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efrain |
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle 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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// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Configurable Reports
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* A Moodle block for creating customizable reports
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* @package blocks
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* @author: Juan leyva <http://www.twitter.com/jleyvadelgado>
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* @date: 2009
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*/
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require_once($CFG->dirroot.'/blocks/configurable_reports/plugin.class.php');
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class plugin_bar extends plugin_base {
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public function init() {
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$this->fullname = "Bar chart";
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$this->form = true;
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$this->ordering = true;
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$this->reporttypes = array('courses', 'sql', 'users', 'timeline', 'categories');
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}
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public function summary($data) {
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return "Bar chart summary";
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}
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// Data -> Plugin configuration data.
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public function execute($id, $data, $finalreport) {
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global $DB, $CFG;
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$series = array();
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if ($finalreport) {
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list($labelidx, $labelname) = explode(",", $data->label_field);
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$series[$labelname] = array();
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if (!is_array($data->value_fields)) {
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$data->value_fields = array($data->value_fields);
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}
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foreach ($finalreport as $r) {
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$series[$labelname][] = $r[$labelidx];
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foreach ($data->value_fields as $valuefields) {
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list($idx, $name) = explode(",", $valuefields);
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$value = $r[$idx];
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if ($idx == $labelidx) {
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error_log("moodle:configurable_reports:bar: refusing to chart label field");
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continue;
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}
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if (!is_numeric($value)) {
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// Can't just skip. That would throw off the indexes if a column has bad values in some but not all rows.
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error_log("moodle:configurable_reports:bar: substituting 0 for non-numeric value '$value'");
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$value = 0;
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}
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if (!array_key_exists($name, $series)) {
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$series[$name] = array();
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}
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$series[$name][] = $value;
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}
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}
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}
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$graphdata = urlencode(json_encode($series));
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return $CFG->wwwroot.'/blocks/configurable_reports/components/plot/bar/graph.php?reportid='.$this->report->id.'&id='.$id.'&graphdata='.$graphdata;
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}
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public function get_series($data) {
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$graphdataraw = required_param('graphdata', PARAM_RAW);
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$graphdata = json_decode(urldecode($graphdataraw));
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return (array)$graphdata;
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}
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}
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