I want build a website that have two "table" to display two lists of data that stored in XML.
Category and items(think todo list. one category has more then one item)
I'm not sure how to display the list of data. What kind specific technique should I use? Can I only use HTML and CSS to achieve this(My friend said I have to use javascript).
U need to use AJAX for that purpose.
AJAX stands for Asynchronous Javascript XML...
This will help you to get your XML data loaded on Web Pages
Related
I know that openrefine is not a perfect tool for web scraping but looking for some helps from the first step.
I cannot collect the full html codes from openrefine when I add column by fetching url (https://profiles.health.ny.gov/hospital/view/103094). They do not incorporate any codes under accordion such as services, bed types, and etc.
Any idea to get the full codes by fetching in openrefine?
I am trying to collect information under administrative, whose Xpath is "//div[4]/div/ul/li" ("div#AdministrativeBox.in.collapse")
This website loads its content dynamically using Javascript. The information that interests you is not stored in the source code of the page, so Open Refine cannot extract it.
However, there is a workaround. If you transform your URLs with the GREL formula value.replace('view', 'tab_overview'), you will get scrapable pages like this one.
Note that OpenRefine does not use Xpath, but JSOUP selectors. To get the elements of the "Administrative" block, you can use this GREL formula.
forEach(value.parseHtml().select('#AdministrativeBox li'), e, e.htmlText()).join(',')
Result:
I am using html-pdf for pdf creation on my project. i can generate all the details into the pdf. but the thing is i can not be able to create List of items in array in html(which will be used for pdf conversion).
Since i cannot use javascript to get the array of items, i am unable to get it. if there is a tweak to use javascript in html template,please post it here. Since the array of items is known, i can use it easily.
Suppose if the array length is 3 . i can use like array[0].name ,array[1].name, array[2].name but here i don't know the length of the array which consists of how many items. Can anyone please help me here to generate the table of items which is generating dynamically.
You cannot use Javascript in template, but you can use Javascript on it.
The idea is to make a parser which will :
read your template
replace a keywork (for example : <customTable arrayName="myCustomArray" fields="['name']" />) with a generated HTML array in Node.js.
use this template with html-parser.
I write an example of parser in VanillaJS here : https://jsfiddle.net/rbuuzcre/5/
I am writing a program for managing an inventory. It serves up html based on records from a postresql database, or writes to the database using html forms.
Different functions (adding records, searching, etc.) are accessible using <a></a> tags or form submits, which in turn call functions using http.HandleFunc(), functions then generate queries, parse results and render these to html templates.
The search function renders query results to an html table. To keep the search results page ideally usable and uncluttered I intent to provide only the most relevant information there. However, since there are many more details stored in the database, I need a way to access that information too. In order to do that I wanted to have each table row clickable, displaying the details of the selected record in a status area at the bottom or side of the page for instance.
I could try to follow the pattern that works for running the other functions, that is use <a></a> tags and http.HandleFunc() to render new content but this isn't exactly what I want for a couple of reasons.
First: There should be no need to navigate away from the search result page to view the additional details; there are not so many details that a single record's full data should not be able to be rendered on the same page as the search results.
Second: I want the whole row clickable, not merely the text within a table cell, which is what the <a></a> tags get me.
Using the id returned from the database in an attribute, as in <div id="search-result-row-id-{{.ID}}"></div> I am able to work with individual records but I have yet to find a way to then capture a click in Go.
Before I run off and write this in javascript, does anyone know of a way to do this strictly in Go? I am not particularly adverse to using the tried-and-true js methods but I am curious to see if it could be done without it.
does anyone know of a way to do this strictly in Go?
As others have indicated in the comments, no, Go cannot capture the event in the browser.
For that you will need to use some JavaScript to send to the server (where Go runs) the web request for more information.
You could also push all the required information to the browser when you first serve the page and hide/show it based on CSS/JavaScript event but again, that's just regular web development and nothing to do with Go.
How am I able to get specific data from a website? If it helps then the data I need is labeled under a unique html class.
Get a web page.
Make it a DOM structure.
Traverse it with xPath: //*[#class='target_class']
Output results.
If you share a language that you use, I may give you some posts with examples. For php read here.
You can use Beautifulsoup to do what you want in python.You can scrape data from a specific html class.See here http://www.crummy.com/software/BeautifulSoup/bs4/doc/
I'm using yql to return a list of links from specific webpages. So far so good, it returns all the links that I pretend, however I don't know how to translate that info into my webpage.
Here's what I'm trying to do:
YQL returns a list of links in the
results
I want those links to appear in my
webpage, inside a table, inside divs,
etc... like if i wrote them there.
I have been trying to find a way to do this but I don't know much of js and json so I'm here trying to achieve some answer from those of you that might know a way.
There are a couple of ways to do this, depending on which approach you want to take.
First, and simplest, is server-side generation. This is what would result, for example, if a user hits a Submit button on a search form to send you his query, your script receives the query and generates the page, then sends that page to the user. In this case, your question is largely trivial. In pseudocode:
ASSIGN the list of results to list L
FOR EACH ITEM r IN L
PRINT a string containing an HTML template, substituting the value
r where appropriate
It's trivial enough that I suspect you want to do this via DOM manipulation. This is what requires JavaScript: you get the query, send the request without refreshing the page, and want to add the results to the DOM. If you're receiving the list of results, you're already most of the way there. Using jQuery, you would do the same thing as in the pseudocode above, except that where it has the PRINT statement you would have:
$(".SearchResults").append("<li>" + r + "</li>");
I highly recommend reading through the jQuery tutorial. It's not as hard as you think.