search: Introduce a search engine
This is architectured in such a way that it will allow us to introduce other searcheable terms in the future. All the functionality that in the past was in GcalManager is now spread across GcalSearchModel, GcalSearchHitEvent and GcalSearchEngine.
This commit is contained in:
Georges Basile Stavracas Neto
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/* gcal-search-model.c
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*
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* Copyright 2019 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "GcalSearchModel"
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#include "e-cal-data-model.h"
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#include "gcal-debug.h"
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#include "gcal-search-hit.h"
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#include "gcal-search-hit-event.h"
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#include "gcal-search-model.h"
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#include "gcal-utils.h"
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#include <dazzle.h>
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struct _GcalSearchModel
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{
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GObject parent;
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GCancellable *cancellable;
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gint max_results;
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GListModel *model;
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};
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static void e_cal_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface);
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static void g_list_model_interface_init (GListModelInterface *iface);
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G_DEFINE_TYPE_WITH_CODE (GcalSearchModel, gcal_search_model, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (E_TYPE_CAL_DATA_MODEL_SUBSCRIBER,
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e_cal_data_model_subscriber_interface_init)
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL,
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g_list_model_interface_init))
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/*
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* Callbacks
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*/
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static void
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on_model_items_changed_cb (GListModel *model,
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guint position,
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guint removed,
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guint added,
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GcalSearchModel *self)
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{
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g_list_model_items_changed (G_LIST_MODEL (self), position, removed, added);
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}
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/*
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* ECalDataModelSubscriber interface
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*/
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static gint
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compare_search_hits_cb (gconstpointer a,
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gconstpointer b,
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gpointer user_data)
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{
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GcalSearchHit *hit_a, *hit_b;
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gint result;
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hit_a = (GcalSearchHit *) a;
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hit_b = (GcalSearchHit *) b;
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/* Priority */
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result = gcal_search_hit_get_priority (hit_a) - gcal_search_hit_get_priority (hit_b);
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if (result != 0)
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return result;
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/* Compare func */
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return gcal_search_hit_compare (hit_a, hit_b);
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}
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static void
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gcal_search_model_component_added (ECalDataModelSubscriber *subscriber,
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ECalClient *client,
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ECalComponent *component)
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{
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g_autoptr (GcalSearchHitEvent) search_hit = NULL;
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g_autoptr (GcalEvent) event = NULL;
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g_autoptr (GError) error = NULL;
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GcalSearchModel *self;
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ESource *source;
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self = GCAL_SEARCH_MODEL (subscriber);
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if (g_list_model_get_n_items (self->model) > self->max_results)
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return;
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source = e_client_get_source (E_CLIENT (client));
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event = gcal_event_new (source, component, &error);
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if (error)
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{
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g_warning ("Error adding event to search results: %s", error->message);
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return;
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}
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GCAL_TRACE_MSG ("Adding search hit '%s'", gcal_event_get_summary (event));
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search_hit = gcal_search_hit_event_new (event);
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g_list_store_insert_sorted (G_LIST_STORE (self->model),
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search_hit,
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compare_search_hits_cb,
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self);
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}
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static void
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gcal_search_model_component_modified (ECalDataModelSubscriber *subscriber,
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ECalClient *client,
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ECalComponent *comp)
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{
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}
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static void
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gcal_search_model_component_removed (ECalDataModelSubscriber *subscriber,
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ECalClient *client,
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const gchar *uid,
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const gchar *rid)
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{
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}
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static void
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gcal_search_model_freeze (ECalDataModelSubscriber *subscriber)
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{
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}
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static void
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gcal_search_model_thaw (ECalDataModelSubscriber *subscriber)
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{
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}
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static void
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e_cal_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface)
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{
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iface->component_added = gcal_search_model_component_added;
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iface->component_modified = gcal_search_model_component_modified;
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iface->component_removed = gcal_search_model_component_removed;
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iface->freeze = gcal_search_model_freeze;
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iface->thaw = gcal_search_model_thaw;
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}
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/*
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* GListModel interface
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*/
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static GType
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gcal_search_model_get_item_type (GListModel *model)
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{
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return DZL_TYPE_SUGGESTION;
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}
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static guint
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gcal_search_model_get_n_items (GListModel *model)
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{
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GcalSearchModel *self = (GcalSearchModel *)model;
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return g_list_model_get_n_items (self->model);
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}
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static gpointer
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gcal_search_model_get_item (GListModel *model,
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guint position)
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{
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GcalSearchModel *self = (GcalSearchModel *)model;
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return g_list_model_get_item (self->model, position);
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}
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static void
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g_list_model_interface_init (GListModelInterface *iface)
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{
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iface->get_item_type = gcal_search_model_get_item_type;
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iface->get_n_items = gcal_search_model_get_n_items;
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iface->get_item = gcal_search_model_get_item;
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}
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/*
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* GObject overrides
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*/
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static void
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gcal_search_model_finalize (GObject *object)
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{
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GcalSearchModel *self = (GcalSearchModel *)object;
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g_cancellable_cancel (self->cancellable);
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g_clear_object (&self->cancellable);
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g_clear_object (&self->model);
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G_OBJECT_CLASS (gcal_search_model_parent_class)->finalize (object);
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}
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static void
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gcal_search_model_class_init (GcalSearchModelClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = gcal_search_model_finalize;
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}
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static void
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gcal_search_model_init (GcalSearchModel *self)
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{
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self->model = (GListModel*) g_list_store_new (DZL_TYPE_SUGGESTION);
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g_signal_connect_object (self->model, "items-changed", G_CALLBACK (on_model_items_changed_cb), self, 0);
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}
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GcalSearchModel *
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gcal_search_model_new (GCancellable *cancellable,
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gint max_results)
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{
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GcalSearchModel *model;
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model = g_object_new (GCAL_TYPE_SEARCH_MODEL, NULL);
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model->max_results = max_results;
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model->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
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return model;
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}
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