155 lines
3.8 KiB
C
155 lines
3.8 KiB
C
/*
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* Copyright (C) 2012 - Juan Ferrer Toribio
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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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#include "sql-select-field.h"
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/**
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* SECTION: sql-select_field
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* @Short_description:
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* @Title: SqlSelectField
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**/
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G_DEFINE_TYPE (SqlSelectField, sql_select_field, SQL_TYPE_OBJECT);
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SqlObject * sql_select_field_new ()
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{
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return g_object_new (SQL_TYPE_SELECT_FIELD, NULL);
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}
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/**
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* sql_select_field_get_alias:
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* @self: an #SqlSelectField
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*
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* Gets the alias of @self.
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*
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* Return value: (transfer none): the field alias.
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**/
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const gchar * sql_select_field_get_alias (SqlSelectField * self)
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{
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g_return_val_if_fail (SQL_IS_SELECT_FIELD (self), NULL);
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return self->alias;
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}
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/**
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* sql_select_field_set_alias:
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* @self: an #SqlSelectField
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* @alias: (transfer none): new alias
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*
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* Sets the alias of @self to @alias.
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**/
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void sql_select_field_set_alias (SqlSelectField * self, const gchar * alias)
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{
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g_return_if_fail (SQL_IS_SELECT_FIELD (self));
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g_free (self->alias);
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self->alias = g_strdup (alias);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private
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static void sql_select_field_render (SqlSelectField * self, SqlRender * render)
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{
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sql_render_add_object (render, self->expr);
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if (self->alias)
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{
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sql_render_add_token (render, "AS");
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sql_render_add_identifier (render, self->alias);
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}
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties
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enum
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{
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PROP_EXPR = 1
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,PROP_ALIAS
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};
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static void sql_select_field_set_property (SqlSelectField * self, guint id,
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const GValue * value, GParamSpec * pspec)
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{
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switch (id)
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{
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case PROP_EXPR:
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sql_object_remove (self, self->expr);
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self->expr = sql_object_add (self, g_value_get_object (value));
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break;
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case PROP_ALIAS:
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g_free (self->alias);
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self->alias = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
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}
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}
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static void sql_select_field_get_property (SqlSelectField * self, guint id,
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GValue * value, GParamSpec * pspec)
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{
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switch (id)
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{
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case PROP_EXPR:
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g_value_set_object (value, self->expr);
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break;
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case PROP_ALIAS:
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g_value_set_string (value, self->alias);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
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}
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
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static void sql_select_field_init (SqlSelectField * self)
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{
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self->expr = NULL;
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self->alias = NULL;
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}
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static void sql_select_field_finalize (SqlSelectField * self)
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{
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g_free (self->alias);
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sql_object_remove (self, self->expr);
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G_OBJECT_CLASS (sql_select_field_parent_class)->finalize (G_OBJECT (self));
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}
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static void sql_select_field_class_init (SqlSelectFieldClass * klass)
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{
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GObjectClass * k = G_OBJECT_CLASS (klass);
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k->finalize = (GObjectFinalizeFunc) sql_select_field_finalize;
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k->set_property = (GObjectSetPropertyFunc) sql_select_field_set_property;
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k->get_property = (GObjectGetPropertyFunc) sql_select_field_get_property;
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SQL_OBJECT_CLASS (k)->render = (SqlRenderFunc) sql_select_field_render;
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g_object_class_install_property (k, PROP_EXPR,
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sql_param_object ("expr"
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,("Expression")
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,("The expression")
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,SQL_TYPE_EXPR
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,G_PARAM_READWRITE
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));
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g_object_class_install_property (k, PROP_ALIAS,
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g_param_spec_string ("alias"
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,("Alias")
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,("The alias for the expression")
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,NULL
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,G_PARAM_READWRITE
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));
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}
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