mirror of https://github.com/koreader/koreader
parent
485890f0fd
commit
1cc44feb6f
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DocSettings = {}
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DocSettings_mt = { __index = DocSettings }
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function DocSettings:open(docfile)
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local new = {}
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new.docdb, errno, errstr = sqlite3.open(docfile..".kpdfview")
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if new.docdb ~= nil then
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new.docdb:exec("CREATE TABLE IF NOT EXISTS settings (key TEXT PRIMARY KEY, value TEXT);")
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new.stmt_readsetting = new.docdb:prepare("SELECT value FROM settings WHERE key = ?;")
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new.stmt_savesetting = new.docdb:prepare("INSERT OR REPLACE INTO settings (key, value) VALUES (?, ?);")
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end
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return setmetatable(new, DocSettings_mt)
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end
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function DocSettings:readsetting(key)
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if self.docdb ~= nil then
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self.stmt_readsetting:reset()
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self.stmt_readsetting:bind_values(key)
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local result = self.stmt_readsetting:step()
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if result == sqlite3.ROW then
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return self.stmt_readsetting:get_value(0)
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end
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end
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end
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function DocSettings:savesetting(key, value)
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if self.docdb ~= nil then
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self.stmt_savesetting:reset()
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self.stmt_savesetting:bind_values(key, value)
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self.stmt_savesetting:step()
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end
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end
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function DocSettings:close()
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if self.docdb ~= nil then
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self.docdb:close()
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end
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end
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