48 lines
2.1 KiB
Go
48 lines
2.1 KiB
Go
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package ConfigurationDB
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import (
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"github.com/SommerEngineering/Ocean/Log"
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LM "github.com/SommerEngineering/Ocean/Log/Meta"
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"gopkg.in/mgo.v2/bson"
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)
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// This function updates a configuration value e.g. from the admin's configuration web interface.
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func UpdateValue(name string, configuration ConfigurationDBEntry) {
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// Check the configuration's name:
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if name == `` {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, `Was not able to update a configuration value.`, `The given name was nil!`)
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return
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}
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// Ensure, that the configuration is already present:
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if count, errFind := collection.Find(bson.D{{"Name", name}}).Count(); errFind != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `Was not able to update a configuration value.`, `Error while find the old value.`, errFind.Error())
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return
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} else {
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// Is the configuration already present?
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if count == 0 {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, `Was not able to update a configuration value.`, `The desired configuration is not present.`)
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return
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}
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}
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// Ensure, that the configuration value also uses the same name:
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if name != configuration.Name {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, `Was not able to update a configuration value.`, `The given name was different with the name of the desired configuration value.`)
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return
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}
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//
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// Case: Any precondition is fulfilled
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//
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// Selection of the correct configuration (the name is a unique value):
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selector := bson.D{{"Name", name}}
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if errUpdate := collection.Update(selector, configuration); errUpdate != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `Was not able to update a configuration value.`, `Error while updating the database.`, errUpdate.Error())
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}
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return
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}
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