From e5e634b31f6c091646e856e757d6f1d7e2e88f97 Mon Sep 17 00:00:00 2001
From: Eduardo Humberto <eduardo.humberto1992@gmail.com>
Date: Fri, 11 Jan 2019 19:52:06 -0200
Subject: [PATCH] Start export vocabulary (ref. #180)

---
 src/exporter/class-tainacan-term-exporter.php | 157 ++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 src/exporter/class-tainacan-term-exporter.php

diff --git a/src/exporter/class-tainacan-term-exporter.php b/src/exporter/class-tainacan-term-exporter.php
new file mode 100644
index 000000000..886f149bf
--- /dev/null
+++ b/src/exporter/class-tainacan-term-exporter.php
@@ -0,0 +1,157 @@
+<?php
+
+/**
+ * @author: MediaLab-UFG(Eduardo Humberto).
+ * Term Exporter
+ *
+ * Class to export files CSV with terms
+ *
+ */
+
+namespace Tainacan\Exporter;
+use Tainacan;
+use Tainacan\Entities;
+use Tainacan\Repositories;
+
+class Term_Exporter extends Exporter {
+
+    protected $steps = [
+        [
+            'name' => 'Export Terms',
+            'progress_label' => 'Exporting terms',
+            'callback' => 'exporting_terms'
+        ]
+    ];
+
+    public function __construct($attributes = array()){
+        parent::__construct($attributes);
+        $this->set_accepted_mapping_methods('any'); // set all method to mapping
+        $this->accept_no_mapping = true;
+
+        $this->set_default_options([
+            'delimiter' => ',',
+            'enclosure' => '"'
+        ]);
+    }
+
+    /**
+     * When exporter is finished, gets the final output
+     */
+    public function get_output() {
+        $files = $this->get_output_files();
+
+        if ( is_array($files) && isset($files['termcsvexporter.csv'])) {
+            $file = $files['termcsvexporter.csv'];
+
+            $message = __('Your CSV file is ready! Access it in the link below:', 'tainacan');
+            $message .= '<br/><br/>';
+            $message .= '<a href="' . $file['url'] . '">Download</a>';
+
+            return $message;
+
+        } else {
+            $this->add_error_log('Output file not found! Maybe you need to correct the permissions of your upload folder');
+        }
+    }
+
+    function str_putcsv($item, $delimiter = ',', $enclosure = '"') {
+        // Open a memory "file" for read/write...
+        $fp = fopen('php://temp', 'r+');
+
+        fputcsv($fp, $item, $delimiter, $enclosure);
+        rewind($fp);
+        //Getting detailed stats to check filesize:
+        $fstats = fstat($fp);
+        $data = fread($fp, $fstats['size']);
+        fclose($fp);
+        return rtrim($data, "\n");
+    }
+
+    public function options_form() {
+        ob_start();
+        ?>
+        <div class="field">
+            <label class="label"><?php _e('CSV Delimiter', 'tainacan'); ?></label>
+            <span class="help-wrapper">
+					<a class="help-button has-text-secondary">
+						<span class="icon is-small">
+							<i class="tainacan-icon tainacan-icon-help" ></i>
+						</span>
+					</a>
+					<div class="help-tooltip">
+						<div class="help-tooltip-header">
+							<h5><?php _e('CSV Delimiter', 'tainacan'); ?></h5>
+						</div>
+						<div class="help-tooltip-body">
+							<p><?php _e('The character used to separate each column in your CSV (e.g. , or ;)', 'tainacan'); ?></p>
+						</div>
+					</div>
+				</span>
+            <div class="control is-clearfix">
+                <input class="input" type="text" name="delimiter" value="<?php echo $this->get_option('delimiter'); ?>">
+            </div>
+        </div>
+
+        <div class="field export_term_csv_taxonomies">
+            <label class="label"><?php _e('Target taxonomy:', 'tainacan'); ?></label>
+            <span class="help-wrapper">
+					<a class="help-button has-text-secondary">
+						<span class="icon is-small">
+							<i class="tainacan-icon tainacan-icon-help" ></i>
+						</span>
+					</a>
+					<div class="help-tooltip">
+						<div class="help-tooltip-header">
+							<h5><?php _e('Existing Taxonomy', 'tainacan'); ?></h5>
+						</div>
+						<div class="help-tooltip-body">
+							<p><?php _e('Inform the taxonomy you want to export the terms', 'tainacan'); ?></p>
+							<p><?php _e('Select a taxonomy.', 'tainacan'); ?></p>
+						</div>
+					</div>
+				</span>
+            <div class="control is-clearfix">
+                <div class="select">
+                    <select name="select_taxonomy" class="select_taxonomy">
+                        <?php
+                        $Tainacan_Taxonomies  = \Tainacan\Repositories\Taxonomies::get_instance();
+                        $taxonomies  = $Tainacan_Taxonomies->fetch( ['nopaging' => true], 'OBJECT' );
+                        foreach( $taxonomies as $taxonomie) {
+                            ?>
+                            <option value="<?php echo $taxonomie->get_db_identifier();?>"><?php echo $taxonomie->get_name() ?> </option>
+                            <?php
+                        }
+                        ?>
+                    </select>
+
+                </div>
+
+            </div>
+
+        </div>
+
+        <?php
+        return ob_get_clean();
+    }
+
+    public function process_item($index, $collection_definition) {
+        return true;
+    }
+
+    /**
+     * @return bool
+     */
+    public function exporting_terms(){
+
+        if ( $this->get_option('select_taxonomy') == '' ) {
+            $this->abort();
+            $this->add_error_log('No taxonomy selected');
+            return false;
+        }
+
+        $tax = new Entities\Taxonomy($this->get_option('select_taxonomy'));
+        $term_repo = Repositories\Terms::get_instance();
+
+        //TODO: Retrieve all terms from hierarchy
+    }
+}
\ No newline at end of file