1 | <?php |
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2 | require_once (GALAXIA_LIBRARY.SEP.'src'.SEP.'common'.SEP.'Base.php'); |
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3 | /** |
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4 | * Represents the process that is being executed when an activity |
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5 | * is executed. You can access this class methods using $process from any activity. |
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6 | * No need to instantiate a new object |
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7 | * |
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8 | * @package Galaxia |
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9 | * @license http://www.gnu.org/copyleft/gpl.html GPL |
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10 | */ |
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11 | class Process extends Base { |
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12 | /** |
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13 | * @var string $name |
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14 | * @access protected |
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15 | */ |
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16 | var $name; |
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17 | /** |
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18 | * @var string $description |
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19 | * @access protected |
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20 | */ |
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21 | var $description; |
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22 | /** |
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23 | * @var int $version |
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24 | * @access protected |
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25 | */ |
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26 | var $version; |
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27 | /** |
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28 | * @var string $normalizedName |
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29 | * @access protected |
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30 | */ |
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31 | var $normalizedName; |
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32 | /** |
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33 | * @var string $pId Process id |
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34 | * @access protected |
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35 | */ |
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36 | var $pId = 0; |
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37 | /** |
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38 | * @var array $config |
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39 | * @access protected |
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40 | */ |
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41 | var $config = array(); |
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42 | |
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43 | /** |
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44 | * Constructor |
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45 | * |
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46 | * @param object $db |
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47 | * @return object |
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48 | * @access public |
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49 | */ |
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50 | function Process(&$db) |
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51 | { |
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52 | $this->child_name = 'Process'; |
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53 | parent::Base($db); |
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54 | } |
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55 | |
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56 | /** |
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57 | * Loads a process from the database |
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58 | * |
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59 | * @param int $pId |
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60 | * @return bool |
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61 | * @access public |
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62 | */ |
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63 | function getProcess($pId) |
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64 | { |
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65 | $query = "select * from `".GALAXIA_TABLE_PREFIX."processes` where `wf_p_id`=?"; |
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66 | $result = $this->query($query,array($pId)); |
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67 | if(!$result->numRows()) return false; |
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68 | $res = $result->fetchRow(); |
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69 | $this->name = $res['wf_name']; |
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70 | $this->description = $res['wf_description']; |
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71 | $this->normalizedName = $res['wf_normalized_name']; |
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72 | $this->version = $res['wf_version']; |
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73 | $this->pId = $res['wf_p_id']; |
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74 | //config is load only on the first getConfigValues call |
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75 | } |
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76 | |
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77 | /** |
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78 | * Gets the process Id |
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79 | * |
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80 | * @return int |
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81 | * @access public |
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82 | */ |
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83 | function getProcessId() |
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84 | { |
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85 | return $this->pId; |
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86 | } |
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87 | |
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88 | /** |
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89 | * Gets the normalized name of the process |
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90 | * |
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91 | * @return string |
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92 | * @access public |
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93 | */ |
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94 | function getNormalizedName() |
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95 | { |
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96 | return $this->normalizedName; |
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97 | } |
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98 | |
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99 | /** |
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100 | * Gets the process name |
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101 | * |
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102 | * @return string |
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103 | * @access public |
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104 | */ |
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105 | function getName() |
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106 | { |
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107 | return $this->name; |
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108 | } |
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109 | |
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110 | /** |
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111 | * Gets the process version |
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112 | * |
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113 | * @return int |
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114 | * @access public |
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115 | */ |
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116 | function getVersion() |
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117 | { |
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118 | return $this->version; |
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119 | } |
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120 | |
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121 | /** |
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122 | * Gets information about an activity in this process by name |
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123 | * |
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124 | * @param string $actname |
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125 | * @return array |
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126 | * @access public |
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127 | */ |
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128 | function getActivityByName($actname) |
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129 | { |
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130 | // Get the activity data |
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131 | $query = "select * from `".GALAXIA_TABLE_PREFIX."activities` where `wf_p_id`=? and `wf_name`=?"; |
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132 | $pId = $this->pId; |
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133 | $result = $this->query($query,array($pId,$actname)); |
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134 | if(!$result->numRows()) return false; |
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135 | $res = $result->fetchRow(); |
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136 | return $res; |
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137 | } |
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138 | |
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139 | /** |
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140 | * Store config values for this process |
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141 | * |
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142 | * @param array $parameters pairs of (config_variables_names => (type => value)) |
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143 | * type can be int or text, anything else is considered text |
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144 | * int value of -1 is considered as 'default global configuration option'. So nothing |
