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IN NO EVENT SHALL THE COPYRIGHT */ /* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ /* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */ /* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */ /* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */ /* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* */ /*----------------------------------------------------------------------------*/ /* ooDialog User Guide Exercise07 Part 2: The WowModel component. v02-00 20Jly13 Contains: Classes: WowModel. Pre-requisites: The Model-View Framework (MVF) Description: The model component of the "Words of Wisdom" app. Changes: v01-00 31May12: First version. v02-00 06Sep12: Second version - uses the MVF. Class name changed from WowPicker to WowModel. 09Jan13: Comment-out 'say's. 01Apr13: After ooDialog 4.2.2, Support folder moved to exercise folder, so change to ::Requires needed. 20Jly13: Added another "wise saying" to the data file so had to add 1 to upped bound for random selection in 'pickWow' method. ------------------------------------------------------------------------------*/ /*////////////////////////////////////////////////////////////////////////////// ============================================================================== WowModel v01-00 13Feb13 --------- A class that returns a Words of Wisdom string, selected randomly from a set of such Words of Wisdom. (Potential enhancements: Request a different set from the WowData class; Have the size of the set configurable.) Changes: v01-00 31may12: First version. v02-00 06Sep12: Second version - uses the MVF. 13Feb13: Mods to comments only. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */ ::REQUIRES "..\Exercise07\Support\Model.rex" -- MVF ::CLASS WowModel SUBCLASS Model PUBLIC --v01-00-->MVF /*---------------------------------------------------------------------------- newInstance - class method required for MVF. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ ::METHOD newInstance CLASS PUBLIC --MVF use strict arg instanceName forward class (super) continue -- Super does the ~new, gets the data -- and passes it as a param on the init. modelId = RESULT -- MVF (or just 'return RESULT') return modelId /*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /*---------------------------------------------------------------------------- init - Since there's not no divided setup as in Views, 'activate' is same as 'init' so with MVF we just use 'init'. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ ::METHOD init -- MVF expose arrWowSet use strict arg dirWowSet -- MVF: data for model provided by super arrWowSet = dirWowSet[Records] -- MVF: pre-defines format of data. return self -- MVF. /*---------------------------------------------------------------------------- activate - Not used by Model components when using MVF. --v01-00 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /*::METHOD activate expose arrWowSet dataSource = .local~my.idWowData arrWowSet = dataSource~readWowSet return */ /*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /*---------------------------------------------------------------------------- pickWow - picks a Word of Wisdom from the current wowSet and returns it. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ ::METHOD pickWow -- v01-00 & MVF expose arrWowSet i = random(1,26) return arrWowSet[i,1] /*---------------------------------------------------------------------------- query - MVF sends 'query' when the View is created. However, this function is not used by WowView since it does not display data when the dialog is opened for first time. Thus, since the superclass's method is not required either, this method merely returns a string. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ ::METHOD query PUBLIC -- MVF return "WowModel-query: this method not supported." /*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ /*============================================================================*/