1 Package Body hr_tcn_upd as
2 /* $Header: hrtcnrhi.pkb 115.5 2002/12/03 10:00:59 raranjan noship $ */
3 --
4 -- ----------------------------------------------------------------------------
5 -- | Private Global Definitions |
6 -- ----------------------------------------------------------------------------
7 --
8 g_package varchar2(33) := ' hr_tcn_upd.'; -- Global package name
9 --
10 -- ----------------------------------------------------------------------------
11 -- |------------------------------< update_dml >------------------------------|
12 -- ----------------------------------------------------------------------------
13 -- {Start Of Comments}
14 --
15 -- Description:
16 -- This procedure controls the actual dml update logic. The processing of
17 -- this procedure is:
18 -- 1) Increment the object_version_number by 1 if the object_version_number
19 -- is defined as an attribute for this entity.
20 -- 2) To set and unset the g_api_dml status as required (as we are about to
21 -- perform dml).
22 -- 3) To update the specified row in the schema using the primary key in
23 -- the predicates.
24 -- 4) To trap any constraint violations that may have occurred.
25 -- 5) To raise any other errors.
26 --
27 -- Prerequisites:
28 -- This is an internal private procedure which must be called from the upd
29 -- procedure.
30 --
31 -- In Parameters:
32 -- A Pl/Sql record structre.
33 --
34 -- Post Success:
35 -- The specified row will be updated in the schema.
36 --
37 -- Post Failure:
38 -- On the update dml failure it is important to note that we always reset the
39 -- g_api_dml status to false.
40 -- If a check, unique or parent integrity constraint violation is raised the
41 -- constraint_error procedure will be called.
42 -- If any other error is reported, the error will be raised after the
43 -- g_api_dml status is reset.
44 --
45 -- Developer Implementation Notes:
46 -- The update 'set' attribute list should be modified if any of your
47 -- attributes are not updateable.
48 --
49 -- Access Status:
50 -- Internal Row Handler Use Only.
51 --
52 -- {End Of Comments}
53 -- ----------------------------------------------------------------------------
54 Procedure update_dml
55 (p_rec in out nocopy hr_tcn_shd.g_rec_type
56 ) is
57 --
58 l_proc varchar2(72) := g_package||'update_dml';
59 --
60 Begin
61 hr_utility.set_location('Entering:'||l_proc, 5);
62 --
63 -- Increment the object version
64 p_rec.object_version_number := p_rec.object_version_number + 1;
65 --
66 --
67 --
68 -- Update the hr_template_canvases_b Row
69 --
70 update hr_template_canvases_b
71 set
72 template_canvas_id = p_rec.template_canvas_id
73 ,object_version_number = p_rec.object_version_number
74 ,template_window_id = p_rec.template_window_id
75 ,form_canvas_id = p_rec.form_canvas_id
76 where template_canvas_id = p_rec.template_canvas_id;
77 --
78 --
79 --
80 hr_utility.set_location(' Leaving:'||l_proc, 10);
81 --
82 Exception
83 When hr_api.check_integrity_violated Then
84 -- A check constraint has been violated
85 --
86 hr_tcn_shd.constraint_error
87 (p_constraint_name => hr_api.strip_constraint_name(SQLERRM));
88 When hr_api.parent_integrity_violated Then
89 -- Parent integrity has been violated
90 --
91 hr_tcn_shd.constraint_error
92 (p_constraint_name => hr_api.strip_constraint_name(SQLERRM));
93 When hr_api.unique_integrity_violated Then
94 -- Unique integrity has been violated
95 --
96 hr_tcn_shd.constraint_error
97 (p_constraint_name => hr_api.strip_constraint_name(SQLERRM));
98 When Others Then
99 --
100 Raise;
101 End update_dml;
102 --
103 -- ----------------------------------------------------------------------------
104 -- |------------------------------< pre_update >------------------------------|
105 -- ----------------------------------------------------------------------------
106 -- {Start Of Comments}
107 --
108 -- Description:
109 -- This private procedure contains any processing which is required before
110 -- the update dml.
111 --
112 -- Prerequisites:
113 -- This is an internal procedure which is called from the upd procedure.
114 --
115 -- In Parameters:
116 -- A Pl/Sql record structure.
