2. contents
• w is Ruby o n Rails ?
hat
• w does it all m
hat ean?
• w uses Ruby o n Rails ?
ho
• w to get som
ant e?
A presentation by
3. w is Ruby on Rails?
hat
an o pe n s o urc e frame wo rks c o ns is ting o f 2
parts :
Ruby –the program ing language
m
Rails –the fram orks that w inspired by Struts
ew as
A presentation by
4. w is Ruby on Rails?
hat
us e d fo r ‘ag ile ’ we b de ve lo pme nt by allo wing a
de ve lo pe r to us e the ‘Co C’ princ iple and
RubyGe ms
Co C –(Convention over Configuration) is a design principle that makes the
implem entation and coding of a project simpler by making the developer only
specify the unconventional aspects of a app. For instance if a developer creates
a class in the code the DB table w be nam the sam by default and all calls
ill ed e
to that class w autom
ill atically reference that table
RubyGe m –a systemfor managing Ruby Software libraries. These libraries allow
a developer to quickly add com ponents like form or m ber m
s em anagem ent
w ithout having to worry about dependences to other libraries since they are built
to run as a independent package.
A presentation by
5. w does it all m
hat ean?
te ll me mo re abo ut Ruby
• an object-oriented program ing inspired by Perl that w created in
m as
the m id-1990s and w initially developed and designed by Yukihiro
as
"M atz" M atsumoto.
• created w the goal of m
ith aking the program er do less w
m ork.
• very flexible program ing language
m
• features dynam typing.
ic
• built in garbage collector, this is used to keep from leaking m ory.
em
• can load libraries dynam ically based on need
• highly portable: developed m ostly on GNU/Linux, but w orks on many
types of UNIX, M OS X, W
ac indow 95/98/M
s e/NT/2000/XP, DOS,
BeOS, OS/2, etc.
• currently on build 1.8.7
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6. w does it all m
hat ean?
te ll me mo re abo ut Rails
• it w extracted by David Hansson from his w on Basecam
as ork p
• a program er can use som
m ething called ‘ scaffolding’ hich
w
autom atically generates basic pieces of code necessary for the
‘logistics’ (deleting, adding, reading) of a site.
• built to use JS libraries out of the box so it is very behavior rich on the
front end.
• does a great job of separating the M VC, w hich allow a developer to
s
m ake ‘ eb 2.0’
W based apps that easily connects to the Server and DB,
then packages the DB Rowinfo into an object on the View
• w orks w ith
• Server - Apache, lighttpd, or nginx proxying to M ongrel
• Database - M ySQL, PostgreSQL, SQLite, Oracle, SQL
Server, DB2 etc.
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7. w does it all m
hat ean?
what are the drawbac ks o f us ing it?
• still newso things like security holes are being found all
the tim e
• setting up the Server to run Ro R can be very
challenging
• since so m any things are done autom atically out of the
box - creation of DB tables, adding, m odifying, deleting
info in the tables - program ers can get lazy and the
m
app can becom hard to scale (see Tw )
e itter
• can be hard to find good program ers
m
• m program ers need to learn 2 newtechnologies,
ost m
Ruby and Rails
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8. w does it all m
hat ean?
whe n s ho uld I us e it?
• w hen creating a w app from scratch and need
eb
m any of the com ponents found in m odern W 2.0
eb
offerings. Ro R gives you these out of the box.
• w hen a w site is being driven by inform
eb ation from a
Database.
• have a visual rich site, since Ro R does a good job
separating the M changes can be m
VC ade data-
handling w ithout effecting the UI.
• you have an aggressive tim efram for launching a
e
product
A presentation by
9. w uses Ruby on Rails?
ho
http://w w
w .basecam phq.com /
http://w w
w .cam pfirenow .com/
http://w w
w .43things.com /
http://w w
w .coastr.com /
http://twitter.com/
http://w w
w .yellow pages.com /
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10. w to get som
ant e?
hello@momentumdesignlab.com
1.866.542.7124
A presentation by
