";
117 | $myform .= form_open("$controller/interim");
118 | $myform .= 'This entry could not be made because...
';
119 | $myform .= $this->validation->error_string;
120 |
121 |
122 | /*the rest of this function is common to inserts or update.
123 | Look up in the form array which form field type you want to display, and then build up the html for each different type, as well as inserting the values you want it to echo.*/
124 |
125 |
126 |
127 | foreach($this->form[$controller] as $key => $value)
128 | {
129 |
130 | /*This switch statement develops several types of HTML form field based on information in the form array.
131 | It doesn't yet cover checkboxes or radio or password fields. It adds a 'readonly' type, which is a field that only displays a value and doesn't let the user modify it*/
132 |
133 | $fieldtype = $value[1];
134 | $val_string = $this->validation->$key;
135 | switch($value[1])
136 | {
137 | /*a simple input line*/
138 | case 'input':
139 | $data = array(
140 | 'name' => $key,
141 | 'id' => $key,
142 | 'value' => $currentvalue[$key],
143 | 'maxlength' => '100',
144 | 'size' => '50',
145 | 'style' => 'width:50%',
146 | );
147 | $myform .= "| $value[0] | ";
148 | $myform .= form_input($data);
149 | $myform .= " |
";
150 | if($test == 'second')
151 | {
152 | return 'input';
153 | }
154 | break;
155 |
156 | case 'textarea':
157 | /*a text area field.*/
158 | $data = array(
159 | 'name' => $key,
160 | 'id' => $key,
161 | 'value' => $currentvalue[$key],
162 | 'rows' => '6',
163 | 'cols' => '70',
164 | 'style' => 'width:50%',
165 | );
166 | $myform .= "| $value[0] | ";
167 | $myform .= form_textarea($data);
168 | $myform .= " |
";
169 | break;
170 |
171 | case 'dropdown':
172 | /*a drop down box. Values are dynamically generated from whichever table was specified in the forms array. This table must have an id field (which is now entered in the form) and a name field (which is displayed in the drop-down box).*/
173 | $dropbox = array();
174 | if(isset($value[3]))
175 | {
176 | $temptable = $value[3];
177 | $this->db->select('id, name');
178 | $query = $this->db->get($temptable);
179 | if ($query->num_rows() > 0)
180 | {
181 | foreach ($query->result() as $row)
182 | {
183 | $dropbox[$row->id] = $row->name;
184 | }
185 | }
186 | }
187 | $myform .= "| $value[0] | ";
188 | $myform .= form_dropdown($key, $dropbox, $currentvalue[$key]);
189 | $myform .= " |
";
190 | break;
191 |
192 | case 'submit':
193 | /*a submit field*/
194 | $myform .= "| $value[0] | ";
195 | $time = time();
196 | $data = array(
197 | 'name' => 'submit',
198 | 'id' => 'submit',
199 | );
200 | $myform .= form_submit($data);
201 | $myform .= " |
";
202 |
203 | break;
204 |
205 | case 'hidden':
206 | /*generates a hidden field*/
207 | $myform .= form_hidden($key, $currentvalue[$key]);
208 | break;
209 |
210 | case 'readonly':
211 | /*generates a field the user can see, but not alter.*/
212 |
213 | $myform .= "| $value[0] | $currentvalue[$key]";
214 |
215 | $myform .= form_hidden($key, $currentvalue[$key]);
216 | $myform .= " |
";
217 |
218 | break;
219 |
220 | case 'timestamp':
221 | /*generates a timestamp the first time it's set*/
222 | // $myform .= "| $value[0] | now()";
223 | $timenow = time();
224 |
225 | if($currentvalue[$key]==''||$currentvalue[$key]==0)
226 | {$time = $timenow;}
227 | else{$time = $currentvalue[$key];}
228 |
229 | $myform .= form_hidden($key, $time);
230 | $myform .= " |
";
231 |
232 | break;
233 |
234 | case 'updatestamp':
235 | /*generates a timestamp each time it's altered or viewed*/
236 | // $myform .= "| $value[0] | now()";
237 | $timenow = time();
238 | $myform .= form_hidden($key, $timenow);
239 | $myform .= " |
";
240 |
241 | break;
242 |
243 | default:
244 | $place = __FILE__.__LINE__;
245 | $outcome = "exception: $place: switch can't handle $fieldtype";
246 | /*test block: what if the switch doesn't recognise the form type?'*/
247 | if($test == 'second')
248 | {
249 | return $outcome;
250 | }
251 | /*test block ends*/
252 | else {
253 |
254 | $this->failure($outcome, $controller);
255 | }
256 | }
257 | /*end the foreach loop which generates the form*/
258 | }
259 | $myform .= form_hidden('submit',$time);
260 | $myform .= form_close();
261 | $myform .= "
";
262 |
263 | /*Finally we've built our form and populated it! Now, stuff the form in an array variable and send it to the model which builds up the rest of the view.*/
264 | $data['text'] = $myform;
265 | $this->display->mainpage($data);
266 | }
267 |
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/code/Chapter 13/showall_function.txt:
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https://raw.githubusercontent.com/CodeIgniter-Chinese/rapid-php-application-development/e93cfee90ac42081e54d86e0f6de81341c2d299b/code/Chapter 13/showall_function.txt
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/code/Chapter 13/test_function.txt:
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1 | /*now a suite of self-test functions.*/
2 |
3 | /*first function just calls all the others and supplies any formatting you want. Also it builds/ destroys temporary data table before/ after tests on the database.*/
4 | function test()
5 | {
6 | $return = "