Thursday, 29 October 2015

Please welcome PeanutButter 1.0.118!

 (if you don't know what PeanutButter is -- apart from a yummy spread and a rather silly name for an open-source project -- have a gander here:

What's new:
  • Updates to DatabaseHelpers:
    • Fluent syntax for conditions (.And() and .Or() extension methods)
    • EqualityOperators changes
      • Like_ is deprecated (but still functions). It is replaced by Contains, with the same functionality
      • Like is new: does not insert any wildcards -- that's up to you! (also, finally, has a reasonable name, now that I know how to use keywords as identifiers in VB.NET. Yes, the DBHelpers are written in VB.NET. Get over it.)
      • StartsWith: does what it says on the tin
      • EndsWith: also does what it says on the tin
    • Added ConcatenatedField for when you want some composite result from a few fields
    • Updated CalculatedField: All *Fields now implement IField, so all of the existing funcationality which SelectFields could give you can also be found for the others (conditions, etc)
  • Enumerable convenience functions
    • And() -- like Union() but produces an Array
      • eg new[] { 1, 2 }.And(3) is equivalent to new[] { 1,2,3}
    • ButNot() -- like Except(), but produces an Array
  • RandomGenerators:
    • RandomValueGen.GetRandomCollection
      • Takes a factory function and optionally min/max number of items
      • eg to get a random-sized IEnumerable<int> of random ints, do:
        RandomValueGen.GetRandomCollection(() => RandomValueGen.GetRandomInt())
    • RandomValueGen.GetRandomSelectionFrom
      • picks some random items from another collection
  • ExpressionHelper: 
    • GetMemberPathFor:
      use to get full property paths from lambdas, eg
      ExpressionHelper.GetMemberPathFor<Foo>(fooItem => fooItem.SomeProperty.SomeValue)
      gets you
      Useful for testing or somewhere where you need to get to properties dynamically
    • GetPropertyTypeFor:
      Similar usage to GetMemberPathFor, but returns the property type
  • Of course, there are some bugfixes
  • And probably other stuff I forgot... It's been a while since I tooted on the PeanutButter horn.
 Like other PeanutButter bits and pieces, these have been born out of a desire for convenience, cleaner code and/or getting the compiler to check stuff before hitting the runtime. I hope they benefit others -- I know that I use a little PB every day (:

As always, usage, source availability and distribution remain totally free.

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PeanutButter.RandomValueGen: the builder pattern & random generation for testing purposes

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