The Ring programming language version 1.5.2 book - Part 42 of 181

Ring Documentation, Release 1.5.2
47.17 Generating Pages using Objects
Instead of using functions/methods to generate HTML pages, we can use an object for each element in the page.
This choice means more beautiful code but slower.
The fastest method is to print HTML code directly, then using functions then using templates then using objects
(slower).
#!c:ringbinring.exe -cgi
Load "weblib.ring"
Import System.Web
Func Main
WebPage()
{
Title = "Using objects to create the Web Page content"
h1 { text("welcome") }
link
{
Title = "Google"
Link = "http://www.google.com"
}
div
{
id = "div1"
style = stylegradient(30) + stylesize("50%","50%")
text("Outer Div")
div
{
id = "div2"
color = "white"
backgroundcolor = "green"
width = "50%"
height = "50%"
marginleft = "5%"
margintop = "5%"
text("Inner Div")
}
}
div
{
id = "div3"
color = "black"
backgroundcolor = "silver"
width = "100%"
height = "100%"
text("Form")
form
{
method = "POST"
Action = "helloworld.ring"
Table
{
style = stylewidth("100%") + stylegradient(24)
TR
{
TD { WIDTH="10%" text("Name : " ) }
47.17. Generating Pages using Objects 385

TD { Input { type = "text" } }
}
TR
{
TD { WIDTH="10%" text("Email : " ) }
TD { Input { type = "text" } }
}
TR
{
TD { WIDTH="10%" text("Password : " ) }
TD { Input { type = "password" } }
}
TR
{
TD { WIDTH="10%" text("Notes") }
TD { TextArea { width="100%" rows = 10 cols = 10
text("type text here...") } }
}
TR
{
TD { WIDTH="10%" text("Gender") }
TD {
select
{
width = "100%"
option { text("Male") }
option { text("Female") }
}
}
}
TR
{
TD { WIDTH="10%" text("Role") }
TD
{
select
{
multiple = "multiple"
width = "100%"
option { text("student") }
option { text("admin") }
}
}
}
}
Input { type = "submit" value = "send" }
Image { src="upload/profile1.jpg" alt="profile"}
Input { type = "checkbox" value = "Old Member"} text("old member")
Input { type = "range" min=1 max=100}
Input { type = "number" min=1 max=100}
Input { type = "radio" color="black" name="one"
value = "one"} text("one")
}
}
div
{
color = "white"

backgroundcolor = "blue"
width = "100%"
UL
{
LI { TEXT("ONE") }
LI { TEXT("TWO") }
LI { TEXT("THREE") }
}
}
div
{
audio
{
src = "horse.ogg"
type = "audio/ogg"
}
video
{
width = 320
height = 240
src = "movie.mp4"
type = "video/mp4"
}
Input
{
type = "color"
value = "#ff0000"
onchange = "clickColor(0, -1, -1, 5)"
}
}
}
Screen Shot:

47.18 HtmlPage Class
Using this class we can create HTML documents without printing the output to the standard output
So instead of using the WebLib in Web Applications only
We can use it in Console/GUI/Mobile Applications too
Example:
load "stdlib.ring"
load "weblib.ring"
import System.Web
47.18. HtmlPage Class 389

func main
mypage = new HtmlPage {
h1 { text("Customers Report") }
Table
{
TR
{
TD { WIDTH="10%" text("Customers Count : " ) }
TD { text (100) }
}
}
Table
{
TR
{
TD { text("Name " ) }
TD { text("Age" ) }
TD { text("Country" ) }
TD { text("Job" ) }
TD { text("Company" ) }
}
for x = 1 to 100
TR
{
TD { text("Test" ) }
TD { text("30" ) }
TD { text("Egypt" ) }
TD { text("Sales" ) }
TD { text("Future" ) }
}
next
}
}
write("report.html",mypage.output())
47.19 Using Bootstrap Library using Functions
The next example uses the Bootstrap JavaScript Library when generating the HTML page.
Load "weblib.ring"
Import System.Web
Func Main
new BootstrapPage {
divstart([ :class = "container" ])
divstart([ :class = "jumbotron" ])
h1("Bootstrap Page")
divend()
47.19. Using Bootstrap Library using Functions 390

