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<?php
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/**
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* $Id$
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*
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* Drupal carbon account module
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*
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* Created on 18-Oct-2006
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*
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* @file
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* definition of carbon_account node. Each carbon_account
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* node contains settings such as choice of preferred carbon
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* model and privacy settings that control the presentation of
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* a carbon footprint.
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*/
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/**
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* Implementation of hook_access().
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*
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* Defer to carbon_access because it is easier to check
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* access for all carbon types in one place.
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*/
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function carbon_account_access($op, $node)
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{
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return carbon_access($op, $node);
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}
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/**
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* Return an array of protection options
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* @return array
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*/
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function _get_protection_options() {
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return array(t("private"), t("share with others in my group"),
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t("share with all logged in users"), t("public"));
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}
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/**
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* Implementation of hook_form().
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*/
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function carbon_account_form(&$node, &$param) {
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global $user;
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$form = array();
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$form["account"] = array(
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"#type" => "fieldset",
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"#title" => "Carbon settings",
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"#weight" => -2,
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"#collapsible" => TRUE,
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"#collapsed" => FALSE);
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$form["account"]["title"] = array(
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"#type" => "textfield",
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"#title" => t("Title of this Account"),
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"#required" => TRUE,
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"#default_value" => empty($node->title) ? $node->name : $node->title,
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"#size" => 20,
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"#maxlength" => 40,
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"#weight" => -1,
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"#description" => t("Your name or someone else's name, name of a building etc. It can be different from your username."));
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if (variable_get("carbon_use_postal_code", 1))
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$form["account"]["postcode"] = array(
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"#type" => "textfield",
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"#title" => t("Postcode"),
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"#required" => FALSE,
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"#default_value" => empty($node->postcode) ? '' : $node->postcode,
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"#size" => 10,
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"#maxlength" => 20,
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"#weight" => 1,
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"#description" => t("Either some or all of your postcode or zipcode. Interesting to others " .
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"if you share your carbon account."));
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if (variable_get("carbon_use_organization", 1)
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|| user_access("administer accounts")
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|| user_access("administer carbon nodes"))
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$form["account"]["organization"] = array(
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"#type" => "textfield",
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"#title" => t("Local Group"),
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"#default_value" => empty($node->organization) ? '' : $node->organization,
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"#size" => 20,
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"#maxlength" => 20,
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"#weight" => 2,
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"#description" => t("Name of any local group, leave blank if none."),
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"#required" => FALSE);
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$model_map = CarbonSources::getDefault()->getModelMap();
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$model_keys = array_keys($model_map);
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if (variable_get("carbon_use_model_selection", 1))
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$form["account"]["model_index"] = array(
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"#type" => "select",
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"#title" => t("Preferred emissions model"),
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"#required" => FALSE,
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"#options" => array_values($model_map),
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"#default_value" => isset($node->model) ? array_search($node->model, $model_keys) : 0 ,
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"#description" => "Select the preferred model that you want to use to calculate the CO2 emissions." .
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" Not all the models support all possible <a href='?q=carbon/source'>carbon " .
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" sources</a>; in which case substitutes will be made. Leave as -no preference- if you are not sure.",
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"#weight" => 3);
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$form["account"]["protection"] = array(
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"#type" => "select",
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"#title" => t("Privacy"),
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"#required" => FALSE,
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"#default_value" => !isset($node->protection) ? 2 : $node->protection,
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"#description" => t("Who can see this carbon footprint?"),
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"#options" => _get_protection_options(),
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"#weight" => 4);
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$form["account"]["firstdate_s"] = array(
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"#type" => "textfield",
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"#title" => t("First day of reporting period"),
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"#required" => FALSE,
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"#size" => 20,
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"#maxlength" => 20,
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"#default_value" => empty($node->firstdate) ? "" : _format_date($node->firstdate),
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"#weight" => 5,
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"#description" =>
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t("Format: %time. Can be left blank. The latest 12 months of " .
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"carbon stamps are used to calculate your footprint which will be " .
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"displayed alongside others in charts et cetera (assuming your privacy " .
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"settings allow this). You can override that date " .
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"by setting this field to the end of the period you want to use " .
