The Ring programming language version 1.7 book - Part 44 of 196
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The document provides documentation on using Ring for web development, including instructions on setting up a web server to run Ring applications, and examples of writing simple "Hello World" programs using Ring's built-in web library and features like handling HTTP GET and POST requests, uploading files, and using templates. It also includes screenshots of example programs.
![Ring Documentation, Release 1.7
Tip: the difference between ex. 1 and ex. 2 is using WebPage() function to return the page object instead of creating
the object using new statement.
49.4 Web Library Features
The next features are provided by the Web library to quickly create web applications.
• Generate HTML pages using functions
• Generate HTML pages using objects
• HTTP Get
• HTTP Post
• Files Upload
• URL Encode
• Templates
• CRUD MVC Sample
• Users Logic & Registration Sample
49.5 HTTP Get Example
The Page User Interface
#!ring -cgi
Load "weblib.ring"
Import System.Web
New Page
{
Title = "Test HTTP Get"
divstart([ :style = StyleSizeFull() ] )
boxstart()
text( "Test HTTP GET" )
newline()
boxend()
divstart([ :style = Styledivcenter("600px","550px") +
StyleGradient(21) ])
divstart([:style = stylefloatleft() + stylesize("100px","100%") +
stylecolor("black") + stylegradient(58)])
formstart("ex5.ring")
tablestart([ :style = stylesize("65%","90%") +
stylemarginleft("35%") +
stylemargintop("30%") ])
rowstart([])
cellstart([])
text ( "Name : " )
cellend()
cellstart([])
cTextboxStyle = StyleMarginLeft("5%") +
StyleWidth("250px") +
StyleColor("black") +
49.4. Web Library Features 403](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-2-320.jpg)
![Ring Documentation, Release 1.7
StyleBackColor("white")
textbox([ :name = "Name", :style = cTextboxStyle ] )
cellend()
rowend()
rowstart([])
cellstart([])
text ( "Address : " )
cellend()
cellstart([])
textbox([ :name = "Address", :style = cTextboxStyle] )
cellend()
rowend()
rowstart([])
cellstart([])
text ( "Phone : " )
cellend()
cellstart([])
textbox([ :name = "Phone", :style = cTextboxStyle ])
cellend()
rowend()
rowstart([])
cellstart([])
text ( "Age : " )
cellend()
cellstart([])
textbox([ :name = "Age", :style = cTextboxStyle ])
cellend()
rowend()
rowstart([])
cellstart([])
text ( "City: " )
cellend()
cellstart([])
listbox([ :name = "City", :items = ["Cairo","Riyadh","Jeddah"],
:style = stylemarginleft("5%") + stylewidth("400px") ] )
cellend()
rowend()
rowstart([])
cellstart([])
text ( "Country : " )
cellend()
cellstart([])
combobox([ :name = "Country",
:items = ["Egypt","Saudi Arabia","USA"],
:style = stylemarginleft("5%") +
stylewidth("400px")+
stylecolor("black")+
stylebackcolor("white")+
stylefontsize("14px") ])
cellend()
rowend()
rowstart([])
cellstart([])
text ( "Note : " )
cellend()
cellstart([])
editbox([ :name = "Notes",
:style = stylemarginleft("5%") +
49.5. HTTP Get Example 404](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-3-320.jpg)
![Ring Documentation, Release 1.7
stylesize("400px","100px")+
stylecolor("black")+
stylebackcolor("white") ,
:value = "write comments here..." ] )
cellend()
rowend()
rowstart([])
cellstart([])
cellend()
cellstart([])
submit([ :value = "Send" , :Style = stylemarginleft("5%") ])
cellend()
rowend()
tableend()
formend()
divend()
divend()
divend()
}
Screen Shot:
49.5. HTTP Get Example 405](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-4-320.jpg)
![Ring Documentation, Release 1.7
The Response
#!ring -cgi
Load "weblib.ring"
Import System.Web
New Page
{
divstart([ :style = styledivcenter("800px","500px") ])
boxstart()
text ( "HTTP GET Response" ) newline()
boxend()
divstart([ :style = stylefloatleft()+stylewidth("10%")+