divstart([ :class = :row ])
divstart([ :class = "col-sm-4" ])
h3("Welcome to the Ring programming language")
p([ :text = "Using a scripting language is very fun!" ])
divend()
p([ :text = "using a scripting language is very fun!" ])
divend()
p([ :text = "using a scripting language is very fun!" ])
divend()
divend()
divend()
}
Screen Shot:
47.20 Using Bootstrap Library using Objects
The next example uses the Bootstrap JavaScript Library when generating the HTML page.
Instead of using functions to generate the HTML elements, we will use objects.
Load "weblib.ring"
Import System.Web
Func Main
47.20. Using Bootstrap Library using Objects 391

BootStrapWebPage()
{
div
{
classname = :container
div
{
classname = :jumbotron
H1 { text("Bootstrap Page") }
}
div
{
classname = :row
for x = 1 to 3
div
{
classname = "col-sm-4"
H3 { html("Welcome to the Ring programming language") }
P { html("Using a scripting language is very fun!") }
}
next
}
div
{
classname = :row
div
{
Button
{
classname = "btn btn-info btn-lg"
datatoggle= "modal"
datatarget = "#myModal"
text("Open Large Modal")
}
}
div
{
Button { classname = "btn btn-default btn-lg" text("default") }
Button { classname = "btn btn-primary btn-md" text("primary") }
Button { classname = "btn btn-sucess btn-sm" text("sucess") }
Button { classname = "btn btn-info btn-xs" text("info") }
Button { classname = "btn btn-warning" text("warning") }
Button { classname = "btn btn-danger" text("danger") }
Button { classname = "btn btn-link" text("link") }
}
div
{
Button { classname = "btn btn-default btn-block" text("default") }
Button { classname = "btn btn-primary btn-block" text("primary") }
Button { classname = "btn btn-sucess btn-block" text("sucess") }
Button { classname = "btn btn-info btn-block" text("info") }
Button { classname = "btn btn-warning btn-block" text("warning") }
Button { classname = "btn btn-danger btn-block" text("danger") }
Button { classname = "btn btn-link btn-block" text("link") }
}

div
{
div { classname = "btn-group"
button { classname="btn btn-primary" text("one") }
button { classname="btn btn-primary" text("two") }
button { classname="btn btn-primary" text("three") }
}
}
div
{
div { classname = "btn-group btn-group-lg"
}
}
div
{
div {
classname = "btn-group-vertical btn-group-lg"
}
}
}
div { classname="modal fade" id="myModal" role="dialog"
div { classname = "modal-dialog modal-lg"
div { classname="modal-content"
div { classname="modal-header"
button { classname="close" datadismiss="modal"
html("&times")
}
h4 { classname="modal-title"
text("Modal Header")
}
}
div { classname = "modal-body"
p { text("This is a large model.") }
}
div { classname="modal-footer"
button { classname = "btn btn-default" datadismiss="modal"
text("close")
}
}
}
}
}
}
}
Screen Shot:

47.21 CRUD Example using MVC
The next example uses the weblib.ring & datalib.ring.
The datalib.ring contains classes for creating database applications using MVC pattern.
In this example we create an object from the SalaryController class then call the Routing method.
We deﬁne the website variable to contains the basic url of the page.
When we create the SalaryModel class from the ModelBase class, the salary table will be opened and the columns
data will be deﬁned as attributes in the model class.
The SalaryView class create an object from the SalaryLanguageEnglish class to be used for translation.
The method AddFuncScript is used to call the form for adding/modifying record data.
The method FormViewContent is used to determine the controls in the form when we add or modify a record.
Load "weblib.ring"
Load "datalib.ring"
Import System.Web
website = "ex24.ring"
New SalaryController { Routing() }
47.21. CRUD Example using MVC 394

The Ring programming language version 1.5.2 book - Part 42 of 181

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The Ring programming language version 1.5.2 book - Part 42 of 181