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145 | * will be stored for this process (and existing values are erased) |
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146 | * @return bool |
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147 | * @access public |
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148 | */ |
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149 | function setConfigValues(&$parameters) |
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150 | { |
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151 | if (!is_array($parameters)) |
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152 | { |
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153 | return false; |
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154 | } |
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155 | $array_delete=array(); |
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156 | $array_set=array(); |
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157 | $pId = (string)$this->pId; |
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158 | foreach ($parameters as $config_var => $config_value) |
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159 | { |
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160 | //all config values will be deleted |
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161 | $array_delete[] = array($pId, $config_var); |
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162 | |
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163 | //foreach but normally there's only one loop |
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164 | foreach($config_value as $value_type => $value_zone) |
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165 | { |
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166 | $ok = true; |
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167 | if ($value_type=='int') |
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168 | { |
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169 | //special value, refer to global config values for this process conf variable |
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170 | //we don't want any value stored for this process conf variable |
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171 | //so we break the foreach before setting the $array_set |
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172 | if ($value_zone == -1) |
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173 | { |
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174 | $ok=false; |
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175 | break; |
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176 | } |
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177 | //else it's classic |
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178 | $value_int = $value_zone; |
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179 | $value= ''; |
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180 | } |
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181 | else |
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182 | { |
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183 | $value = $value_zone; |
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184 | $value_int = null; |
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185 | } |
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186 | } |
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187 | //we are going to set this config value if $ok says so |
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188 | if ($ok) $array_set[] = array($config_var, $value, $value_int, $pId); |
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189 | } |
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190 | //delete previous config values if they are in a bulk statement |
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191 | if (count($array_delete)>0) |
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192 | { |
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193 | $result= $this->query("DELETE from ".GALAXIA_TABLE_PREFIX."process_config where wf_p_id=? and wf_config_name=?",$array_delete, -1,-1,true,'',true); |
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194 | } |
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195 | //insert in a bulk statement |
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196 | if (count($array_set)>0) |
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197 | { |
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198 | $result= $this->query("INSERT into ".GALAXIA_TABLE_PREFIX."process_config |
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199 | (wf_config_name,wf_config_value,wf_config_value_int,wf_p_id) values (?,?,?,?)" |
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200 | ,$array_set, -1,-1,true,'', true); |
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201 | } |
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202 | } |
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203 | |
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204 | /** |
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205 | * Gets all the process configuration values. The configuration data is then cached for this process object life |
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206 | * |
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207 | * @param array $parameters pairs of (config_variables_names => default_values) |
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208 | * For a variable name which has no previous value and no global value (default process value) |
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209 | * it will return default_value and this default value will be the NEW STORED value |
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210 | * If no default value is given we assume it's a false |
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211 | * @return array |
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212 | * @access public |
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213 | */ |
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214 | function getConfigValues(&$parameters) |
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215 | { |
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216 | if (!is_array($parameters)) |
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217 | { |
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218 | return false; |
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219 | } |
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220 | if (count($this->config) == 0) |
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221 | { // first time we come |
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222 | // Get all the config data for this process |
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223 | $query = "select * from ".GALAXIA_TABLE_PREFIX."process_config where wf_p_id=?"; |
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224 | $pId = $this->pId; |
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225 | $result = $this->query($query,array($pId)); |
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226 | |
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227 | if($result->numRows()>0) |
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228 | { |
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229 | //we add process datas for some config_name, we store it in $this->config |
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230 | while ($res=$result->fetchRow()) |
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231 | { |
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232 | //int values are not stored in the same field |
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233 | $int_value= $res['wf_config_value_int']; |
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234 | if (isset($int_value)) |
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235 | { |
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236 | $this->config[$res['wf_config_name']] = $int_value; |
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237 | } |
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238 | else |
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239 | { |
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240 | $this->config[$res['wf_config_name']] = $res['wf_config_value']; |
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241 | } |
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242 | } |
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243 | } |
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244 | }// the second time we jump here |
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245 | |
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246 | //parse config_name asked |
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247 | $local_array = array(); |
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248 | $global_default_array = array(); |
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249 | foreach ($parameters as $config_var => $default_value) |
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250 | { |
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251 | if (isset($this->config[$config_var])) |
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252 | {// we already know this config value |
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253 | //echo "<br>ok we had one for ".$config_var; |
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254 | $local_array[$config_var] = $this->config[$config_var]; |
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255 | } |
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256 | else |
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257 | { |
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258 | // we have no value for it here, we'll ask it in the global conf |
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259 | //echo "<br>we had nothing for ".$config_var; |
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260 | $global_default_array[$config_var] = $default_value; |
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261 | } |
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262 | } |
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263 | |
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264 | // if we have some not set value that we need to check in global conf |
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265 | if (count($global_default_array) > 0) |
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266 | { |
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267 | $global_array =& galaxia_get_config_values($global_default_array); |
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268 | } |
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269 | $result = (array)$local_array + (array)$global_array; |
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270 | return $result; |
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271 | } |
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272 | } |
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273 | |
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274 | ?> |
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