49.5. HTTP Get Example 406](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-5-320.jpg)
![Ring Documentation, Release 1.7
stylecolor("black")+stylegradient(58) ])
newline()
text ( "Name : " )
newline() newline()
text ( "Address : " )
newline() newline()
text ( "Phone : " )
newline() newline()
text ( "Age : " )
newline() newline()
text ( "City : " )
newline() newline()
text ( "Country : " )
newline() newline()
text ( "Note : " )
newline() newline()
divend()
divstart([ :style = stylefloatleft()+stylewidth("90%")+
stylecolor("black")+stylegradient(47) ])
divstart([ :style = stylefloatleft() + stylewidth("1%") ])
newline()
divend()
divstart([ :style = stylefloatleft() + stylewidth("95%") ])
newline()
text ( aPageVars["Name"] )
newline() newline()
text ( aPageVars["Address"] )
newline() newline()
text ( aPageVars["Phone"] )
newline() newline()
text ( aPageVars["Age"] )
newline() newline()
text ( aPageVars["City"] )
newline() newline()
text (aPageVars["Country"] )
newline() newline()
text ( aPageVars["Notes"] )
newline() newline()
divend()
divend()
divend()
}
Screen Shot:
49.5. HTTP Get Example 407](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-6-320.jpg)
![Ring Documentation, Release 1.7
49.6 HTTP POST Example
The Page User Interface
#!ring -cgi
Load "weblib.ring"
Import System.Web
New Page
{
boxstart()
text( "Post Test")
newline()
boxend()
divstart([ :style=StyleFloatLeft()+StyleWidth("100px") ])
newline()
text( "Number1 : " ) newline() newline()
text( "Number2 : " ) newline() newline()
divend()
formpost("ex7.ring")
divstart([ :style = styleFloatLeft()+StyleWidth("200px") ])
newline()
textbox([ :name = "Number1" ]) newline() newline()
textbox([ :name = "Number2" ]) newline() newline()
submit([ :value = "Send" ] )
divend()
formend()
}
Screen Shot:
49.6. HTTP POST Example 408](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-7-320.jpg)
![Ring Documentation, Release 1.7
The Response
#!ring -cgi
Load "weblib.ring"
Import System.Web
New Page
{
boxstart()
text( "Post Result" )
newline()
boxend()
divstart([ :style = styleFloatLeft()+styleWidth("200px") ])
newline()
text( "Number1 : " + aPageVars["Number1"] )
newline() newline()
text( "Number2 : " + aPageVars["Number2"] )
newline() newline()
text( "Sum : " + (0 + aPageVars["Number1"] + aPageVars["Number2"] ) )
newline()
divend()
}
Screen Shot:
49.6. HTTP POST Example 409](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-8-320.jpg)
![Ring Documentation, Release 1.7
49.7 Upload Files
The Page User Interface
#!ring -cgi
Load "weblib.ring"
Import System.Web
New page
{
boxstart()
text( "Upload File" )
newline()
boxend()
for x = 1 to 3 newline() next
formupload("ex9.ring")
text( "Customer Name : " )
textbox([ :name = "custname" ])
newline() newline()
divstart([ :style = styleFloatLeft() + styleWidth("90px") ])
uploadfile("file") newline() newline()
uploadfile("file2") newline() newline()
submit([ :value = "Send" ])
divend()
formend()
}
Screen Shot:
49.7. Upload Files 410](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-9-320.jpg)
![Ring Documentation, Release 1.7
The Response
#!ring -cgi
Load "weblib.ring"
Import System.Web
cUploadPath = "C:/Apache2.2/htdocs/ringapp/upload/"
cUploadFolder = "/ringapp/upload/"
New page
{
boxstart()
text( "Upload Result" )
newline()
boxend()
newline()
divstart([ :style= styleFloatLeft() + styleWidth("100px") ])
text( "Name : " + aPageVars["custname"] )
newline()
divend()
if aPageVars["file"] != char(13)
getuploadedfile(self,"file")
ok
if aPageVars["file2"] != char(13)
getuploadedfile(self,"file2")
ok
}
Func getuploadedfile oObj,cFile
# here we use object.property
# instead of object { } to avoid executing braceend method
cFileName = cUploadPath + oObj.getfilename(aPageVars,cFile)
