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1 .. -*- coding: utf-8 -*- |
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2 |
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3 Views & Templates |
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4 ================= |
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5 |
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6 |
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7 Look at ``lax/skel/ginco/web/views/basetemplates.py`` and you will |
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8 find the base templates used to generate HTML for your application. |
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9 |
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10 A page is composed as indicated on the schema below : |
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11 |
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12 .. image:: images/lax-book.06-main-template-layout.en.png |
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13 |
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14 In this section we will go through a couple of the primary templates |
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15 you must be interested in, that is to say, the HTMLPageHeader, |
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16 the HTMLPageFooter and the TheMainTemplate. |
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17 |
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18 |
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19 HTMLPageHeader |
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20 -------------- |
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21 |
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22 Let's use a different logo than the default one provided with LAX |
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23 and customize our header. |
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24 |
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25 Change logo |
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26 ~~~~~~~~~~~ |
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27 |
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28 The easiest way to use a different logo is to replace the existing |
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29 ``logo.png`` in ``myapp/data`` by your prefered icon and refresh. |
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30 By default all application will look for a ``logo.png`` to be |
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31 rendered in the logo section. |
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32 |
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33 .. image:: images/lax-book.06-main-template-logo.en.png |
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34 |
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35 [ADD] |
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36 customized external_resources in myapp/data cd crih for reference |
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37 |
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38 [WRITE ME] |
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39 ADD how to use external_resources variables used in ginco/web/webconfig.py |
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40 |
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41 Customize header |
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42 ~~~~~~~~~~~~~~~~ |
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43 |
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44 Let's now move the search box in the header and remove the login form |
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45 from the header. We'll show how to move it to the left column of the application. |
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46 |
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47 Let's sat we do not want anymore the login menu to be in the header, but we |
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48 prefer it to be in the left column just below the logo. As the left column is |
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49 rendered by ``TheMainTemplate``, we will show how to do it in TheMainTemplate_. |
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50 |
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51 First, to remove the login menu, we just need to comment out the display of the |
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52 login component such as follows : :: |
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53 |
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54 class MyHTMLPageHeader(HTMLPageHeader): |
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55 |
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56 def main_header(self, view): |
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57 """build the top menu with authentification info and the rql box""" |
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58 self.w(u'<table id="header"><tr>\n') |
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59 self.w(u'<td id="firstcolumn">') |
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60 self.vreg.select_component('logo', self.req, self.rset).dispatch(w=self.w) |
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61 self.w(u'</td>\n') |
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62 # appliname and breadcrumbs |
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63 self.w(u'<td id="headtext">') |
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64 comp = self.vreg.select_component('appliname', self.req, self.rset) |
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65 if comp and comp.propval('visible'): |
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66 comp.dispatch(w=self.w) |
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67 comp = self.vreg.select_component('breadcrumbs', self.req, self.rset, view=view) |
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68 if comp and comp.propval('visible'): |
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69 comp.dispatch(w=self.w, view=view) |
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70 self.w(u'</td>') |
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71 # logged user and help |
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72 #self.w(u'<td>\n') |
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73 #comp = self.vreg.select_component('loggeduserlink', self.req, self.rset) |
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74 #comp.dispatch(w=self.w) |
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75 #self.w(u'</td><td>') |
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76 |
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77 self.w(u'<td>') |
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78 helpcomp = self.vreg.select_component('help', self.req, self.rset) |
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79 if helpcomp: # may not be available if Card is not defined in the schema |
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80 helpcomp.dispatch(w=self.w) |
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81 self.w(u'</td>') |
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82 # lastcolumn |
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83 self.w(u'<td id="lastcolumn">') |
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84 self.w(u'</td>\n') |
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85 self.w(u'</tr></table>\n') |
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86 self.template('logform', rset=self.rset, id='popupLoginBox', klass='hidden', |
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87 title=False, message=False) |
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88 |
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89 |
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90 |
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91 .. image:: images/lax-book.06-header-no-login.en.png |
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92 |
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93 Let's now move the search box in the top-right header area. To do so, we will |
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94 first create a method to get the search box display and insert it in the header |
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95 table. |
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96 |
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97 :: |
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98 |
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99 from ginco.web.views.basetemplates import HTMLPageHeader |
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100 class MyHTMLPageHeader(HTMLPageHeader): |
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101 def main_header(self, view): |
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102 """build the top menu with authentification info and the rql box""" |
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103 self.w(u'<table id="header"><tr>\n') |
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104 self.w(u'<td id="firstcolumn">') |