117 --
118 -- Post Success:
119 -- Processing continues.
120 --
121 -- Post Failure:
122 -- If an error has occurred, an error message and exception wil be raised
123 -- but not handled.
124 --
125 -- Developer Implementation Notes:
126 -- Any pre-processing required before the update dml is issued should be
127 -- coded within this procedure. It is important to note that any 3rd party
128 -- maintenance should be reviewed before placing in this procedure.
129 --
130 -- Access Status:
131 -- Internal Row Handler Use Only.
132 --
133 -- {End Of Comments}
134 -- ----------------------------------------------------------------------------
135 Procedure pre_update
136 (p_rec in hr_tcn_shd.g_rec_type
137 ) is
138 --
139 l_proc varchar2(72) := g_package||'pre_update';
140 --
141 Begin
142 hr_utility.set_location('Entering:'||l_proc, 5);
143 --
144 hr_utility.set_location(' Leaving:'||l_proc, 10);
145 End pre_update;
146 --
147 -- ----------------------------------------------------------------------------
148 -- |-----------------------------< post_update >------------------------------|
149 -- ----------------------------------------------------------------------------
150 -- {Start Of Comments}
151 --
152 -- Description:
153 -- This private procedure contains any processing which is required after the
154 -- update dml.
155 --
156 -- Prerequisites:
157 -- This is an internal procedure which is called from the upd procedure.
158 --
159 -- In Parameters:
160 -- A Pl/Sql record structure.
161 --
162 -- Post Success:
163 -- Processing continues.
164 --
165 -- Post Failure:
166 -- If an error has occurred, an error message and exception will be raised
167 -- but not handled.
168 --
169 -- Developer Implementation Notes:
170 -- Any post-processing required after the update dml is issued should be
171 -- coded within this procedure. It is important to note that any 3rd party
172 -- maintenance should be reviewed before placing in this procedure.
173 --
174 -- Access Status:
175 -- Internal Row Handler Use Only.
176 --
177 -- {End Of Comments}
178 -- ----------------------------------------------------------------------------
179 Procedure post_update
180 (p_rec in hr_tcn_shd.g_rec_type
181 ) is
182 --
183 l_proc varchar2(72) := g_package||'post_update';
184 --
185 Begin
186 hr_utility.set_location('Entering:'||l_proc, 5);
187 begin
188 --
189 hr_tcn_rku.after_update
190 (p_template_canvas_id
191 => p_rec.template_canvas_id
192 ,p_object_version_number
193 => p_rec.object_version_number
194 ,p_template_window_id
195 => p_rec.template_window_id
196 ,p_form_canvas_id
197 => p_rec.form_canvas_id
198 ,p_object_version_number_o
199 => hr_tcn_shd.g_old_rec.object_version_number
200 ,p_template_window_id_o
201 => hr_tcn_shd.g_old_rec.template_window_id
202 ,p_form_canvas_id_o
203 => hr_tcn_shd.g_old_rec.form_canvas_id
204 );
205 --
206 exception
207 --
208 when hr_api.cannot_find_prog_unit then
209 --
210 hr_api.cannot_find_prog_unit_error
211 (p_module_name => 'HR_TEMPLATE_CANVASES_B'
212 ,p_hook_type => 'AU');
213 --
214 end;
215 --
216 hr_utility.set_location(' Leaving:'||l_proc, 10);
217 End post_update;
218 --
219 -- ----------------------------------------------------------------------------
220 -- |-----------------------------< convert_defs >-----------------------------|
221 -- ----------------------------------------------------------------------------
222 -- {Start Of Comments}
223 --
224 -- Description:
225 -- The Convert_Defs procedure has one very important function:
226 -- It must return the record structure for the row with all system defaulted
227 -- values converted into its corresponding parameter value for update. When
228 -- we attempt to update a row through the Upd process , certain
229 -- parameters can be defaulted which enables flexibility in the calling of
230 -- the upd process (e.g. only attributes which need to be updated need to be
231 -- specified). For the upd process to determine which attributes
232 -- have NOT been specified we need to check if the parameter has a reserved
233 -- system default value. Therefore, for all parameters which have a
234 -- corresponding reserved system default mechanism specified we need to
235 -- check if a system default is being used. If a system default is being
236 -- used then we convert the defaulted value into its corresponding attribute
237 -- value held in the g_old_rec data structure.