49.7. Upload Files 411](https://image.slidesharecdn.com/431pdfsamfayedringdoc1-180710035453/85/The-Ring-programming-language-version-1-7-book-Part-44-of-196-10-320.jpg)
The Ring programming language version 1.7 book - Part 44 of 196
- 1. Ring Documentation, Release 1.7 Run/Start the server Create your web applications in a directory supported by the web server. Example: Apache2.2htdocsmywebapplicationfolder Example: xampphtdocsmywebapplicationfolder Inside the source code file (*.ring), Add this line #!ring -cgi Note: Change the previous line based on the path to ring.exe in your machine 49.2 Ring CGI Hello World Program The next program is the Hello World program #!ring -cgi See "content-type : text/html" +nl+nl+ "Hello World!" + nl 49.3 Hello World Program using the Web Library We can use the web library to write CGI Web applications quickly Example (1) : #!ring -cgi Load "weblib.ring" Import System.Web New Page { Text("Hello World!") } Example (2) : #!ring -cgi Load "weblib.ring" Import System.Web WebPage() { Text("Hello World!") } 49.2. Ring CGI Hello World Program 402
- 2. Ring Documentation, Release 1.7 Tip: the difference between ex. 1 and ex. 2 is using WebPage() function to return the page object instead of creating the object using new statement. 49.4 Web Library Features The next features are provided by the Web library to quickly create web applications. • Generate HTML pages using functions • Generate HTML pages using objects • HTTP Get • HTTP Post • Files Upload • URL Encode • Templates • CRUD MVC Sample • Users Logic & Registration Sample 49.5 HTTP Get Example The Page User Interface #!ring -cgi Load "weblib.ring" Import System.Web New Page { Title = "Test HTTP Get" divstart([ :style = StyleSizeFull() ] ) boxstart() text( "Test HTTP GET" ) newline() boxend() divstart([ :style = Styledivcenter("600px","550px") + StyleGradient(21) ]) divstart([:style = stylefloatleft() + stylesize("100px","100%") + stylecolor("black") + stylegradient(58)]) formstart("ex5.ring") tablestart([ :style = stylesize("65%","90%") + stylemarginleft("35%") + stylemargintop("30%") ]) rowstart([]) cellstart([]) text ( "Name : " ) cellend() cellstart([]) cTextboxStyle = StyleMarginLeft("5%") + StyleWidth("250px") + StyleColor("black") + 49.4. Web Library Features 403
- 3. Ring Documentation, Release 1.7 StyleBackColor("white") textbox([ :name = "Name", :style = cTextboxStyle ] ) cellend() rowend() rowstart([]) cellstart([]) text ( "Address : " ) cellend() cellstart([]) textbox([ :name = "Address", :style = cTextboxStyle] ) cellend() rowend() rowstart([]) cellstart([]) text ( "Phone : " ) cellend() cellstart([]) textbox([ :name = "Phone", :style = cTextboxStyle ]) cellend() rowend() rowstart([]) cellstart([]) text ( "Age : " ) cellend() cellstart([]) textbox([ :name = "Age", :style = cTextboxStyle ]) cellend() rowend() rowstart([]) cellstart([]) text ( "City: " ) cellend() cellstart([]) listbox([ :name = "City", :items = ["Cairo","Riyadh","Jeddah"], :style = stylemarginleft("5%") + stylewidth("400px") ] ) cellend() rowend() rowstart([]) cellstart([]) text ( "Country : " ) cellend() cellstart([]) combobox([ :name = "Country", :items = ["Egypt","Saudi Arabia","USA"], :style = stylemarginleft("5%") + stylewidth("400px")+ stylecolor("black")+ stylebackcolor("white")+ stylefontsize("14px") ]) cellend() rowend() rowstart([]) cellstart([]) text ( "Note : " ) cellend() cellstart([]) editbox([ :name = "Notes", :style = stylemarginleft("5%") + 49.5. HTTP Get Example 404
- 4. Ring Documentation, Release 1.7 stylesize("400px","100px")+ stylecolor("black")+ stylebackcolor("white") , :value = "write comments here..." ] ) cellend() rowend() rowstart([]) cellstart([]) cellend() cellstart([]) submit([ :value = "Send" , :Style = stylemarginleft("5%") ]) cellend() rowend() tableend() formend() divend() divend() divend() } Screen Shot: 49.5. HTTP Get Example 405
