annotate framework/env/ui/field/select.lua @ 16:944642a3e488
New set_cookie functions; Added inline documentation; Make set_allowed_json_request_slots work in interactive shell
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jbe/bsw |
| date |
Thu Mar 25 17:37:03 2010 +0100 (2010-03-25) |
| parents |
9fdfb27f8e67 |
| children |
6e08067e66c1 |
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line source |
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1 --[[--
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2 ui.field.select{
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3 ... -- generic ui.field.* arguments, as described for ui.autofield{...}
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4 foreign_records = foreign_records, -- list of records to be chosen from, or function returning such a list
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5 foreign_id = foreign_id, -- name of id field in foreign records
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6 foreign_name = foreign_name, -- name of field to be used as name in foreign records
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7 format_options = format_options -- format options for format.string
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8 }
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9
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10 This function inserts a select field in the active slot. For description of the generic field helper arguments, see help for ui.autofield{...}.
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11
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12 --]]--
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13
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14 function ui.field.select(args)
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15 ui.form_element(args, {fetch_value = true}, function(args)
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16 local foreign_records = args.foreign_records
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17 if type(foreign_records) == "function" then
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18 foreign_records = foreign_records(args.record)
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19 end
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20 if args.readonly then
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21 local name
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22 for idx, record in ipairs(foreign_records) do
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23 if record[args.foreign_id] == args.value then
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24 name = record[args.foreign_name]
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25 break
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26 end
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27 end
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28 ui.tag{
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29 tag = args.tag,
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30 attr = args.attr,
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31 content = format.string(name, args.format_options)
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32 }
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33 else
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34 local attr = table.new(args.attr)
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35 attr.name = args.html_name
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36 ui.tag{
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37 tag = "select",
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38 attr = attr,
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39 content = function()
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40 if args.nil_as then
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41 ui.tag{
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42 tag = "option",
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43 attr = { value = "" },
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44 content = format.string(
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45 args.nil_as,
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46 args.format_options
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47 )
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48 }
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49 end
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50 for idx, record in ipairs(foreign_records) do
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51 local key = record[args.foreign_id]
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52 ui.tag{
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53 tag = "option",
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54 attr = {
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55 value = key,
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56 selected = ((key == args.value) and "selected" or nil)
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57 },
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58 content = format.string(
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59 record[args.foreign_name],
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60 args.format_options
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61 )
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62 }
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63 end
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64 end
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65 }
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66 end
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67 end)
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68 end
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