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line source |
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bsw@279
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1 function model.has_rendered_content(class, rendered_class, content_field_name)
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bsw@279
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2
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bsw@279
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3 local content_field_name = content_field_name or 'content'
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bsw@279
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4
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bsw@279
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5 -- render content to html, save it as rendered_class and return it
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bsw@397
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6 function class.object:render_content(force_rendering)
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bsw@279
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7 -- local draft for update
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bsw@879
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8
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bsw@879
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9 local selector = class:new_selector()
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bsw@879
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10
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bsw@895
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11 if type(class.primary_key) == "table" then
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bsw@879
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12 for i, key in ipairs(class.primary_key) do
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bsw@879
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13 selector:add_where{ "$ = ?", { key }, self[key] }
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bsw@879
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14 end
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bsw@879
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15 else
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bsw@879
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16 selector:add_where{ "id = ?", self.id }
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bsw@879
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17 end
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bsw@879
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18
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bsw@879
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19 local lock = selector:single_object_mode():for_update():exec()
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bsw@879
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20
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bsw@279
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21 -- check if there is already a rendered content
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bsw@879
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22 local selector = rendered_class:new_selector()
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bsw@879
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23 if type(class.primary_key) == "table" then
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bsw@879
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24 for i, key in ipairs(class.primary_key) do
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bsw@879
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25 selector:add_where{ "$.$ = ?", { rendered_class.table }, { key }, self[key] }
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bsw@879
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26 end
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bsw@879
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27 else
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bsw@895
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28 selector:add_where{ "$." .. class.table .. "_id = ?", { rendered_class.table }, self.id }
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bsw@879
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29 end
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bsw@879
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30 local rendered = selector:add_where{ "format = 'html'" }
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bsw@279
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31 :optional_object_mode()
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bsw@279
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32 :exec()
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bsw@279
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33 if rendered then
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bsw@397
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34 if force_rendering then
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bsw@397
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35 rendered:destroy()
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bsw@397
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36 else
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bsw@397
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37 return rendered
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bsw@397
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38 end
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bsw@279
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39 end
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bsw@279
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40 -- create rendered_class record
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bsw@279
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41 local rendered = rendered_class:new()
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bsw@879
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42 if type(class.primary_key) == "table" then
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bsw@879
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43 for i, key in ipairs(class.primary_key) do
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bsw@879
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44 rendered[key] = self[key]
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bsw@879
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45 end
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bsw@879
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46 else
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bsw@879
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47 rendered[class.table .. "_id"] = self.id
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bsw@879
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48 end
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bsw@279
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49 rendered.format = "html"
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bsw@1045
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50 if self.formatting_engine then
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bsw@1045
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51 rendered.content = format.wiki_text(self[content_field_name], self.formatting_engine)
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bsw@1045
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52 else
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bsw@1045
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53 rendered.content = self[content_field_name]
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bsw@1045
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54 end
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bsw@279
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55 rendered:save()
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bsw@279
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56 -- and return it
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bsw@279
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57 return rendered
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bsw@279
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58 end
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bsw@279
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59
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bsw@279
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60 -- returns rendered version for specific format
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bsw@279
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61 function class.object:get_content(format)
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bsw@279
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62 -- Fetch rendered_class record for specified format
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bsw@879
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63 local selector = rendered_class:new_selector()
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bsw@879
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64 if type(class.primary_key) == "table" then
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bsw@879
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65 for i, key in ipairs(class.primary_key) do
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bsw@879
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66 selector:add_where{ "$.$ = ?", { rendered_class.table }, { key }, self.id }
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bsw@879
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67 end
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bsw@879
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68 else
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bsw@879
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69 selector:add_where{ class.table .. "_id = ?", self.id }
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bsw@879
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70 end
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bsw@879
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71 local rendered = selector:add_where{ "format = ?", format }
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bsw@279
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72 :optional_object_mode()
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bsw@279
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73 :exec()
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bsw@279
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74 -- If this format isn't rendered yet, render it
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bsw@279
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75 if not rendered then
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bsw@279
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76 rendered = self:render_content()
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bsw@279
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77 end
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bsw@279
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78 -- return rendered content
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bsw@279
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79 return rendered.content
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bsw@279
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80 end
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bsw@279
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81
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bsw@279
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82 end |