- 5. Ring Documentation, Release 1.7 The Response #!ring -cgi Load "weblib.ring" Import System.Web New Page { divstart([ :style = styledivcenter("800px","500px") ]) boxstart() text ( "HTTP GET Response" ) newline() boxend() divstart([ :style = stylefloatleft()+stylewidth("10%")+ 49.5. HTTP Get Example 406
- 6. Ring Documentation, Release 1.7 stylecolor("black")+stylegradient(58) ]) newline() text ( "Name : " ) newline() newline() text ( "Address : " ) newline() newline() text ( "Phone : " ) newline() newline() text ( "Age : " ) newline() newline() text ( "City : " ) newline() newline() text ( "Country : " ) newline() newline() text ( "Note : " ) newline() newline() divend() divstart([ :style = stylefloatleft()+stylewidth("90%")+ stylecolor("black")+stylegradient(47) ]) divstart([ :style = stylefloatleft() + stylewidth("1%") ]) newline() divend() divstart([ :style = stylefloatleft() + stylewidth("95%") ]) newline() text ( aPageVars["Name"] ) newline() newline() text ( aPageVars["Address"] ) newline() newline() text ( aPageVars["Phone"] ) newline() newline() text ( aPageVars["Age"] ) newline() newline() text ( aPageVars["City"] ) newline() newline() text (aPageVars["Country"] ) newline() newline() text ( aPageVars["Notes"] ) newline() newline() divend() divend() divend() } Screen Shot: 49.5. HTTP Get Example 407
- 7. Ring Documentation, Release 1.7 49.6 HTTP POST Example The Page User Interface #!ring -cgi Load "weblib.ring" Import System.Web New Page { boxstart() text( "Post Test") newline() boxend() divstart([ :style=StyleFloatLeft()+StyleWidth("100px") ]) newline() text( "Number1 : " ) newline() newline() text( "Number2 : " ) newline() newline() divend() formpost("ex7.ring") divstart([ :style = styleFloatLeft()+StyleWidth("200px") ]) newline() textbox([ :name = "Number1" ]) newline() newline() textbox([ :name = "Number2" ]) newline() newline() submit([ :value = "Send" ] ) divend() formend() } Screen Shot: 49.6. HTTP POST Example 408
- 8. Ring Documentation, Release 1.7 The Response #!ring -cgi Load "weblib.ring" Import System.Web New Page { boxstart() text( "Post Result" ) newline() boxend() divstart([ :style = styleFloatLeft()+styleWidth("200px") ]) newline() text( "Number1 : " + aPageVars["Number1"] ) newline() newline() text( "Number2 : " + aPageVars["Number2"] ) newline() newline() text( "Sum : " + (0 + aPageVars["Number1"] + aPageVars["Number2"] ) ) newline() divend() } Screen Shot: 49.6. HTTP POST Example 409
- 9. Ring Documentation, Release 1.7 49.7 Upload Files The Page User Interface #!ring -cgi Load "weblib.ring" Import System.Web New page { boxstart() text( "Upload File" ) newline() boxend() for x = 1 to 3 newline() next formupload("ex9.ring") text( "Customer Name : " ) textbox([ :name = "custname" ]) newline() newline() divstart([ :style = styleFloatLeft() + styleWidth("90px") ]) uploadfile("file") newline() newline() uploadfile("file2") newline() newline() submit([ :value = "Send" ]) divend() formend() } Screen Shot: 49.7. Upload Files 410
- 10. Ring Documentation, Release 1.7 The Response #!ring -cgi Load "weblib.ring" Import System.Web cUploadPath = "C:/Apache2.2/htdocs/ringapp/upload/" cUploadFolder = "/ringapp/upload/" New page { boxstart() text( "Upload Result" ) newline() boxend() newline() divstart([ :style= styleFloatLeft() + styleWidth("100px") ]) text( "Name : " + aPageVars["custname"] ) newline() divend() if aPageVars["file"] != char(13) getuploadedfile(self,"file") ok if aPageVars["file2"] != char(13) getuploadedfile(self,"file2") ok } Func getuploadedfile oObj,cFile # here we use object.property # instead of object { } to avoid executing braceend method cFileName = cUploadPath + oObj.getfilename(aPageVars,cFile) 49.7. Upload Files 411