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"and you can change the length of the period below. ",
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array("%time" => _format_date_only(time()))));
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$form["account"]["period"] = array(
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"#type" => "textfield",
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"#title" => t("Reporting period in months"),
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"#required" => FALSE,
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"#size" => 2,
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"#maxlength" => 20,
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"#default_value" => empty($node->period) ? 12 : $node->period,
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"#weight" => 6,
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"#description" =>
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t("The length of the reporting period in months."));
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$e0 = variable_get("carbon_energy_units_0", "");
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if (!empty($e0))
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$form["account"]["enablekwh0"] = array(
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"#type" => "checkbox",
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"#title" => t("Display !s in results", array("!s" => $e0)),
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"#required" => false,
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"#default_value" => isset($node->enablekwh0)? $node->enablekwh0 : false,
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"#weight" => 10);
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$e1 = variable_get("carbon_energy_units_1", "");
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if (!empty($e1))
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$form["account"]["enablekwh1"] = array(
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"#type" => "checkbox",
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"#title" => t("Display !s in results", array("!s" =>$e1)),
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"#required" => false,
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"#default_value" => isset($node->enablekwh1)? $node->enablekwh1 : false,
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"#weight" => 11);
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$form["account"]["enableco2"] = array(
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"#type" => "checkbox",
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"#title" => t("Display CO2 emissions in results"),
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"#required" => false,
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"#default_value" => isset($node->enableco2)? $node->enableco2 : true,
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"#weight" => 12);
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$form['#submit'] = array('carbon_account_submit');
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return $form;
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}
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/**
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* Validate our forms
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* @param string form id
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* @param array form values
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*/
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function carbon_account_validate($form_id, $form_values)
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{
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}
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/**
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* Implementation of hook_view, add our node specific information
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* @param node object to display
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* @param boolean is this a teaser or full node?
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* @param boolean is this displaying on its own page
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*/
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function carbon_account_view(&$node, $teaser = FALSE, $page = FALSE)
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{
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$node->content["account_view"] = array("#weight"=>0, "#value" => carbon_view($node, 'view'));
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return $node ;
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}
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/**
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* Implemenation of hook_load
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* @param node object to load additional information for
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* @return object with carbon fields
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*/
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function carbon_account_load($node) {
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global $user ;
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$query = db_query("SELECT f.*, s.uid as friends_uid " .
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"FROM {carbon_account} f " .
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"LEFT JOIN {carbon_account_share} s ON f.nid = s.nid " .
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"WHERE f.nid = %d ",
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$node->nid);
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// most user will not be sharing records. However if they are
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// we pick up their friends uid's while loading the footprint
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$first_record = null ;
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while ($record = db_fetch_object($query))
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{
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if (!isset($first_record))
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$first_record = $record ;
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$first_record->friends = array();
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if (isset($friends_uid))
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$first_record->friends[] = $friends_uid ;
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}
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return $first_record;
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}
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/**
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* This function is declared in carbon_account_form and called prior
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* to node_save.
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*
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* @param $form
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* @param $form_state discovered that there is a ['values'] field.
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*
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*/
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function carbon_account_submit(&$form, &$form_state)
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{
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$model_keys = array_keys(CarbonSources::getDefault()->getModelMap());
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$f = &$form_state['values'];
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if (!empty($f['firstdate_s']))
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{
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$f['firstdate'] = strtotime($f['firstdate_s']) ;
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}
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if (isset($f['model_index']))
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{
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$f['model'] = $model_keys[$f['model_index']] ;
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}
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}
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/**
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* Implementation of hook_insert, which saves carbon-specific information
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* into the carbon table
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* @param node object
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*/
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function carbon_account_insert(&$node)
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{
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db_query("INSERT INTO {carbon_account} (postcode, organization, model, firstdate, period, " .
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" enablekwh0, kwh0, enablekwh1, kwh1, enableco2, co2, " .
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" filing_status, protection, nid) " .
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" VALUES ('%s', '%s', '%s', %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d)",
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$node->postcode, $node->organization, $node->model, $node->firstdate, $node->period,
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$node->enablekwh0, $node->kwh0, $node->enablekwh1, $node->kwh1, $node->enableco2, $node->co2,
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$node->filing_status, $node->protection,$node->nid);
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drupal_set_message(t("To retrieve your carbon account on a later " .
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"date click on <em>my account</em>."));
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}
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/**
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* Implementation of hook_update, which saves updated todo-specific
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* information into the carbon_account table
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*
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* @param node object
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*/
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function carbon_account_update(&$node)
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{
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$result = db_query("UPDATE {carbon_account} " .
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" SET postcode='%s', organization='%s', model='%s', firstdate=%d, period=%d, " .
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" enablekwh0=%d, kwh0=%d, enablekwh1=%d, kwh1=%d, enableco2=%d, co2=%d, " .
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" filing_status=%d, protection=%d WHERE nid=%d",
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$node->postcode, $node->organization, $node->model, $node->firstdate, $node->period,
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$node->enablekwh0, $node->kwh0, $node->enablekwh1, $node->kwh1, $node->enableco2, $node->co2,
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$node->filing_status, $node->protection,$node->nid);
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return $result ;
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}
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/**
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* Implementation of hook_delete().
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*/
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function carbon_account_delete($node) {
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db_query("DELETE FROM {carbon_stamp_account} WHERE fid = %d", $node->nid);
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db_query("DELETE FROM {carbon_account_share} WHERE nid = %d", $node->nid);
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db_query("DELETE FROM {carbon_account} WHERE nid = %d", $node->nid);
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}
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?>
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