Changes for page WebObjects and Squeryl

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• Page properties (1 modified, 0 added, 0 removed)

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...	...	@@ -1,4 +1,4 @@
1		-= Squeryl ~= //SQL-like// DSL for Scala =
	1	+= Squeryl ~= //SQL-like// DSL in Scala =
2	2
3	3	Advantages of [[Squeryl>>http://squeryl.org/]] over EOF:
4	4
...	...	@@ -7,11 +7,11 @@
7	7	** Issues database transactions concurrently
8	8	* Scala Actor compatible
9	9	** Immutable object model/graph
10		-** Fine-grained transaction control
11		-* Strongly-typed
	10	+** Explicit transaction control
	11	+* Type Safety
12	12	** Better suited for database/business "logic".
13	13	E.g: Exploits the compiler and IDE to catch exceptions at compile time rather than at run-time.
14		-* Uses Scala collection classes
	14	+* Uses Scala Collections
15	15
16	16	= Migrating EOF -> Squeryl =
17	17
...	...	@@ -45,3 +45,38 @@
45	45	* Optional attributes (i.e those that ##allowsNull##) are typed as ##OptionT##
46	46	* To one relationships that are not mandatory (i.e optional relationships) are also typed as ##OptionT##
47	47	* To many relationships are represented as a Squeryl iterable (collection class) as opposed to a ##NSArray##.
	48	+
	49	+=== Use of Scala Collections ===
	50	+
	51	+===== 1. Filtering =====
	52	+
	53	+Instead of using EOQualifiers to filter EOs dynamically, you can apply the type safe filter in Scala:
	54	+
	55	+{{code}}
	56	+
	57	+def activeFiles = files.filter(_.active == true)
	58	+
	59	+{{/code}}
	60	+
	61	+===== 2. Iteration =====
	62	+
	63	+Functional language iteration that's become increasingly popular can be used:
	64	+
	65	+{{code}}
	66	+
	67	+activeFiles.foreach(f => {
	68	+ ...
	69	+})
	70	+
	71	+{{/code}}
	72	+
	73	+===== 3. For-Comprehensions =====
	74	+
	75	+{{code}}
	76	+
	77	+
	78	+Here's just an example use of sequence comprehension:
	79	+
	80	+def activeFiles = for (file <- files if file.active == true) yield f
	81	+
	82	+{{/code}}