107 lines
2.8 KiB
Ruby
107 lines
2.8 KiB
Ruby
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# Similar to an ActiveRecord class, but uses PluginStore for storage instead. Adapted from discourse-data-explorer
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# Using this means we can use a standard serializer for sending JSON to the client, and also have convenient save/update/delete methods
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# Since this is now being used in two plugins, maybe it should be built into core somehow
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class DiscourseChat::Rule
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attr_accessor :id, :provider, :channel, :category_id, :tags, :filter
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def initialize(h={})
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h.each {|k,v| public_send("#{k}=",v)}
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end
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# saving/loading functions
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def self.alloc_id
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DistributedMutex.synchronize('discourse-chat_rule-id') do
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max_id = DiscourseChat.pstore_get("rule:_id")
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max_id = 1 unless max_id
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DiscourseChat.pstore_set("rule:_id", max_id + 1)
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max_id
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end
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end
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def self.from_hash(h)
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rule = DiscourseChat::Rule.new
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[:provider, :channel, :category_id, :tags, :filter].each do |sym|
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rule.send("#{sym}=", h[sym]) if h[sym]
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end
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if h[:id]
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rule.id = h[:id].to_i
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end
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rule
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end
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def to_hash
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{
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id: @id,
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provider: @provider,
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channel: @channel,
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category_id: @category_id,
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tags: @tags,
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filter: @filter,
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}
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end
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def self.find(id, opts={})
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hash = DiscourseChat.pstore_get("rule:#{id}")
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unless hash
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return DiscourseChat::Rule.new if opts[:ignore_deleted]
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raise Discourse::NotFound
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end
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from_hash hash
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end
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def save
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unless @id && @id > 0
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@id = self.class.alloc_id
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end
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DiscourseChat.pstore_set "rule:#{id}", to_hash
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return self
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end
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def destroy
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DiscourseChat.pstore_delete "rule:#{id}"
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end
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def read_attribute_for_serialization(attr)
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self.send(attr)
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end
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def self.all_for_provider(provider)
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self.where("value::json->>'provider'=?", provider)
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end
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def self.all_for_category(category_id)
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if category_id.nil?
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self.where("json_typeof(value::json->'category_id')='null'")
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else
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self.where("value::json->>'category_id'=?", category_id.to_s)
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end
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end
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# Use JSON selectors like this:
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# Rule.where("value::json->>'provider'=?", "telegram")
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def self.where(*args)
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rows = self._all_raw.where(*args)
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self._from_psr_rows(rows)
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end
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def self.all
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self._from_psr_rows(self._all_raw)
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end
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def self._all_raw
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PluginStoreRow.where(plugin_name: DiscourseChat.plugin_name)
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.where("key LIKE 'rule:%'")
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.where("key != 'rule:_id'")
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end
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def self._from_psr_rows(raw)
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raw.map do |psr|
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from_hash PluginStore.cast_value(psr.type_name, psr.value)
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end
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end
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def self.destroy_all
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self._all_raw().destroy_all
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end
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end |