238 --
239 -- Prerequisites:
240 -- This private function can only be called from the upd process.
241 --
242 -- In Parameters:
243 -- A Pl/Sql record structure.
244 --
245 -- Post Success:
246 -- The record structure will be returned with all system defaulted parameter
247 -- values converted into its current row attribute value.
248 --
249 -- Post Failure:
250 -- No direct error handling is required within this function. Any possible
251 -- errors within this procedure will be a PL/SQL value error due to
252 -- conversion of datatypes or data lengths.
253 --
254 -- Developer Implementation Notes:
255 -- None.
256 --
257 -- Access Status:
258 -- Internal Row Handler Use Only.
259 --
260 -- {End Of Comments}
261 -- ----------------------------------------------------------------------------
262 Procedure convert_defs
263 (p_rec in out nocopy hr_tcn_shd.g_rec_type
264 ) is
265 --
266 Begin
267 --
268 -- We must now examine each argument value in the
269 -- p_rec plsql record structure
270 -- to see if a system default is being used. If a system default
271 -- is being used then we must set to the 'current' argument value.
272 --
273 If (p_rec.template_window_id = hr_api.g_number) then
274 p_rec.template_window_id :=
275 hr_tcn_shd.g_old_rec.template_window_id;
276 End If;
277 If (p_rec.form_canvas_id = hr_api.g_number) then
278 p_rec.form_canvas_id :=
279 hr_tcn_shd.g_old_rec.form_canvas_id;
280 End If;
281 --
282 End convert_defs;
283 --
284 -- ----------------------------------------------------------------------------
285 -- |---------------------------------< upd >----------------------------------|
286 -- ----------------------------------------------------------------------------
287 Procedure upd
288 (p_rec in out nocopy hr_tcn_shd.g_rec_type
289 ) is
290 --
291 l_proc varchar2(72) := g_package||'upd';
292 --
293 Begin
294 hr_utility.set_location('Entering:'||l_proc, 5);
295 --
296 -- We must lock the row which we need to update.
297 --
298 hr_tcn_shd.lck
299 (p_rec.template_canvas_id
300 ,p_rec.object_version_number
301 );
302 --
303 -- 1. During an update system defaults are used to determine if
304 -- arguments have been defaulted or not. We must therefore
305 -- derive the full record structure values to be updated.
306 --
307 -- 2. Call the supporting update validate operations.
308 --
309 convert_defs(p_rec);
310 hr_tcn_bus.update_validate
311 (p_rec
312 );
313 --
314 -- Call the supporting pre-update operation
315 --
316 hr_tcn_upd.pre_update(p_rec);
317 --
318 -- Update the row.
319 --
320 hr_tcn_upd.update_dml(p_rec);
321 --
322 -- Call the supporting post-update operation
323 --
324 hr_tcn_upd.post_update
325 (p_rec
326 );
327 End upd;
328 --
329 -- ----------------------------------------------------------------------------
330 -- |---------------------------------< upd >----------------------------------|
331 -- ----------------------------------------------------------------------------
332 Procedure upd
333 (p_template_canvas_id in number
334 ,p_object_version_number in out nocopy number
335 ,p_template_window_id in number default hr_api.g_number
336 ,p_form_canvas_id in number default hr_api.g_number
337 ) is
338 --
339 l_rec hr_tcn_shd.g_rec_type;
340 l_proc varchar2(72) := g_package||'upd';
341 --
342 Begin
343 hr_utility.set_location('Entering:'||l_proc, 5);
344 --
345 -- Call conversion function to turn arguments into the
346 -- l_rec structure.
347 --
348 l_rec :=
349 hr_tcn_shd.convert_args
350 (p_template_canvas_id
351 ,p_object_version_number
352 ,p_template_window_id
353 ,p_form_canvas_id
354 );
355 --
356 -- Having converted the arguments into the
357 -- plsql record structure we call the corresponding record
358 -- business process.
359 --
360 hr_tcn_upd.upd
361 (l_rec
362 );
363 p_object_version_number := l_rec.object_version_number;
364 --
365 hr_utility.set_location(' Leaving:'||l_proc, 10);
366 End upd;
367 --
368 end hr_tcn_upd;
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