server , it showed me

ubuntu@ip-192-30-0-97:~/myapp$ rails server
=> Booting WEBrick
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
[2015-02-01 09:45:51] INFO  WEBrick 1.3.1
[2015-02-01 09:45:51] INFO  ruby 2.1.5 (2014-11-13) [x86_64-linux]
[2015-02-01 09:45:51] INFO  WEBrick::HTTPServer#start: pid=11899 port=3000

But when I navigate to my IP (Elastic IP pointing to my instance running Ubuntu 14.04),Im just getting a page "Website not available" .I could get this working on my local computer,when I navigated to the localhost IP the rails default page opened up,however here Im not able to get this working.

I am new to RoR and ubuntu,please help on this.

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asked 58 secs ago

Saritha Nair

3

Not able to run ruby on rails on ubuntu

Android Textview unable to display special characters?

Vote count:

0

I need to display data from sqlite with some special characters on it like for example,

myStr = "Testing123ʳ" (actual value is loaded from sqlite)

which contains a modifier letter small ʳ (U+02B3)

Refer to character info here http://ift.tt/15YEHGd

I have tried 1. myTextv.setText(Html.fromHtml(myStr)) 2. myTextv.setText("\u02B3)") 3. myTextv.setText(Html.fromHtml("ʳ"))

All doesn't work...

asked 1 min ago

Eddi

41

Android Textview unable to display special characters?

How to read barcode from PDF file and export it + page number to table

Vote count:

0

I want to make code or to run program that can read the barcode from PDF file and export them i a table showing barcode value & page number.

asked 45 secs ago

Ahmed

1

How to read barcode from PDF file and export it + page number to table

Terminal does not work in the WebStorm 9

Vote count:

0

I can not type in the terminal http://ift.tt/1uOZn9J What is the problem? Prompt please.

asked 1 min ago

Maf10so

1

Terminal does not work in the WebStorm 9

Simple Jquery Validation and sending valid DATA to other jsp

Vote count:

0

1. 
   

   I want to Validate this thing and Send this value to other JSP page ..

   
   


2. 
   

   I am new to this concept ..I need you to help by " CORRECTING this Form " and suggest me after CORRECTION .. how can i able to send value to other page ...

   
   

3.here :- only one field should Enter .. incase of two fileds or 2_fields.NULL() show a warning ..[ i did with a some thing wrong

<script>
    $(document).ready(function(event) {
        <!-- Real-time Validation -->

                 var is_name=$('#contact_name').val();

                  var is_number=$('#contact_number').val();

                  $("#contact_submit button").click(function() {
                        if(($('#contact_number').val().length !=0) && ($('#contact_name').val().length !=0)) {

                                $("#nosearch").hide();
                                $("#search").hide();
                                $("#wrong").show(); 
                        }

                        else if (($('#contact_number').val().length ==0) && ($('#contact_number').val().length ==0) ) {

                                $("#nosearch").show();
                                $("#search").hide();
                                $("#wrong").hide();
                        }
                     else {
                            $("#nosearch").hide();
                            $("#search").show();
                            $("#wrong").hide();

                           I know some action type of thing should happen here .. i don't know what it would be .. help me ...      
                     }
              });
        $("#nosearch").show();
        $("#search").hide();
        $("#wrong").hide();
    });
</script>



    <form id="contact" method="post" action=" **i don't know how to send a value to other page** ">
        <div>
            <label for="contact_name">Number:</label>
            <input type="text" id="contact_number" size="15" name="number"></input>
        </div>

        <div>
            <label for="contact_email">Name:</label>
            <input type="text" id="contact_name" size="25" name="name"></input> 
        </div>                                      

        <div id="contact_submit">               
            <button type="submit">Submit</button>
        </div>
         <h4 id="wrong"> Only use one coloum ...<h4>
        <h4 id="nosearch"> Enter any  Information <h4>
        <h4 id="search"> Result about :- .... <h4>
    </form>

My fiddle link :-

asked 2 mins ago

hari

18

Simple Jquery Validation and sending valid DATA to other jsp

MySQL Get score of each user in each category

Vote count:

0

basically i have the following tables:

users (id)

question_categories(id)

questions(id, category)

answers(id, user, question, score)

My problem is to get the total score of each user in each category in order to filter them based on the score in each category.

I expect a result table like (user, score_cat_1, score_cat_2, ...). I tried this option by building the table from PHP to add each category score column, but there is a join subquery I have to run on each category column I want to add. Something like

SELECT u.id, SUM(cat1.score) AS score_cat_1, ...
FROM users u
LEFT JOIN (
     SELECT score, category, user
     FROM answers a
     JOIN questions q ON a.question=q.id AND q.category=1
) AS cat1 ON u.id=cat1.user
...

So I fear a performance issue with the size of that table and the number of categories. Is there a better approach?

Thanks

asked 52 secs ago

atoo

16

MySQL Get score of each user in each category

regex to match an exam result

Vote count:

0

here is the key structure

first part + '-' + second part

first part is from a list of indicators

'BIL|UBG|LEU|ERY|pH|KET|SG|PRO|NIT|GLU'

second part is an int + '+/-' or a 'pos/neg' here is bottom line of what I got

(BIL|UBG|LEU|ERY|pH|KET|SG|PRO|NIT)-[0-9][+,-]

like these

NIT-3+
GLU-pos
pH-neg

asked 17 secs ago

Ohad Partuck

31

regex to match an exam result