Mercurial > libervia-backend
annotate doc/jp/pubsub_node_schema.rst @ 3167:d0fb79f97466
quick frontends (app): added an "ignore_missing" argument to RemoveListener:
normally an error is logged when removeListener is call on a inexisting listener, but
sometimes listeners are added only in specific scenarios, and it may be handy to try to
delete them without having to explictly check that they have been used.
| author | Goffi <goffi@goffi.org> |
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| date | Wed, 12 Feb 2020 19:44:05 +0100 |
| parents | 72583524cfd3 |
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| rev | line source |
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1 .. _jp-pubsub_node_schema: |
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2 |
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3 ========================================= |
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4 pubsub/node/schema: nodes schema handling |
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5 ========================================= |
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6 |
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7 ``node schema`` is an experimental feature to associate a data form with a PubSub node, and |
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8 reject items not following this form. This feature is currently only available with SàT |
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9 PubSub. |
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10 |
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11 Those commands can only be used by an owner of the node. |
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12 |
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13 set |
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14 === |
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15 |
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16 Set the schema of a node. The raw schema is written directly as positional argument. |
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17 |
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18 example |
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19 ------- |
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20 |
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21 Set the schema for tickets node using the file ``tickets_schema.xml`` from ``$HOME`` |
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22 directory. Shell substition is used here to put the content of the file in the positional |
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23 argument:: |
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24 |
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25 $ jp pubsub node schema set -n org.salut-a-toi.tickets:0 -s pubsub.example.org "$(<~/test_schema.xml)" |
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26 |
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27 |
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28 edit |
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29 ==== |
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30 |
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31 Edit the schema of a node using your local editor (the one set in ``$EDITOR``). |
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32 |
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33 If you don't change anything or publish an empty schema, the edition will be cancelled. |
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34 |
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35 :ref:`draft_common` commands can be used. |
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36 |
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37 example |
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38 ------- |
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39 |
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40 Edit the tickets node schema:: |
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41 |
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42 $ jp pubsub node schema edit -n org.salut-a-toi.tickets:0 -s pubsub.example.org |
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43 |
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44 |
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45 example |
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46 ------- |
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47 |
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48 get |
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49 === |
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50 |
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51 Retrieve schema of a node. |
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52 |
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53 example |
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54 ------- |
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55 |
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56 Get schema of tickets and save it to a file named ``tickets_schema.xml`` in ``$HOME`` |
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57 directory:: |
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58 |
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59 $ jp pubsub node schema get -n org.salut-a-toi.tickets:0 -s pubsub.example.org > ~/tickets_schema.xml |