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105 self.vreg.select_component('logo', self.req, self.rset).dispatch(w=self.w) |
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106 self.w(u'</td>\n') |
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107 # appliname and breadcrumbs |
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108 self.w(u'<td id="headtext">') |
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109 comp = self.vreg.select_component('appliname', self.req, self.rset) |
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110 if comp and comp.propval('visible'): |
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111 comp.dispatch(w=self.w) |
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112 comp = self.vreg.select_component('breadcrumbs', self.req, self.rset, view=view) |
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113 if comp and comp.propval('visible'): |
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114 comp.dispatch(w=self.w, view=view) |
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115 self.w(u'</td>') |
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116 |
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117 # logged user and help |
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118 #self.w(u'<td>\n') |
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119 #comp = self.vreg.select_component('loggeduserlink', self.req, self.rset) |
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120 #comp.dispatch(w=self.w) |
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121 #self.w(u'</td><td>') |
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122 |
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123 # search box |
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124 self.w(u'<td>') |
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125 self.get_searchbox(view, 'left') |
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126 self.w(u'</td>') |
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127 |
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128 self.w(u'<td>') |
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129 helpcomp = self.vreg.select_component('help', self.req, self.rset) |
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130 if helpcomp: # may not be available if Card is not defined in the schema |
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131 helpcomp.dispatch(w=self.w) |
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132 self.w(u'</td>') |
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133 # lastcolumn |
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134 self.w(u'<td id="lastcolumn">') |
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135 self.w(u'</td>\n') |
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136 self.w(u'</tr></table>\n') |
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137 self.template('logform', rset=self.rset, id='popupLoginBox', klass='hidden', |
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138 title=False, message=False) |
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139 |
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140 def get_searchbox(self, view, context): |
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141 boxes = list(self.vreg.possible_vobjects('boxes', self.req, self.rset, |
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142 view=view, context=context)) |
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143 if boxes: |
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144 for box in boxes: |
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145 if box.id == 'search_box': |
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146 box.dispatch(w=self.w, view=view) |
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147 |
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148 |
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149 |
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150 |
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151 HTMLPageFooter |
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152 -------------- |
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153 |
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154 If you want to change the footer for example, look |
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155 for HTMLPageFooter and override it in your views file as in : |
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156 :: |
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157 |
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158 form ginco.web.views.basetemplates import HTMLPageFooter |
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159 class MyHTMLPageFooter(HTMLPageFooter): |
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160 def call(self, **kwargs): |
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161 self.w(u'<div class="footer">') |
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162 self.w(u'This website has been created with <a href="http://lax.logilab.org">LAX</a>.') |
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163 self.w(u'</div>') |
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164 |
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165 Updating a view does not require any restart of the server. By reloading |
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166 the page you can see your new page footer. |
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167 |
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168 |
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169 TheMainTemplate |
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170 --------------- |
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171 .. _TheMainTemplate: |
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172 |
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173 The MainTemplate is a bit complex as it tries to accomodate many |
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174 different cases. We are now about to go through it and cutomize entirely |
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175 our application. |
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176 |
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177 TheMainTemplate is responsible for the general layout of the entire application. |
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178 It defines the template of ``id = main`` that is used by the application. Is |
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179 also defined in ``ginco/web/views/basetemplates.py`` another template that can |
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180 be used based on TheMainTemplate called SimpleMainTemplate which does not have |
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181 a top section. |
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182 |
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183 .. image:: images/lax-book.06-simple-main-template.en.png |
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184 |
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185 CSS changes |
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186 ----------- |
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187 |
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188 We cannot modify the order in which the application is reading the CSS. In |
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189 the case we want to create new CSS style, the best is to define it a in a new |
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190 CSS located under ``myapp/data/``. |
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191 |
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192 If you want to modify an existing CSS styling property, you will have to use |
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193 ``!important`` declaration to override the existing property. The application |
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194 apply a higher priority on the default CSS and you can not change that. |
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195 Customized CSS will not be read first. |
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196 |
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197 1 |
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198 [TODO] |
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199 Add login menu in left column |
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200 |
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201 |
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202 [WRITE ME] |
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203 |
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204 * customize MainTemplate and show that everything in the user |
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205 interface can be changed |
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206 |
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207 [TODO] |
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208 Rajouter une section pour definir la terminologie utilisee. |
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209 Dans ginco-doc rajouter une section pour erudi-ctl shell ou |
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210 on liste les commandes dispos. |